What is the best material of rubber valve stems for cars?
The best quality rubber valve stems for cars is EPDM rubber, brass stem and brass core.
EPDM is a copolymer of ethylene, propylene and a small amount of non-conjugated diene. It is a kind of ethylene propylene rubber. It is represented by EPDM (Ethylene Propylene Diene Monomer) because its main chain is made of chemically stable saturated hydrocarbons. It contains only unsaturated double bonds in the side chain, so it has excellent aging resistance such as ozone resistance, heat resistance, and weather resistance. It can be widely used in automotive parts, construction waterproof materials, wire and cable sheaths, heat-resistant hoses, tapes , Automotive seals and other fields.
Apart from EPDM rubber and brass stem, we also can supply Natural rubber and brass stem valve stems. This kind of material also very good. Hot selling in Euro market, North America, South America market......
Additional, we also have more economical material: Natural rubber and Aluminum stem.
All the quality valve stem have one guaranteed since received the goods. And free samples available before.
Any inquiry, welcome here and we will try our best to satisfy you with competitive price.
