Silicic acid, also referred to as silicate esters, is a common chemical compound used in a variety of industries. It is often used as a preservative in food, in water treatment to reduce hardness, and as a corrosion inhibitor in industrial processes. Common uses also include the production of detergents, adhesives, and lubricants.
When rubber is exposed to silicic acid, the most common type of failure is the dissolution of the rubber. This is due to the acid’s ability to break down the polymer chains in the rubber, leading to a loss of elasticity. Additionally, the acid can also cause staining, weakening, discoloration, and even softening of the rubber. As a result, rubber that is exposed to silicic acid for extended periods of time can become brittle and more prone to cracking.
Viton ® o-rings from Marco Rubber offer excellent compatibility with a range of chemicals, oils and resist high temperatures up to 400F. Viton ® is also known as FKM made of fluoroelastomer one of the most versatile and widely used sealing materials.
View some of our other material compatibility ratings with SILICIC ACID, AQUEOUS. 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