Custom Molded Urethane Products Review

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Molded Urethane
List of Molded Urethane Part Manufacturers with Links, Information and Free RFQs. Find Custom Urethane Molded Parts Today!

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Custom Molded Urethane Products Review

Synthetics, Plastic Injection Molding Design and Manufacturing
Custom Molded Urethane Parts Manufacturing

PSI Urethanes, Inc. Since 1966, PSI Urethanes, Inc., has been the cast urethane specialist that companies around the world have depended on to gain all of the advantages of urethane for a wide range of parts. The formula for our success is based on the fact that we determine our customers' needs for design, delivery, and price - and we meet those needs better than any other cast urethane product manufacturer. In addition, our extensive stock ensures rapid turn-around for your polyurethane parts requirements. Plus, our discounts help ensure our customers gain all of the benefits of urethane at the best prices.- www.psiurethanes.com

Urethane may be molded into virtually any shape, size and geometry. Urethane is an excellent material which exhibits high abrasion resistance and typically outperforms rubber, plastic or metal in friction and impact environments. Urethane exhibits has very good chemical resistance to most solvents, chemicals, aliphatic based oils, and greases. Selected Urethane formulations have excellent dimensional stability over a broad range of temperatures and pressures. Urethanes are also resistance to compression and tension set . Selected Urethane compounds have very good electrical properties , such as dielectric strength, dielectric constant, and resistivity. Urethane is commonly used as a insulating material.

Molded Urethane Parts

Classic mold design or plastic injection molding rules apply as urethane exhibits similar mold-ability properties. See Plastic Injection Molding.

The following are common custom molded urethane products:

Gears, urethane facilitates high impact, chemical, service abrasion resistance
Rollers and rolls
Shock absorbing pads, bumpers and similar parts
Rings, tubes
Sheaves and pulleys
Paper industry products
Consumer products

Urethane (Ethyl carbamate) is a substance first prepared in the nineteenth century. Structurally it is an ester of carbamic acid, i. e., ethyl carbamate. Urethane itself is: (NH2-COOC2H5) and is not a component of polyurethanes.

Urethane is not acutely toxic to humans, as shown by its use as a medicine. Acute toxicity studies show that the lowest fatal dose in rats, mice, and rabbits equals 1.2 grams/kg. or more. When urethane was used medicinally, about 50 percent of the patients exhibited nausea and vomiting, and long time use led to gastroenteric hemorrhages (USEPA 1979). The compound has almost no odor and a cooling, saline, bitter taste.

Studies with rats, mice, and hamsters has shown that urethane will cause cancer when it is administered orally, injected, or applied to the skin, but no adequate studies of urethane-caused cancer in humans has been reported (IARC,1974). The International Agency for Research on Cancer has stated that urethane can be “reasonably anticipated to be a human carcinogen based on sufficient evidence of carcinogenicity in experimental animals.” This evaluation has led to the following US regulatory actions:

NESHAP: Listed as a Hazardous Air Pollutant (HAP)
Comprehensive Environmental Response, Compensation, and Liability Act: Reportable Quantity (RQ) = 100 lb
Emergency Planning and Community Right-To-Know Act, EPA’s Toxics Release Inventory: A listed substance subject to RCRA reporting requirements
RCRA Listed Hazardous Waste: substance - U238

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