If you’re searching for a durable, reliable, and versatile material that can be used for a variety of applications, polyurethane blocks are an ideal choice. A polyurethane block is a type of polymer with outstanding physical properties, making it an excellent solution for any project.

From making machining material to heavy-duty industrial applications, polyurethane blocks are an excellent option for many uses. These blocks also come in many shapes, sizes, and colors so that you can find the perfect fit for your project.

When buying polyurethane blocks, there are several different sources you can purchase them from. Read on to learn more about polyurethane blocks, where you can get them, and how to get the best deal for your purchase.

Why Are Polyurethane Blocks Used?

For a good reason, polyurethane blocks are a popular choice in many different applications in various industries. This type of polymer offers excellent durability and strength, making it perfect for a variety of uses. A polyurethane block is also an ideal replacement for traditional materials such as rubber, plastic, metal, and wood.

Here are some significant advantages that polyurethane blocks can offer:


Polyurethane blocks are incredibly flexible, making them an excellent choice for projects that require precise details. While they can be formed and shaped into virtually any shape, they usually come in bars, blocks, sheets, and boards. You can expect reliable performance and superior results when using these blocks for your project.


Extreme toughness and durability are two of the critical advantages of polyurethane blocks, making them perfect for projects that need superior quality and longevity. They can withstand intense stress, harsh environmental conditions, and other factors. This makes them ideal for automotive, industrial, and construction applications since they can last for many years.

Water, Oil, and Grease Resistance

With a polyurethane block, you won’t have to worry about water damage, oil seepage, or grease accumulation. These blocks are highly resistant to water, oil, and grease, making them perfect for any project that requires protection from the elements. Since these blocks provide excellent protection, they are widely used in patios, decks, and playgrounds.

Chemical Resistance

Another terrific advantage of polyurethane blocks is their superior chemical resistance. They can withstand most acids and alkalis, making them perfect for projects where contact with corrosive substances is inevitable. They’re ideal for industrial use since they are more resistant to the effects of chemicals than other materials.

Impact and Abrasion Resistance

Polyurethane blocks are also incredibly resistant to severe impact and abrasion. This makes them ideal for heavy-duty projects, such as automotive and industrial equipment. They can withstand harsh impacts, abrasive surfaces, and other damages and wear and tear associated with daily and excessive use.

Mold Resistance

When it comes to mold, mildew, and fungi, polyurethane blocks are highly resistant. Most types of mold and fungi cannot penetrate the surface of these blocks, making them an ideal choice for projects that may be exposed to moisture or humidity. They are commonly used in outdoor furniture, decks, and patios since they aren’t susceptible to mold growth and require minimal maintenance.

Wide Resiliency Range

Another superior quality of polyurethane blocks is their resilience. Their ability to absorb shock, impact and vibration makes them an excellent choice for projects that require superior noise reduction or cushioning.

They also have remarkable elastic memory compared to other materials like plastic. They may change shape under a heavy load but always return to their original shape and size when the pressure is removed. Because of this, they are a go-to choice in making shock-absorbing products, such as vehicular and industrial parts.

Insulating Property

Whether heat, sound, or vibration, polyurethane blocks are excellent insulation materials. They are ideal for reducing noise, absorbing vibrations, and providing thermal insulation. These superior insulation properties help reduce energy costs, which is why most business buildings, houses, and other structures use them on their floors and walls to regulate temperature levels.

Polyurethane blocks are also good electrical insulators and can withstand high electrical currents and resist electricity transmission. Projects that require protection from electric shock or interference significantly benefit from these polymer materials.

Strong Bonding Properties

Polyurethane blocks have exceptional bonding properties. During processing, they can easily bond with other materials like metals, plastics, and wood. This makes them perfect for projects that require strong adhesion or a waterproof seal since they won’t easily separate from each other. They are commonly found in wheels, inserts, rollers, scrapers, squeegees, bumpers, and other rubber parts that need a robust and durable bond.

Size and Color Variations

Polyurethane blocks come in a wide range of custom sizes and colors. Whether you want small or large blocks, they can be made to the specific size you request. These polyurethanes are also highly customizable and can be dyed in any color you desire. This makes them ideal for projects that require unique shapes and colors to match your aesthetic needs.

