Formasil HD – Valve Sealant

Formasil HD – Valve Sealant


Synthetic sealant for use in valves carrying natural gas, crude oil (sweet or sour), water, condensate, dilute acids, and caustics. It is waterproof and has excellent resistance to oxidation and high metal adhesion. Formasil HD should be used as a hydrocarbon resistant ball and gate valve sealant or as a plug valve lubricant/sealant.


For use in plug, gate, and ball valves. Suitable for use in hydrocarbon gasses.

DO NOT use in oxygen service.


  • 100% synthetic
  • Water resistant
  • High metal adhesion
  • Inhibited for H2S
  • Temperature range: -40° to 400°F

Product Code – FHD