Nitrile Rubber  (NBR)
NBR is  widely used in  industry area due to its low  price but its good oil, fuel, chemical resistance. It is used in the automotive and aeronautical industry to make fuel and oil handling hoses, seals, and grommets.                                                                                                                                                                                                                                                                                           NBR is generally resistant to aliphatic hydrocarbons. NBR, like natural rubber, can be attacked by ozone, aromatic hydrocarbons, ketones, esters and aldehydes.it is more resistant than natural rubber  to oils, and acids, but has inferior strength and flexibility.                                                                                                                                                                                                          Common compound: temperature from -20°C  ~ 100°C  , Special compound from -40°C ~120°C .

Ethylene Propylene Rubber   (EPDM)
EPDM exhibits satisfactory compatibility with fireproof hydraulic fluids, ketones, hot and cold water, and alkalis, and unsatisfactory compatibility with most oils, gasoline, kerosene, aromatic and aliphatic hydrocarbons, halogenated solvents and concentrated acids.                                                                                                                                                                                     The main properties of EPDM are its outstanding heat, ozone and weather resistance. The resistance to polar substances and steam are also good. It has excellent electrical insulating properties.                                                                                                                                                                                                                                                                                                       EPDM Common compound: temperature from -50°C ~ 150°C  , Special compound hign temperature resistant up to 180°C .

Silicone   Rubber (SI )                                                                                                                                                                                                                                                                                                              It has strong resistance against a solvent for fluoric rubber and other chamicals,Silicone rubber is not damaged by polarized organic compound like acid and alkali,its heat and cold resistance is excellent in all of rubber  material. Silicone rubber is no harm to human, it is generally used in the area refer to food.  The application temperature arrange from -50°C ~ 220°C  .

Fluoro Carbon Rubber  (FKM)
It has wide chemical resistance and superior performance, especially in high temperature application in different media.Common compound :temperature arrange from -20C ~ 200C. Special compound from -40°C ~230°C .
 

Natural Rubber  (NR)                                                                                                                                                                                                                                                                                                              

NR  is derived from latex, a milky colloid produced by some plants. it is used extensively in many applications and products, as is synthetic rubber. It is normally very stretchy and flexible and extremely waterproof. its probably  tolerated temperature from -20°C ~100°C .

Fluorinated Silicone Rubber (FLS)
Its advantage is it has both properties of Silcone and FKM. temperature arrange from -50°C  ~ 200°C .

Hydrogenate Nitrile Rubber (HNBR)
HNBR is name hydrogenate nitrile rubber. Application temperature from -50°C -150°C .it is commonly used to manufacture o-rings for automotive air-conditioning systems.

We are able to mix rubber compound by ourselves: