Film & Sheet Products

Aliphatic urethane is inherently light stable, resistant to ultraviolet light degradation, and provides excellent optical clarity. It is used as an optical interlayer, providing strength as a lamination adhesive in encapsulated glass and security glazing, to name a few applications. It is often a more expensive product.

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Aromatic urethane is a strong, general-purpose resin originally developed as synthetic rubber. It is generally less expensive than aliphatic urethanes, but it is susceptible to UV light degradation, which tends to yellow the polymer without affecting physical properties.

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Polyether urethane provides a softer "feel" or drape than polyester, with better moisture vapor transmission rates and superior low temperature properties. It is also inherently stable when exposed to high humidity, and polyethers are naturally more fungus resistant.

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Polyester urethane offers greater toughness (i.e. abrasion resistance, tensile/tear strength) at a given durometer than polyether. It is more resistant to fuels, and offers better aging (oxidation) resistance. However, polyester urethanes will eventually break down when exposed to conditions of high humidity.

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TPU offers a broad range of high-performance properties and characteristics, making it the material of choice for many ‘can’t fail’ applications. It is inherently strong, tough, and easy to work with, and unlike vinyl, it contains no plasticizers, so it won’t become brittle or lose its performance properties over time.

TPU compounds possess a combination of properties not available in any other thermoplastic material. When two of these properties are needed in an application, such as low temperature flexibility and soft durometer, TPU will usually outperform any other material. (View properties comparison chart)

Stevens Urethane offers a full range of thermoplastic polyurethane, including aromatic and aliphatic materials in both polyester and polyether. Film and sheet are available in thicknesses from .001" (25.4 microns) to .125" (3.177mm), and in widths from 6" (152mm). A variety of colors, opacities and surface textures are available.

Standard grades of Stevens Urethane film and sheet satisfy most application requirements. Other grades are available or can be custom compounded to meet specific application needs, including films rated for potable water contact and UL Listed flame-resistance, as well as food and medical requirements. Examples of applications already benefitting from Stevens Urethane.

Click on the appropriate Product Selector Guide for a list of products and specifications, and links to data sheets.

Aromatic Sheet

Blown Film

Flame Retardant

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