COAL TAR Resistant O-Rings and Seals

Coal tar is a thick, black liquid that is a by-product of the production of coke and coal gas from coal. It is composed primarily of aromatic hydrocarbons and is used in a variety of industries, including construction, pharmaceuticals, paper, and leather. Common uses include roofing, waterproofing, fuel, and production of dyes and pigments.

When rubber is exposed to coal tar, it can cause changes in elasticity, swelling, embrittlement, hardening, cracking, and discoloration of the material. In extreme cases, it can cause the rubber to completely break down and lose its structural integrity. Additionally, coal tar can penetrate rubber and cause it to become brittle over time. Protective coatings and proper storage of rubber materials can help to mitigate the effects of coal tar exposure.


FKM (Viton®)

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.

Common Names: FKM, FPM (Europe), Fluoropolymer, Fluoroelastomer


Here are just a few of the products we have available. Buy online or submit a quote for a fast response.
Recommended Material:
V1000 FKM
Low Temp
-15 °F (-30 °C)
High Temp
400°F (205 °C)
Base Material
FKM (Viton®)
Hardness
75
Color
Black
Attributes
  • General purpose material
Datasheet
Recommended Material:
V1003 FKM
Low Temp
-15 °F (-30 °C)
High Temp
400°F (205 °C)
Base Material
FKM (Viton®)
Hardness
75
Color
Brown
Attributes
  • General purpose material
Datasheet
Recommended Material:
V1129 FKM
Low Temp
-15 °F (-30 °C)
High Temp
400°F (205 °C)
Base Material
FKM (Viton®)
Hardness
70
Color
Brown

Rubber Material Compatibility with COAL TAR

View some of our other material compatibility ratings with COAL TAR. 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
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