Description: Zetpol is a product of the hydrogenation of Nitrile, resulting in varying degrees of saturation of the polymeric chain, with accompanying varying degrees of enhanced physical strength and chemical resistance properties.

Temperature Range: Standard Compound: 20^oF to +257^oF (Dry Heat Only)

Hardness (Shore A): 75.

Features: In the areas of heat resistance, tensile strength, abrasion resistance, and oil additive resistance, Zetpol exhibits improved performance characteristics over nonhydrogenated Nitrile, while showing about five times higher sour gasoline and ozone resistances. Tensile strength at 77 ^oF has been increased from 2,900 psi for Nitrile, to 4,350 psi for Zetpol.

Various Zetpol compounds have been created with performance characteristics rivaling those of other polymers, such as Fluorocarbon, Polyacrylate, Ethylene Propylene and Neoprene. Zetpol's ozone and fuel resistance compares favorably with Fluorocarbon. Its excellent heat and oil resistance, rivals that of Polyacrylate. Its resistance to steam (to 347 ^oF) is close to that of Ethylene Propylene: Its high abrasion and heat resistance enables it to replace Neoprene in high temperature belts. In most cases, the tensile strength of Zetpol is unsurpassed.

Limitations: Like Nitrile, increasing acrylonitrile content improves oil resistance at a cost of reduced low temperature performance. Also, as the degree of hydrogenation increases, with improved heat resistance comes Zetpol's tendency to cold flow or"creep". Increased hydrogenation further,brings decreased elasticity at low temperatures.

Like Nitrile, Zetpol is not recommended for exposure to ethers, esters, ketones, or chlorinated hydrocarbons.