Carbon dioxide (CO2) is a colorless, odorless gas with a variety of uses across many industries, including food production, medical, and industrial. It is also known as dry ice, carbonic acid, and carbonic anhydride. Carbon dioxide is used in food production as a preservative, as well as a carbonation agent. It is also used in medical applications such as cryogenic treatments, and in industrial processes such as welding and cutting.
When rubber is exposed to carbon dioxide, the material is at risk of degradation. The gas can cause a loss of elasticity, cracking, and brittleness of the rubber. Carbon dioxide can also cause swelling, discoloration, and an increase in the hardness of the rubber. If left untreated, these effects can lead to a complete failure of the rubber seal.
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.
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