How Are They Made?

Polyurethane blocks are produced by combining two chemical compounds: polyol and diisocyanate.

Polyol is a polymer made from different alcohol groups, while diisocyanate is an organic compound with two isocyanate groups. The chemical reaction of these two components leads to condensation, which forms polyurethane.

The production process of polyurethane blocks is relatively straightforward. It involves mixing the two compounds in a specialized machine, allowing them to react with each other, and making necessary adjustments to get the desired results. They can also be infused with different additives to improve their properties and make them more suitable for specific projects.

The mixture is then poured into a mold and left to cure. Once it solidifies, the block can be cut or shaped into various products for different purposes. The finished product then goes through quality control tests to ensure that it meets all performance specifications and industry standards.

Why is it Crucial to Get the Size Perfect for Polyurethane Blocks?

When it comes to polyurethane blocks, size does matter. The size of the blocks affects the weight and performance of the polyurethane, which are crucial in choosing the suitable material for the job.

Smaller blocks may be more lightweight and ideal for projects needing a tight fit or waterproof seal. On the other hand, larger blocks are heavier and more capable of carrying heavier loads. They also provide more significant impact and shock resistance and are perfect for applications that require superior noise reduction or cushioning.

Different applications require different sizes of polyurethane blocks. Choosing the right size for your needs is critical to ensuring a successful and durable finished product.

Fortunately, polyurethane blocks come in custom sizes and shapes, allowing for maximum versatility in design. With the right size and formulation, polyurethane blocks can be a perfect fit for any project.

How to Purchase Your Custom-Made Polyurethane Blocks

Polyurethane blocks have an extensive array of applications, including automotive and industrial components. Having the right block, size, and shape for your project can make a massive difference in performance, durability, and cost-effectiveness.

For top-quality polyurethane blocks, you can rely on experienced and detail-oriented manufacturers like Uniflex.

With over 50 years of experience in the industry, Uniflex helps you create the perfect custom-made polyurethane blocks for your project. We offer custom sizes, shapes, and colors based on your needs and preference. Just let us know the length, width, and height you need, and we’ll create blocks that meet your specifications.

At Uniflex, we use high-grade polyurethane materials, innovative formulations, and advanced processing methods to ensure the superior performance and durability of our urethane products. Our team of experts and cutting-edge technology will help you create the perfect blocks for your applications.

Contact Uniflex Today!

Polyurethane blocks offer a reliable, durable, and cost-effective solution for many applications. With their superior strength and durability, impact and shock resistance, and other exceptional physical properties, they can provide significant value and are the perfect fit for any project.

For custom-made polyurethane blocks that meet your exact needs and specifications, contact Uniflex today! We offer superior quality products, innovative solutions, and expert services to ensure excellent performance and cost-effectiveness.

Contact us today to learn more about our custom-made polyurethane blocks and get the perfect material for your project.

In 2023, the industrial machinery market has grown into a $545 billion dollar industry. Industries around the world rely on heavy manufacturing and industrial equipment. However, due to their constant use and exposure to the elements, this equipment can sustain damage like abrasion and corrosion. These mechanical issues also put the workers, customers, and properties that interact with the equipment at risk.

There are a few methods like the application of rubber or metal-based bumpers that prevent breakage and prolong the life of these types of machinery. However, polyurethane bumpers are the most practical solution. Read on to know more about polyurethane bumpers, their benefits, and where you can get them.

What Are Urethane Bumpers?

Polyurethane or urethane bumpers are pads or knobs made from the urethane synthetic compound. Urethane has the elasticity of rubber. However, it has better compression characteristics compared to plastic alternatives such as rubber. It does not tear or bounce off easily. Moreover, unlike rubber which produces a foul and sometimes toxic scent, urethane is odorless.

Urethane also has incredible durability and longevity that is relative to metal. It can accommodate huge loads of pressure without breaking. It likewise does not leave marks on surfaces and items it comes in contact with. Urethane also produces significantly less noise compared to metal.

Urethane bumpers come in many shapes and sizes. Some are threaded while others are not. They can be customized and molded to fit your particular needs too.

Round urethane bumpers have a durable and solid interior and impact-resistant rubber-like exterior. They are usually threaded. The male bumpers have a rigid stud made of metal or steel while the female bumpers have molded-in steel hex. This facilitates ease of installation and detachment. Round bumpers are used to position, guard, and alight objects moving through automated locomotive equipment.

Rectangular urethane bumpers are often reinforced with metal plating. The additional reinforcement allows for greater load and pressure accommodation. These bumpers are ideal for securing and positioning heavy-duty objects and parts. Moreover, the under-treated holes in rectangular bumpers can house a mounting bolt, thus giving the bumpers more versatility.

There are also square bumpers. These urethane bumpers are excellent at mitigating impact and vibration. They can also endure high temperatures and offer the same versatility as round and rectangular bumpers.

These urethane bumper solutions are commonly used in manufacturing plants. However, they can be used in any industrial setting.

You’ll mostly see urethane bumpers lining the edges of conveyor belts. They align and position the products as they move from one area of the assembly line to the next. They likewise prevent the products and equipment from damaging each other by absorbing the impact of collisions.

Aside from conveyor belts, urethane bumpers are also used as shock absorbers or stoppers for hydraulic cylinders, electric components, pneumatic cylinders, navy hatches, and many more applications.

Why Are They Used?

Urethane bumpers are widely used in commercial and industrial spaces. While there are alternatives like rubber and metal bumpers, engineers and factory operators prefer polyurethane bumpers for their several benefits.


Urethane bumpers are more affordable than their metallic counterparts or other mechanical solutions. Despite being cheaper, these bumpers offer equal or even greater durability, reliability, and flexibility than pricier alternatives. Some polyurethane bumpers even come in pre-manufactured molds, thus eliminating the additional cost of molding

Improved Production Speed and Efficiency

Urethane bumpers improve manufacturing speed and efficiency by smoothly and safely guiding components through the production system. They also facilitate automation and streamline workload, allowing your workers to focus on more critical aspects of the production process.

Moreover, these bumper’s low acoustic profile will mitigate noise levels in your factory and make communication among your workers easier.

Robust Composition

Polyurethanes are extremely wear-resistant and are more durable than most plastics and PVC options. They don’t easily degrade from heat and solvent exposure. Their elasticity and strength likewise give them a higher damage threshold. These characteristics make polyurethane bumpers ideal for demanding industrial processes where machinery is constantly subjected to huge amounts of load and pressure.

Ease of Installation and Maintenance

Urethane bumpers are easy to install since the pads or knobs already have built-in fasteners or adhesives. Moreover, these are simple tools that do not use springs or other complicated mechanisms that require a tedious installation procedure. By having a simple design with no moving parts, it’s likewise easier to maintain urethane bumpers.

Oil and Chemical Resistance

While the oil manufacturing industry’s revenue growth has experienced a slight dip this year, it’s still safe to say that oil is here to stay. Whether it be coming from the products themselves or from equipment grease and lubricants, oil is a common substance in a lot of industrial plants.

Oil contamination is the cause of around 70% to 80% of all hydraulic and other machinery failures. Hence, polyurethane bumpers’ oil resistance is highly beneficial. These bumpers can also withstand prolonged chemical exposure without getting unstable or severely swollen.

Corrosion Resistance

Metallic equipment in factories is always at risk of corrosion. This can disrupt manufacturing operations, lead to exorbitant repair costs, and compromise product quality. Annually, corrosion costs the manufacturing and production industry a whopping $17.6 billion in damages and losses.

Fortunately, urethane bumpers are a cost-effective preventive solution to this problem. Urethane bumpers provide one of the best corrosion resistance on the market. They will protect not only your expensive machinery but also the items and parts that go through them.

Abrasion Resistance

Unlike other forms of elastomers or metals, urethane bumpers do not easily get worn or scraped. They retain their smooth and uncompromised texture even when subjected to low temperatures or other highly abrasive conditions. Hence, they are the perfect option to use in machinery like conveyor belts where components can constantly collide with the bumpers.

How Are They Made?

Polyurethane bumpers are made from expanded urethane synthetic compound or polyurethane resin. The microcellular composition of this material contains open and closed cells. This is what allows the buffer in each bumper to have high elasticity and impact resistance.

Generally, this material is placed on a low–cost mold that shapes the bumper to fit standard industrial machinery. The OEM slots or holes are made through water jetting.

