STODDARD SOLVENT Resistant O-Rings and Seals

Stearic acid, also known as Stoddard Solvent, is a common saturated fatty acid found in many animal and vegetable fats. It is widely used in the cosmetics, pharmaceutical, and food industries as an emulsifier, surfactant, and stabilizer. Common rubber materials, such as nitrile rubber and natural rubber, can be adversely affected when exposed to this chemical. The rubber's physical integrity can be compromised due to the stearic acid's corrosive properties, which can result in cracking, swelling, and discoloration of the rubber. Additionally, the acidic nature of the chemical can break down the rubber's bond with the adhesives that are used to join the rubber to other materials. Ultimately, the rubber's performance and lifespan can be significantly diminished when exposed to stearic acid.