AMMONIUM POLYSULFIDE Resistant O-Rings and Seals
Ammonium Polysulfide, also known as ammonium thiosulfate, is a colorless to light yellow liquid that is used as a reducing agent and fertilizer. It is also used in the production of photographic chemicals and in the leather tanning process. Common types of failures when rubber is exposed to ammonium polysulfide are swelling, softening, and discoloration. These effects are caused by the polysulfide's corrosive and oxidizing properties, which can break down the polymer chains of the rubber. Additionally, the acidic nature of the polysulfide can cause corrosion of the rubber, leading to further breakdown.
Fluorosilicone (FVMQ, FSIL)
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.
F1001 Fluorosilicone
- General purpose material
F1003 Fluorosilicone
- General purpose material
F1000 Fluorosilicone
- General purpose material
Rubber Material Compatibility with AMMONIUM POLYSULFIDE
View some of our other material compatibility ratings with AMMONIUM POLYSULFIDE. If you don't see what you're looking for or need more guidance, our team of experienced sealing design engineers can help select the best sealing products and material for your specific application.
View Full Chemical Compatibility Guide
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