Share this page on

Polyurethane Molding Manufacturers and Companies

IQS Directory provides a comprehensive list of polyurethane molding companies and suppliers. Use our website to review and source top polyurethane molding companies with roll over ads and detailed product descriptions. Find polyurethane molding companies that can design, engineer, and provide polyurethane molding services to your companies specifications. Then contact the polyurethane molding companies through our quick and easy request for quote form. Website links, company profile, locations, phone, product videos and product information is provided for each company. Access customer reviews and keep up to date with product news articles. Whether you are looking for polyurethane molding services, urethane molding parts, or urethane molding castings, this is the resource for you.

Related Categories

Gallagher Corporation, an ISO 9001:2000 certified facility, specializes in custom polyurethane molding, designing, engineering, mold making, prototyping, bonding to metal, materials engineering, as well as short- and long-run production since 1965. Serving every industry, parts range from 1 oz. - 2,000 lbs. Website has extensive, free design guide. Rush quotes available.
Read Reviews
A manufacturer of custom polyurethane molding, American Urethane serves a variety of industries, including chain conveyor equipment, material-handling, power tools, computers and medical. As a molding company, the materials offered have expansive applications as well as a longer service life. For a quote or additional information, visit our website or give us a call.
Read Reviews
Unicast is a full-service polyurethane molding company and machine shop. They offer quality and long lasting engineered parts. Our casting machines ensure blending of standard urethane blends. We offer custom made parts in addition to their extensive line of standard parts to ensure that every specification and requirement can be met. Visit our website or call for a quote today.
Read Reviews
FallLine has been a manufacturer of custom polyurethane molding products for various industries since 1981. We offer a wide range of proven materials ranging from 40A - 80D, as well as the capability to formulate materials to meet specific needs. Our knowledgeable staff, on-site design team and machine shop are dedicated to offering excellent customer service and rapid turnaround times.
Read Reviews
As a solutions oriented company we are here to find a product that is perfect for your application. We have manufacturing experience dating back to 1982 and over the years we have created the highest quality polyurethane molding process in our industry. We are a committed manufacturer who will work with you every step of the way.
Read Reviews
We utilize the right tools for handling your tasks. We manufacture polyurethane molding solutions here in the USA. Our products are ideal substitutes for rubber, metal and other types of plastics due to the polyurethanes rigid but lightweight design. These units are resistant to oil, acid, vibration, abuse, shock and other forms of chemicals. If you have time sensitive projects then we can help with our fast turnaround and we offer a full range of stock products!
Read Reviews
Western Roller Corporation has been experts in polyurethane molding solutions since 1972. WRC cast and molded parts offer superior properties and low set-up cost for small custom runs to large quantity production. Want tough, high performance, non-marking, high traction material? Call us for exactly what you need we can provide custom shapes of all kinds! We never compromise on quality.
Read Reviews
More Polyurethane Molding Companies More Polyurethane Molding Companies
Industry Information

Health Benefits of Molded Polyurethane Cushions

Molded polyurethane is used for a variety of purposes. Molded polyurethane has a surprising mixture of strength and flexibility. It is water-resistant, and stands up well to contaminants. This is why the product is often used in the medical industry and other bacterial-conscious industries. 

Another perfect application for this form of urethane is cushioning for a variety of purposes. The flexibility and cushioning power of the urethane makes it ideal for use as a cushion, and the water-resistant properties make it ideal for use in outdoor environments as well as for sports and swimming applications. Cushions can also be used in the medical industry as therapy aids, to help reduce paint, add comfort, and increase the endurance of the patients during exercise and therapy. Injection molded cushion foam is the most common form of cushioning used for high intensity purposes and exercise props today. A molded urethane cushion can support hundreds of pounds of weight and will spring back to its original dimensions every time. The urethane allows the unique properties of providing form-supporting and fitting depressions that provide comfortable support no matter the use of the cushion.

No matter what industry you are in, the beneficial properties of urethane cushions cannot be ignored. For such a versatile cushion material, urethane is surprisingly cost-effective. Urethane is also resistant to UV exposure and chemical exposure, making it as durable as it is flexible.

