Potassium bifluoride, also known as potassium hydrogen fluoride and potassium fluoroborate, is a chemical compound with the formula KHF2. It is used in a variety of industries, including metallurgy, petroleum refining, welding and printing.
When rubber is exposed to potassium bifluoride, it can suffer from corrosion, cracking, embrittlement and swelling. Long-term exposure to the chemical can cause discoloration and fading of the rubber material, as well as accelerated degradation and loss of elasticity. In extreme cases, potassium bifluoride can cause complete failure of the rubber, resulting in the need for replacement.
Fluorosilicone o-rings are a hybrid of silicone and FKM resulting in great jet fuel resistance with high and low temperature performance. Also widely used in semiconductor Ashing equipment with strong resistance to oxygen plasma, FVMQ fluorosilicone o-rings also feature excellent flexibility, compression resistance, aging and sunlight resistance, and overall wide range of basic chemical resistance.
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