Characteristics of Hose Elastomers
Characteristics of Hose Elastomers
Tube and cover elastomers may occasionally be upgraded to take advantage of improved materials and technology.
COMMON NAME Chemical Name |
NEOPRENE Poly-Chloroprene |
NITRILE Acrylonitrile & Butadiene |
HYPALON™ Chlorosulfonated Polyethylene |
EPDM Ethylene Propylene Diene |
CPE Chlorinated Polyethylene |
POLYESTER Polyamide Resin |
TEFLON™ Fluorinated Thermoplastic |
---|---|---|---|---|---|---|---|
Common Designation |
CR | NBR | CSM | EPDM | CPE | PE-E | PTFE |
Flame Resistance |
Very Good | Poor | Good | Poor | Good | Poor | Good |
Petroleum Base Oils |
Good | Excellent | Very Good | Poor | Very Good | Very Good | Excellent |
Diesel Fuel | Fair to Excellent |
Excellent | Good | Poor | Very Good | Very Good | Excellent |
Resistance to Gas Permeation |
Good | Good | Good to Excellent |
Fair to Good | Good | Good | Good to Excellent |
Weather | Good to Excellent |
Fair to Good | Very Good | Excellent | Good | Excellent | Excellent |
Ozone | Good to Excellent |
Poor for Tube Good for Cover |
Very Good | Excellent | Good | Good | Excellent |
Heat | Good | Good | Very Good | Excellent | Excellent | Good | Excellent |
Low Temperature | Fair to Good | Poor to Fair | Poor | Good to Excellent |
Good | Good | Excellent |
Water – Oil Emulsions |
Excellent | Excellent | Good | Poor | Excellent | Very Good | Excellent |
Water/Glycol Emulsions |
Excellent | Excellent | Excellent | Excellent | Excellent | Very Good | Excellent |
Phosphate Esters to 82°C (180°F) |
Fair (For Cover) |
Poor | Excellent (not for Aerospace types) |
Very Good | Very Good | Good | Excellent |
Phosphate Ester Base Emulsions |
Fair (For Cover) |
Poor | Excellent (not for Aerospace types) |
Very Good | Very Good | Good | Excellent |
HYPALON™ and TEFLON™ are Trademarks of DUPONT