Metacaulk 1000 Intumescent Firestop Sealant

Metacaulk 1000 is a highly intumescent, water-based sealant and smoke seal for construction joints and through-penetrations, with systems rated 1 to 4 hours to ASTM E814 (UL 1479), UL 2079 and CAN/ULC-S115. It is a non-sag, paintable formula with an STC rating of 62.

RectorSeal Metacaulk 1000 Intumescent Firestop Sealant
About RectorSeal

Made by RectorSeal

RectorSeal is a CSW Industrials company and describes itself as a global leader in the life safety and passive fire protection industry. Its Metacaulk brand of firestop products is designed to protect against the spread of fire, smoke and toxic gases in buildings, and its products are tested and certified by independent third-party agencies such as UL and FM.

Product categories

Where this product fits

  • Stocked at or transferred between all six branches
  • Volume pricing by the case or pallet
  • Product specialists to confirm fit for your application

Technical documents

Download the current technical data sheet for Metacaulk 1000 Intumescent Firestop Sealant.

Data sheet (PDF)
Compare alternatives

Other firestop sealants we carry

Same type of product from other manufacturers, all supplied through our branches. Our specialists can help match movement capability, colour and substrate.

Browse all firestopping

Need help with a firestop system? Tell us the assembly, penetration and rating and a product specialist will help match a tested system.

Ask a specialist

Talk to a product specialist

Six branches across BC & Alberta. Real stock, real expertise, since 1987.

Find your branch