Chemseal - Black Firewall Sealant - MIL-S-38249 Type 1 - Quart | CS-1900

Flamemaster Chemseal

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Flamemaster CS-1900 Black MIL-S-38249 Type 1, Amend. 3 Spec Firewall Sealant - Quart (24 fl oz) Can Kit

Meets MIL-S-38249 Class-B CS 1900 is a compound for sealing firewall structures.  It is elastomeric at operating temperatures from ΓÇÉ65 deg F to 400 deg F and able to withstand flash temperatures of 2000 deg F.

  • Application properties Color: Part A Black Part B Clear Amber Liquid
  • Base viscosity 10,000 - 12,000 poise
  • Consistency: Workable Paste
  • Work life Tack free cure to 35 A 2 hrs. < 4 hrs. < 60 hrs. Slump (flow) < 0.30
  • Mixing ratio (weight) 100:2.5
  • Shelf Life 6 months