Dureflex brand polyurethane film may offer better chemical resistance in comparison to flexible PVC. However, several factors can impact performance, so each potential application must be evaluated before a formulation is selected. Factors that influence chemical resistance include full immersion or intermittent contact with various agents, temperature, gauge, pH level, molecular weight, hardness, and whether the film is a polyester- or polyether-based product.

Polyester- and polyether-based Dureflex polyurethane film provide excellent resistance to the following:

• Polyester polyurethanes*
  • Sulfuric acid (20%); ASTM fuel A; oil #1, #2 and #3; butane; dioctyl phthalate; ethylene glycol; gasoline (100% octane); kerosene; turpentine; saturated calcium chloride solution; Freon 12; hydrogen sulfide (5%); Mr. Clean®; saturated sodium chloride solution; and synthetic perspiration
• Polyether polyurethanes*
  • Acetic acid (5%); ASTM fuel A; oil #1 and #2; butane; ethylene glycol; kerosene; detergent oil 20W; non-detergent oil 20W; transmission oil 20W; turpentine; Clorox® (5%); saturated calcium chloride solution; Freon 12; hydrogen sulfide (5%); saturated sodium chloride solution; synthetic perspiration; Tide® detergent (1%); and water

Applications include: seals; gaskets; flexible hoses or chutes; belting; hazardous material gear; tank and pipe linings; settling pond linings; and glove box ports.