Neoprene
(Chloroprene)

One of the earliest of the synthetic materials to be developed as an oil-resistant substitute for Natural Rubber, Neoprene is a homopolymer of chloroprene (chlorobutadiene).


Trade Name(s):

Neoprene

DuPont Performance Elastomers

Baypren

Bayer

ASTM D1418 Designation

CR

Standard Colour

Black

Description

One of the earliest of the synthetic materials to be developed as an oil-resistant substitute for Natural Rubber, Neoprene is a homopolymer of chloroprene (chlorobutadiene).

Key Uses(S):

Numerous component uses in the transportation field. Recommended for exposure to weathering. Preferred sealing material for refrigeration industry.

Temperature Range:

Standard Compound: -40°C (-40°F) to 121°C (250°F)

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: good resistance to petroleum oils; good resistance to ozone, sunlight and oxygen ageing; relatively low compression set; good resilience; outstanding physical toughness; and reasonable production cost.

It offers a broad temperature range and is suitable for many seal applications for refrigerants like Freon® and ammonia. (R12, R13, R21, R22, R113, R114, R115, R134A), as well as silicone oils, water, ozone, vegetable oils, alcohols, and low-pressure oxygen.

Limitations

Neoprene is generally attacked by strong oxidising 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 O-Rings of today.

Please note: This Material Data Sheet section is to be used as a professional guide only. Eastern Seals (UK) Ltd may source their products from a variety of Quality Approved Suppliers and the data shown should not be relied upon by any purchaser without verification of material source.

 

ES REF
Colour
Temp Range
Shore
Notes
Data Sheet
NP50 BLACK -40°C to +121°C 50 General purpose Neoprene 50 shore.
NP70 BLACK -35°C to +110°C 70 General purpose Neoprene 70 shore.
NP70 FDA BLACK -40°C to +121°C 70 Food Quality. Complies With FDA Regulation 21 CFR177.2600

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