Fluoroelastomer coating Wollastocoat®

Try our Wollastocoat range for carbon black replacement in color-sensitive fluoroelastomers. Our versatile, color-functional carbon black filler Our Wollastocoat wollastonite is a fine-particle-size, low-aspect-ratio calcium silicate that has been chemically modified to give it ideal properties as a carbon black replacement filler. The Wollastocoat range is particularly recommended for replacing carbon black in color-sensitive fluoroelastomer O-ring and gasket applications. Replacing carbon black N990 with Wollastocoat® 1250 or Wollastocoat® M1250 coated wollastonite (at the same phr) in a fluoroelastomer (FKM) with a bisphenol cure system will give you the following benefits: Improves compression set Shortens curing times Maintains torque Key benefits Improves compression set Shortens curing times Maintains torque