The molecular weight of fluorosilicate raw rubber plays a key role in its application, and there are significant differences in the performance and application scenarios of fluorosilicate raw rubber with different molecular weight ranges.


Generally speaking, fluorosilicate raw rubber has a wide range of molecular weights, ranging from hundreds of thousands to millions.Fluorosilicate raw rubber with lower molecular weight, such as room temperature vulcanized fluorosilicate raw rubber with a relative molecular mass between 1×100~8×100, has good processing properties and fluidity, and is suitable for the preparation of products that require rapid vulcanization, such as one-component or two-component room temperature vulcanized sealants.Such products are usually used in situations where the vulcanization speed is required and the vulcanization environment is relatively mild, such as building sealing, electronic component packaging, etc.


On the other hand, fluorosilicate raw rubber with a higher molecular weight, such as high-temperature vulcanized fluorosilicate raw rubber with a relative molecular mass of 4×10~~8×10~, has higher mechanical strength and heat resistance.This kind of raw rubber can form a denser crosslinking network after vulcanization, which gives the product better oil resistance, solvent resistance and high temperature resistance.Therefore, they are more suitable for the preparation of seals, oil seals, diaphragms, catheters and other products that need to work under extreme conditions, such as seals that are resistant to fuel oil and lubricating oil in the aviation industry, and various vehicle sealing rings and oil seals in the automotive industry.


In the aviation industry, high molecular weight fluorosilicate raw rubber is widely used in various key components such as O-rings, gaskets, sensor materials and diaphragms on aircraft because of its excellent high and low temperature resistance and oil resistance.These components need to maintain long-term stable performance in extreme temperatures and fuel media, and high-molecular-weight fluorosilicate raw rubber can meet this demand.


In the automotive industry, high molecular weight fluorosilicate raw rubber also plays an important role.They are used to prepare components such as sealing rings, oil seals, diaphragms, conduits and valve linings for various vehicles to ensure that the vehicle can maintain good sealing and durability under various operating conditions.