FKM Rubber Parts
FKM rubber has the reputation of the king of rubber, and it is an irreplaceable key material in cutting-edge industries. The FKM rubber sealing rings and gaskets produced by Jiangzhi are often used in aerospace, automobile, military and other industries.

What is FKM rubber?
Fluoroelastomers also known as FKM rubber has excellent heat resistance, oxidation resistance, oil resistance and chemical resistance, and has been used in cutting-edge technologies such as modern aviation, missiles, rockets, space navigation, ships, atomic energy, and automobiles, shipbuilding, chemicals, petroleum, and telecommunications, instruments, machinery and other industrial fields. Due to its excellent performance, FKM rubber has been more and more widely used, and it has well solved the sealing problem under harsh conditions. With the continuous improvement of FKM manufacturing process and in-depth research on its application, this sealing material with the best comprehensive performance is bound to be popularized and applied in more fields in the future.

FKM Properties
- Density: 1.7~2.5g/cm3
- Low Temperature Usage: -25℃~-10℃ | -40℉~-4℉
- High Temperature Usage: 250℃~300℃ | 482℉~572℉
- Hardness Range: 40-90 Shore A
- High tensile strength: 500 PSI to 2000 PSI
- Maximum elongation 300%
- Aging resistance - Excellent
- Ozone resistance - Excellent
- Insulation performance - Good
- High temperature resistance - Excellent
- Low temperature property - Poor
- Chemical resistance - Excellent
- Adhesion to metal - Good
Advantages and Benefits of FKM
Good Stability
FKM rubber has a high degree of chemical stability, and is currently the best medium-resistant property among all elastomers, and can resist most oils, organic acids and organic solvents.
Excellent Heat Resistance
The high temperature resistance of FKM rubber is the same as that of silicone rubber. It can be said that it is the best among elastomers at present. It can be used for a long time at 250°C and short-term at 300°C, and can maintain good elongation at break as well as elasticity.
Good Aging Resistance
FKM has excellent weather resistance and ozone resistance. There are data showing that there is no obvious crack after 45 days in the air with ozone concentration of 0.01%
Good Mechanical Properties
Excellent physical and mechanical properties, fluororubber has a large compression set at high temperature, but if compared under the same conditions, the compression deformation rate of nitrile rubber and neoprene rubber is larger.
Good ELectrical Performance
FKM has good electrical properties and lower hygroscopicity than other elastomers, so it can be used as a good insulating material.
Applications of FKM Rubber
- Automotive: engine seal gasket, rubber bellow, oil hose, outlet or inlet hose;
- Aerospace & Aircraft: seal, gasket, diaphragm, liners;
- General usage: gasket, seal, oil hose, diaphragm.

Other Rubber Materials

Natural Rubber
Natural rubber (NR) is the most widely used material among all the rubbers.

EPDM Rubber
Relativly inexpensive with excellent oxidation and ozone resistance, heat resistance and aging resistance.

Nitrile Rubber
Nitrile rubber is a rubber material with excellent oil resistance and wear resistance.

Silicone Rubber
Silicon rubber is a superior choice for applications that deal with extreme temperatures.

FKM Rubber
FKM is a go-to rubber material forapplications that require fuel and oilresistance.

Silicone Rubber
Silicon rubber is a superior choice forapplications that deal with extremetemperatures.