Polyurethane Molding

Valued primarily for its uses in rigid and flexible "memory" foams, polyurethane is extremely useful in solid plastic forms as well such as polyurethane rods, urethane sheets, urethane bushings and urethane wheels. Polyurethane moldings are characterized by their high performance; they combine many of the desirable qualities of plastic, rubber and metal with longer service life than plastics, higher impact resistance than rubber, elastic memory, noise reduction, heat and chemical resistance and many other properties. In addition, polyurethane molded parts require little to no secondary finishing. Urethane manufacturers fabricate diverse polyurethane moldings, including a wide variety of pneumatic seals, press tool blocks, electrical potting compounds, conveyor bushings, polyurethane belts, urethane bumpers, bowling balls and parts for a broad spectrum of industries such as construction, automotive, food processing, industrial manufacturing, engineering and athletic equipment. Polyurethane also exhibits excellent adhesion and can easily form strong bonds with most metals and plastics.

When it comes to castable urethane, the raw materials of polyurethane exist in a liquid state, which allows for easy mixing and measuring in preparation for molding, which may be one of two processes: open urethane casting or closed casting. Before the polyurethane molding process begins, both a master pattern and a silicone mold are created. Once molds are formed, the raw materials of polyurethane react with one another to form a pre-polymer, and then during the urethane molding process a curative is introduced to the pre-polymer in order to complete the polymeric transition. Accelerated by heat and/or pressure, the mixture is poured (during which it is mixed and potentially even colorized) into a mold cavity and cured to form the final polymer. During open polyurethane molding, the pre-polymer and curative are heated and mixed together, poured into an open cavity and cured without the application of pressure. During closed polyurethane molding processes such as injection molding, the pre-polymer and curative are heated and mixed together, then injected into the closed cavity through small holes. An example of a type of polyurethane molding would be polyurethane foam molding, which is commonly used by polyurethane manufacturers to make soundproof insulation. The result is a product with excellent tension and compression properties as well as flexibility and a very favorable coefficient of friction. Urethane products are also highly stable, which allows them to maintain their hardness over the entire course of their operating lives.

The polyurethane molding process is actually a subset of another molding process known as room temperature vulcanization, which is sometimes abbreviated as RTV. For this process, the three most commonly used materials are silicone, wax and polyurethanes. The benefits of this process for polyurethane molding include a high level of detail and an exceptional surface finish. In addition, this process can be used on polyurethane because of its hardness range as well as its ability to withstand high heat of up to 220ยบ F. RTV is a rapid manufacturing and a rapid prototyping chemical process that involves converting materials, such as polyurethane, into more durable materials by means of the addition of curatives, such as sulfur. As a slow vulcanizing agent, sulfur is typically used in combination with other materials in order to increase the stability of the final molded product. In addition, as suggested by the name, the materials that undergo this vulcanization process, including polyurethane, are cured at room temperature. This method of polyurethane molding is most effectively utilized when the manufacturer desires a short run of parts that can closely match the physical appearance of previously produced parts or match the functional capabilities of previously produced parts or materials.

Although all elastomers maintain strength and versatility in many industrial applications, polyurethane elastomers possess several advantages over other elastomers and materials. Many of these advantages have been demonstrated in laboratory tests. Polyurethane has higher abrasion, cut, tear, oil, oxygen, ozone and radiation resistance, greater load bearing ability, broader hardness range and better colorability than rubber; urethane even showed better wear resistance than some kinds of steel. Polyurethane responds so well to compression loading that it can be used to make tires for trucks. Its resistance to petrochemicals is also much better than most rubber materials, and it is also highly oxidation-resistant. Polyurethane has thick section molding and low pressure tooling capabilities and a castable nature. As compared to metal, polyurethane has better noise reduction and resilience, greater abrasion, corrosion and impact resistance, more flexibility and is less costly to fabricate. Polyurethane is also lightweight, easily moldable, non-conductive and non-sparking. Molded urethane serves better than regular plastic in many applications, as it has higher impact, low temperature, cold flow, radiation and abrasion resistance, better elastic memory and noise reduction capabilities, greater resilience and provides lower cost tooling. In addition, polyurethane molding, as a process, offers the benefits of high accuracy, diverse part size capabilities, a fast turn-around and the ability to form parts with undercuts as well as parts without drafts. Also, the cost of polyurethane moulding is on par with the cost of rubber and typical polymer molding, giving urethane an economic advantage as well.