Metallic support is then added, with some urethane bumpers even containing a steel safety chain for enhanced structural integrity.

For more demanding applications, custom urethane bumpers can be made. A more rigid stud can be used for a more reliable fastening mechanism. Mount accommodations can likewise be included. Even the color of the bumper can be changed depending on your preference.

How Can You Purchase Them?

There are many producers of urethane bumpers. To get high-quality bumpers, order your polyurethane bumpers only from an established and reputable supplier like Uniflex. For over 40 years, we at Uniflex have been providing high-quality custom polymer solutions to many clients for an affordable price.

Uniflex offers a full stock line of top-tier yet affordable urethane bumpers. Whether it’s round, rectangular, or square urethane bumpers, we supply them all. Our round urethane bumpers come with reinforced steel washers, while the bolt patterns in our square bumpers are evenly spaced. Meanwhile, our rectangular bumpers have standard bolt pattern designs and sizes.

We only offer 80A urethane bumpers in either black or red. However, we can supply a standard durometer range from 40A to 95A in any color.

What’s special about our polyurethane bumpers is that we don’t use huge, bottom-molded inserts like other suppliers. Instead, we use molded-in washers, which prevent bolt pull-through and reduce cost by around 20%. Our stock lineup already has pre-manufactured molds too, so you don’t have to spend more for cast urethane molding.

Aside from driving prices down, this method allows the metal insert to be fully integrated with the urethane. Hence, you get a more durable and reliable bumper. Moreover, the average lifespan of our urethane bumpers is twice that of conventional options like rubber bumpers.

Contact Uniflex

If you’re engaged in the business of manufacturing goods or parts, your locomotive equipment may need some urethane bumpers. From the ease of installation to resistance to several issues such as abrasion, oil, chemicals, and corrosion, there are a plethora of benefits you can get from urethane bumpers.

If you’re looking for a reputable supplier that offers high-quality polyurethane bumpers, look no further than Uniflex. Contact us now at 248 560 6952 or visit our site to request a quotation.

Are you looking for cast urethane products for your specific industry? Urethane, or polyurethane, is a versatile material that is useful in many industries. Urethane can be customized in almost any shape and size to fit your unique needs. You can use custom-molded urethane repeatedly in adverse environments without significant wear or damage.

Moreover, custom-molded urethane parts are a great way to get the look you want without using a more expensive or difficult-to-work-with material. You can choose from various colors, patterns, and textures, so you can find something that suits your preference exactly.

However, finding the best-cast polyurethane products can be challenging. There are countless options, and choosing the wrong product can impact your business. That’s why we’ve put together this guide to help you find the perfect urethane for your needs. We’ll show you how custom molding is done and how to ensure you get the most value out of your purchase.

How Can You Customize Urethane?

For most industries, customizing urethane parts is an excellent way to increase efficiency and bring products to the market quickly. In addition, it’s the ideal solution when durability, weight, and safety are highly regulated.

Usually, producing custom-molded urethane varies depending on your preferences and applications. To give you an overview, we discuss the process below.

Mold Creation or Tooling

Before we start the production process, we’ll create custom molds that match your exact shape and performance requirements. Here, a machinist will create a tool path based on your specific requirements. The tool path will produce a mold for the part that, when filled with urethane, will yield an extremely precise product. Urethane custom molds are often intricate as parts become more complex.

Mass Production

When the molds are ready, they enter the production room for custom molding and mass production. Here, the production team uses different prepolymers, curatives, and ratios to create formulations that are specific to the particular job. These specially formulated mixtures (or urethane resin) are generally hand-batched or processed in automated dispensers or centrifugal mixers, depending on the specifications of the parts.

In the production room, our team uses several forming and curing methods to meet the end-use needs of customers. Here are some techniques used in the industry.

Compression Molding

Using compression molding, liquid polyurethane or millable gum is placed into enclosed multiple plates. Then, two hardened steel plates sandwich the compound using a hydraulic press. The press exerts high pressure and heat, forcing the polyurethane to fill the shape of the closed mold for curing.

This method is usually more expensive than other molding processes, but it allows for a much higher-quality end product. With a more refined outcome, this process is ideal for casting polyurethane bushings, seals, and other critical parts. However, it can be more expensive than other methods.

