Black liquor is a common byproduct of the paper and pulp industries. It is a thick, dark liquid composed of lignin and other organic compounds. When rubber is exposed to black liquor, it can cause softening or swelling, leading to a decrease in tensile strength and potential failure. In addition, black liquor can cause discoloration and can lead to premature aging of the rubber material.
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 BLACK LIQUOR. 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