Materials of Construction:

Pure Gum Rubber:

Excellent resilience and rebound elasticity with high tensile strength. Excellent resistance to tear and abrasion. Effective operating range from -40ºF to 180ºF.

Neoprene:

Resists alkalis, inorganic acids, and salt solutions. Flame-retardant, as well as abrasion and weather resistant. Good resistance to animal and vegetable oils; moderate resistance to petroleum oils. Effective operating range from -20ºF to 225ºF.

Chlorobutyl:

Lowest permeability, very good resistance to water, heat, fats, ozone, alkalis, sunlight, abrasion, and oxygenated solvents. Effective operating range from -30ºF to 300ºF with brief allowable excursions to 350ºF.

Hypalon®:

Offers superior weather resistance, flame retardant, good abrasion resistance, and excellent resistance to acids, alkalis, and oxidation. Effective operating range from -10ºF to 250ºF.

Buna-N (Nitrile):

Good resistance to mineral and vegetable oils, greases, hydrocarbon solvents, dilute acids, and alkalis. Effective operating range from -10ºF to 210ºF.

EPDM:

Outstanding water, vapor, and weather resistance. Good resistance to heat, ozone, alkalis, sunlight, and oxygenated solvents. Ideal for outdoor service. Do not use with petroleum oil service. Good general purpose elastomer with an effective operating range from -30ºF to 350ºF.

FDA Food-Grade Service:

Several white and black elastomers meet FDA requirements and can be used in direct contact with food, beverage, and pharmaceutical products.

Viton®:

Excellent resistance to aggressive chemicals, solvents, and halogenated hydrocarbons. Viton® TBR-S provides excellent resistance to steam, aqueous acids, amines and concentrated caustics/bases/alkalies. Viton® ETP-S offers the most universal chemical resistance and has excellent flexibility at low temperatures. Effective operating range from -10ºF to 400ºF.

Reinforcements:

Polyester, Nylon, Kevlar®, fiberglass, and steel. Temperature rating is dependent on both elastomer and reinforcements.