Open-cast Molding

Open-mold products are formed by pouring liquid polyurethane into an open mold. After pouring, the process is followed by curing the mold in an oven or heated table. This process is a fairly affordable method that produces high-quality parts.

Centrifugal Molding

Also called spin casting, centrifugal molding is a process that creates lightweight yet strong custom urethane in a single shot. As the liquid polyurethane is spun inside the mold, a centrifugal force channels liquid to fill every part of the mold, creating one solid piece. The finished product is well-suited for smaller parts that need to be bubble-free.


In this process, the liquid urethane is pushed into a mold at high pressure using a molding press. The resin conforms to the mold and hardens, shaping the material into almost any desired shape. Ideal for making bulk pieces, this method is cost-efficient and reliable while still allowing for customization.

Trimming/Secondary Machining

Trimming is a crucial step in the production of custom polyurethane products. In this step, our team removes excess urethane and creates clean, finished products. In some instances, some parts may undergo secondary machining, depending on their end-use. The parts are returned to the machine shop, where they may be milled or ground.


Inspection is the final step before shipment to customers. In this step, end products are inspected for precision and quality. If a part fails our standards, we discard it and manufacture a new one.

What Custom Urethane Products Does Uniflex Inc. Sell?

Unlike plastic or rubber, cast polyurethane materials are known for their corrosion and abrasion resistance properties. With the correct material, it can boost product performance for a diverse range of applications. Plus, they’re relatively cost-efficient and allow for fast turnaround time. Durable and reusable cast urethane products can save you valuable time, money, and replacement costs.

If you’re looking for cast polyurethane parts, Uniflex Inc. provides a variety of custom-molded urethane parts that we cast to your specifications. The use of advanced techniques, combined with our state-of-the-art equipment, allows us to utilize customized castings that can suit your needs.

Some of our custom-molded polyurethane products include the following:

  • Rollers and wheels: Polyurethane-coated wheels and rollers reduce noise and extend component life without sacrificing load ratings.
  • Protective covers: These can be used in a multitude of applications.
  • Transport fixtures: Custom-molded polyurethane pallets and buckets are excellent for transporting your product safely.
  • Body blocks: Our experts can form them to fit any automotive component perfectly.
  • Bumpers: These parts prevent damage, reduce noise, and sustain maximum durability.
  • Tool storage and kitting trays: Effective tool storage trays and cutter cover protectors reduce losses due to damage.
  • Gas line protectors: When the shield separates from the service valve, polyurethane gas line protectors can protect exposed gas lines.
  • Seals and gaskets: An excellent alternative to rubber, urethane seals and gaskets offer improved durability and functionality.
  • Bushings: When it comes to performance, polyurethane bushings are superior to rubber bushings.
  • Tubes and pipes: They are manufactured to the highest quality and precision for your specific needs.
  • Bar, block, and sheet stock: Uniflex Inc. makes high-quality polyurethane bar, block, and sheet stock that conform to your specifications.
  • Transmission mounts: A polyurethane transmission mount reduces the amount of vibration your engine produces while also improving fuel efficiency.
  • Coated bearings: It provides ideal solutions for any application where noise, vibration, or wear are concerns.
  • Casters: New-generation polyurethane casters offer a smooth and effortless rolling experience.

We provide all types of cast urethane solutions suitable for oil, gas, automotive, robotics, mining, aerospace, marine, construction, manufacturing, and metal-forming industries. If you don’t see your needs above, don’t hesitate to contact us, and we’ll get your product to you in no time.

Uniflex Inc. uses only the highest-grade materials and strictly controlled equipment, and we select polymer grades for optimum performance.

How to Order Your Custom Molded Urethane Parts!

Ordering custom urethane parts at Uniflex Inc. is convenient and easy. Simply follow the following steps.

Find Your Desired Product

The first step to ordering your custom polyurethane parts is to find your desired item in our product list. Also, you should have a particular concept or design in mind. If you don’t have one, you can talk to us, and our in-house engineers will help you out.

Fill Out Our Request Form

This is the most crucial step wherein you must provide your information and the details of your order — the product type, dimensions, color, quantity, application, and size. If you have a design in mind, or you have a picture or drawing, you can also attach it in the file section.

