COPPER CYANIDE Resistant O-Rings and Seals

Copper Cyanide is also known as cuprocyanide and is commonly used in electroplating, metal surface treatment and water treatment. It is also used in the manufacture of dyes and pigments.

When rubber is exposed to copper cyanide, there are several common types of failure that can occur. These include chemical degradation, swelling, and embrittlement. Chemical degradation is caused by the copper cyanide breaking down the rubber material, leading to cracking, discoloration, and loss of elasticity or strength. Swelling of the rubber material is caused by the copper cyanide molecules absorbing into the rubber, resulting in an increase in size and a decrease in physical properties. Embrittlement is caused by the copper cyanide molecules forming an insoluble layer on the surface of the rubber, leading to a decrease in flexibility and strength.