Polyurethane Molding
Polyurethane Molding
Polyurethane Molding - FallLine Corporation
Polyurethane Molding - FallLine Corporation


Polyurethane Molding Types

•    Castable urethanes are elastomers that contain urethane carbamate links, are processed in liquid form, and are extremely well-suited for casting.
•    Molded urethane technically referred to as molded polyurethane (or PU), is an elastic polymer, or elastomer, containing urethane carbamate links.
•    Polyurethane belts are formed from an elastic polymer, or elastomer, that contains urethane carbamate links.
•    Polyurethane manufacturers fabricate molded urethane to produce many different products.
•    Polyurethane rods, or bars, are straight, uniform polyurethane products that are often circular or rectangular, but may have many cross sections in different shapes.
•    Urethane bumpers are protective parts that function to absorb shock or to impede contact.
•    Urethane bushings are types of bearings used in automotive production as shock absorbers that maintain alignment and suspension components.
•    Urethane casting, technically referred to as polyurethane (or PU), is an elastic polymer, or elastomer, containing urethane carbamate links.
•    Urethane manufacturers fabricate molded urethane to produce many different products.
•    Urethane molding, sometimes called polyurethane molding, is an elastic polymer that contains urethane carbamate links.
•    Urethane sheets, technically referred to as polyurethane (or PU) sheets, are durable, long-lasting sheets that are constructed from an elastic polymer, or elastomer, containing urethane carbamate links.
•    Urethane wheels are fabricated from molded urethane, technically referred to as polyurethane (or PU), which is an elastic polymer, or elastomer, containing urethane carbamate links.


Polyurethane Molding Terms

Additive - Substance added to a polymer to increase the effectiveness, but not the strength, of the polymer. Examples of additives include flame-retardants, anti-static urethane casting compounds, molded urethane pigments and urethane molding lubricants.
 
Bloom - A discoloration of the molded urethane surface of a polyurethane product-not to be confused with dust from external sources-caused by the migration of a liquid or solid to the surface.
 
Blowing Agent - Foam producing substance (e.g. carbon dioxide).
 
Breaking Strength - The point of tension at which polyurethane will rupture in urethane molding process.
 
Copolymer - A polymer made up of two monomers in which each repeating unit in the chain consists of molded urethane units of both monomers.
 
Crosslinking - The chemical linkage of polymeric chains that results in a three-dimensional network of polymers. Crosslinked polymers possess greater strength and durability than linear polymers do.
 
Cycle Time - The amount of time necessary to complete a urethane molding cycle from urethane mold preparation to demolding.
 
Dam - A device placed within a urethane mold that prevents the flow of material into cavities of the mold in order to reduce, alter or eliminate a part of the cast for which the urethane mold was initially designed.
 
Demold Time - The amount of time that passes between the dispensation of liquid components into the urethane mold and the removal of the end molded urethane product.
 
Diisocyanates - Chemicals in liquid or crystalline form used in the production of polyurethane adhesives, coatings and urethane casting foam.

Elastomer - A material capable of returning to its initial length after being stretched at room temperature up to twice its original length.
 
Hydroxyl
- An ion, composed of one oxygen atom and one hydrogen atom, used in bases, acids and alcohols.
 
Hysteresis - Energy loss in the form of heat that results from the deformation of elastomeric material caused by the application of urethane molding stress.
 
Micro Molding - The forming of millimeter- or micron-sized parts through the urethane molding process. Micro molded parts, for which tolerances must be extremely tight, are increasingly in demand by biomedical, pharmaceutical, fiber-optic, electronics, telecommunications, office-automation, computer and automotive industries.
 
Monomer - The most basic polymeric unit, usually a liquid or a gas, consisting of molecules from the same organic substance.

Polymer - Two or more monomers bonded together in a chain through a chemical reaction. 

Polymerization - The urethane molding process in which a chemical reaction links together monomers to form a polymer.
 
Polyol - A chemical compound composed of two or more hydroxyl groups that, in conjunction with diisocyanate, are used in the urethane molding production of polyurethane foam.
 
Resilience - The comparison of the amount of energy needed to create an elastic deformation and the amount of energy needed to recover from such a deformation.
 
Thermoplastic - Category of plastics that have the potential to soften and reform when heated, hardening again when cooled. During the urethane molding process, the physical makeup of the thermoplastic does not change.
 
Thermoset
- Category of plastics that cannot be reformed upon reheating. Thermosets remain permanently hard.







Move to Top