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STI WF300 Intumescent Firestop Caulk

STI WF300 Intumescent Firestop Caulk 5 Gallon Pail

STI WF300 Intumescent Firestop Caulk

WF300 Intumescent Firestop Caulk is a latex-based firestop caulk designed for residential wood frame construction. WF300 Caulk is tested for addressing penetrations through wood/frame construction such as wood stud walls and floor/ceiling assemblies. Under fire exposure, WF300 expands to up to four times its original volume.

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Product Description

  • Installer friendly, easily applies with standard caulking gun
  • Suitable for combustible and non-combustible penetrants
  • Tested for up to 3 Hours of fire exposure when tested to ASTM E814/UL1479
  • Expands up to 4 times origianl volume when exposed to fire

STI WF300 Intumescent Firestop Caulk Product Data Sheet

STI WF300 Intumescent Firestop Caulk Safety Data Sheet

STI WF300 Intumescent Firestop Caulk Installation Sheet

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