Potassium stearate, also known as potassium octadecanoate, is a metallic soap derived from stearic acid. Common uses for this chemical include lubricants, plasticizers, rust inhibitors, and as an ingredient in paint and varnish. Common types of failure when rubber is exposed to potassium stearate include swelling, softening, and degradation. Prolonged exposure to potassium stearate can cause rubber to swell and become soft. The rubber may also become brittle, brittle and degrade over time. Additionally, the surface of the rubber may become tacky and sticky.
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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