If you’re unsure which material or color to use, feel free to contact us, and we’ll be happy to help! We’ll give careful consideration to your specifications and the intended usage or purpose of the products.

Click Send

When complete, all you have to do is click “send.” After reviewing your request, we’ll send you a CAD drawing of your product for approval, along with a complimentary quote for the minimum order quantity (MOQ).

Once you approve the CAD drawing and agree to the MOQ, we’ll send you an acknowledgment for the order and begin production. You’ll receive an email when we ship it out, so you can track its location at any given time.

Contact Uniflex Today

Cast polyurethane products are a high-value and cost-efficient solution for applications across multiple industries. These components are lightweight, durable, non-corrosive, and reflect superior quality.

If you want to learn more about customized urethane products or purchase them for your project, contact Uniflex Inc. today. We’re the nation’s leader in providing quality polyurethane and rubber solutions for use in any sector. One of our specialties is mold design, tool construction, and complete custom machining capabilities. Needless to say, we have all your needs covered. We utilize state-of-the-art design and manufacturing technologies to deliver a product second to none.

Urethane seals are among the most versatile and durable components used in many industries today. These polymer-based seals are recognized for their outstanding resistance to hydrocarbon-based fluids, acids and chemicals, hydraulic fluids, water, and non-corrosive salts. In short, they provide reliable performance in some of the most demanding industrial applications.

Urethane (or polyurethane) seals are elastomeric materials used in hydraulic components, such as pump shaft seals, cylinder pistons, and rod seals. Manufacturers like Uniflex Inc. cast them into billets or molds to create precision seals for various applications.

If you doubt using polyurethane seals or need more inspiration, don’t worry! We have compiled the countless benefits of cast urethane seals and how to find the best one for your needs. Let’s discuss them in detail below!

Why Use Urethane Seals?

Used in everything from oil and gas production to aerospace and medicine, the need for cast polyurethane seals is ever-growing — thanks to their affordability, durability, and maximum sealing properties. Moreover, they are resistant to many environmental factors, offer excellent vibration resistance, and can be molded into various physical forms to meet clients’ stringent specifications.

Seals made of polyurethane are more durable than rubber while still maintaining similar elastic properties. With superior abrasion resistance, chemical resistance, and rebound, polyurethane seals can effectively replace rubber in cases where the stresses and pressures are too demanding to handle. For example, in the automotive industry, polyurethane seals are fitted onto the face of a bearing to prevent oil leakage — even in extreme heat. They can also be used as gaskets for valves and oil pumps.

Superior to rubber, urethane possesses unrelenting resilience and flexibility. They’re high-pressure seals that can live up to a long service life through their chemical resistance and long-lasting strength.

Overall, cast urethane seals are an excellent option for businesses looking to prevent leakage, increase product longevity, and reduce costs related to maintenance. They’re also a good choice for businesses that need to protect their products from the elements. With urethane seals, you’ll never have to worry about corrosion or rusting again. In short, urethane seals are a high-value investment for your company, no matter the application.

Advantages of Using Polyurethane Seals

Besides durability and longevity, there are many reasons why you should utilize or switch to cast urethane seals. For more inspiration, take a look below!

Extremely Versatile

Urethane seals are extremely versatile. These seals can be used in various applications, from industrial to residential and commercial settings and processes. They are also critical components in the production of medical equipment, vehicles, machinery, and marine equipment. Seal manufacturers can produce varieties of tight tolerances and characteristics to suit almost any application.

Maximum Sealing Properties

If you’re looking for tight tolerance seals, products made of urethane can be the perfect option. Used in everything from automotive and aerospace industries to chemical processing, urethane seals boast minimal leakage, which makes them ideal for use in hydraulic systems. They can prevent leakage at high pressure while allowing enough room for expansion.

Hydraulic fluid under pressure easily overcomes inferior technology, especially when internal gaps and clearances aren’t tight. Urethane seals are designed to change shape under pressure, which allows them to form a tight seal without leakage. However, when the pressure relaxes, they return to their original shape.

