Viton® B - 68% Fluorine
Better–Chemical Resistance

Acid Resistant Viton®
Viton® B has better resistance and retains flexibility better after dry heat aging than Viton® A. It is recommended for applications requiring maximum retention of elastic properties combined with good mechanical properties. Viton B is specified by the FSA to resist sulfur dioxide in power generating factory systems.

Chemical Resistance
Viton® B offers superior resistance to both diluted and concentrated aggressive acids. Thermodyn's exclusive B compound TH-6070-B* made of Viton® is resistant to various mineral acids including:
• Sulfuric Acid
• Nitric Acid
• Hydrochloric Acid
• TH-6070-B* is one of the few B compounds that meet DuPont™ chemical's rigorous engineering specifications for use in DuPont™ plants.
• U2A S24/G24, S23/G23

General Properties
• Hardness Durometer, ASTM D1414, IRHD: 75±5
• Tensile Strength, ASTM D412 minimum: 1400psi
• Elongation ASTM D412 minimum: 175%
• Temperature Range: -18°C to 220°C (450°F)
• Compression Set, ASTM D395B plied: 30% maximum Discs. 22hr @ 200°C (392°F)
• Fluid Resistance, ASTM D471 immersed: 20% maximum volume swell in Toluene at 20°C (68°F) for 70 hours


Additional Products made with Viton® B
• Sheeting
• Molded Parts
• Diaphragm Sheeting
• Flue Duct Expansion Joints
• Extrusions
• Caulk, Coating and Adhesive
• TH-6070-B is resistant to many fluids. Please consult Thermodyn™ if you are unsure which type of Viton® will offer optimum sealing and fluid resistance.