Neoprene
Description: One of the earliest of the synthetic materials
to be developed as an oilresistant substitute for Natural
Rubber, Neoprene is a homopolymer of chloroprene (chlorobutadiene).
Temperature Range: Standard Compound: 45 ºF to +250ºF.
(Dry Heat Only)
Hardness (Shore A): 40 to 90.
Features: Neoprene can be used in innumerable sealing applications,
due to its broad base of such desirable working properties
as: moderate resistance to petroleum oils; good resistance
to ozone, sunlight and oxygen aging; relatively low compression
set; good resilience; and reasonable production cost.
Due to its excellent resistance to Freonl~l and Ammonia,
Neoprene is also widely accepted as a preferred material for
refrigeration seals.
Limitations: Neoprene is generally attacked by strong oxidizing
acids; esters; ketones; chlorinated, aromatic and nitro hydrocarbons.
Because Nitrile is economically competitive with Neoprene,
and generally has superior performance characteristics in
most situations, it has largely replaced Neoprene in the Orings
of today.
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