Abrasion Resistant

Polyurethane seals are designed with tight tolerances to resist shearing and tearing, meaning they can withstand abrasion without losing their ability to function properly. They won’t break down or become less effective over time due to abrasion. Thus, they’re necessary for heavy-duty applications, where their ability to withstand high amounts of friction is crucial. They’re an ideal choice for any application that requires protection against abrasion due to their ability to withstand extreme weather conditions.

In addition, cast polyurethane seals are also easy to maintain, which makes them ideal for environments where there’s a high volume of foot traffic or other sources of dirt and grime.

Chemical Resistant

Urethane seals are one of the most chemically resistant materials available for use across multiple industries. They maintain stability even when exposed to oil, fuel, water, solvents, and other industrial chemicals.

Polyurethane seals are chemical resistant because they’re made of a synthetic material that can withstand chemicals and other substances. They don’t break down or corrode when exposed to acids and alkalis, and they even resist attack by many organic solvents. This makes them ideal for use in areas where chemicals are present, such as manufacturing plants, oil refineries, and chemical plants.


Known for their flexibility, polyurethane seals can be custom-molded to fit a variety of products and industrial processes. This means that you can get the exact fit you want for your product, whether it’s a small space or an unusually-shaped hole in your machinery.

The seals can be manufactured in various flexible and rigid shapes, with either smooth or textured surfaces. Custom urethane seals are also available in various hardnesses and thicknesses, depending on the application. No matter how complex your needs are, there are always polyurethane seals that will conform to your requirements!


While custom urethane seals are more expensive than traditional rubber or plastic seals, they can be cost-efficient when considering their durability and low maintenance. Simply put, polyurethane seals are more durable and less likely to fail than other types of industrial seals, which means they will last longer. If you want a product that doesn’t need consistent repair and replacement, using urethane seals could be cost-effective in the long run for your company.

Fast Turnaround Times

As a business, you want to bring your products to market as quickly as possible. Whether you need these seals for your products or on your machinery to maintain continued operation, urethane seals deliver a fast solution to minimize equipment downtime. Due to the automation of processes, they can be manufactured in bulk in as little as a day.

Suppliers like Uniflex Inc. use high-tech machinery and techniques for production, which allows them to produce precise, large quantities quickly. By having your needs met promptly, you can get your product marketed and sold in record time.

Withstand Extreme Conditions

Rubber and plastic seals can melt when exposed to high temperatures. However, that’s not the case for polyurethane shaft seals. They are designed to tolerate high temperatures and pressure, making them perfect for applications requiring extreme heat tolerances — like, for example, gaskets and seals for engines. Depending on their hardness (durometer rating), cast urethane products can tolerate heat up to 400℉.

In addition, custom polyurethane seals don’t break, even in cold climates. They can operate at high performance to temperatures as low as -80℉. In short, these seals have high resistance to cold cracking that rivals other seal materials.

Low Compression Set

One of the best benefits of urethane seals is their low compression set. Urethanes are known for this quality: they don’t lose their shape or size over time. This is because urethanes are resistant to changes in temperature and pressure, unlike other materials such as rubber or plastic. They’re ideal for applications where the seal must withstand a great deal of pressure, such as in hydraulic systems.

Purchase Urethane Seals Today

Regardless of your industry, you can choose urethane seals to boost efficiency and reduce replacement costs. Whether you need it to seal engines, hydraulic fluid, or your bulk material transfer systems, polyurethane seals provide unique sealing characteristics suited to nearly every application.

At Uniflex Inc., we manufacture and supply gaskets and seals that are manufactured to tight tolerances and with high quality, such as pipe seals, urethane shaft seals, and urethane spray nozzles. We consistently produce world-class custom seals by working with the leading manufacturers of high-quality urethane materials.

As a trusted partner, we have the resources, experience, and commitment to meet your high-volume demands in record time and with maximum accuracy. We custom-mold exceptional products that require careful consideration and thickness tolerance at competitive prices.

To start your purchase, simply fill out our request form with detailed information about your order. You must describe in complete detail your exact design. If possible, attach an image or a drawing of your desired product. If you’re unsure of your specifications, reach out to us, and our friendly team will be happy to assist with your needs.

Contact Uniflex

If you want to learn more about polyurethane seals or discuss your options, contact us at Uniflex Inc. We create and customize all kinds of cast urethane parts and solutions. Our engineers are prepared to answer your questions and help make the product you envision a reality!