PROPIONIC ACID Resistant O-Rings and Seals

Propionic acid, also known as propanoic acid, is a colorless liquid with a pungent odor. It is used in a variety of industries including food processing, animal feed production, and chemical manufacturing. Common uses for propionic acid include preservative for food products, as a cleaning agent, and as a feedstock for the production of other chemicals.

Common types of failure when rubber is exposed to propionic acid include swelling, cracking, and embrittlement. Rubber exposed to propionic acid can become soft and swell, leading to increased permeation of the compound and decreased tensile strength. Additionally, some forms of rubber may become brittle and crack when exposed to propionic acid resulting in a decrease in its mechanical properties. Additionally, some forms of rubber may become tacky or discolored when exposed to propionic acid, resulting in a decrease in its aesthetic appeal.