STI Firestop WF310
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STI Firestop WF310

Intumescent Firestop Caulk, 10.1 oz Tube, Red

  • Manufacturers: Specified Technologies
  • Brand Name: STI Firestop
  • PN: WF310
  • MPN: WF310
  • UPC: 73057309710
  • Min. Order Qty: 1
  • Qty. Interval: 1
  • Availability: loading
  • 89 4.4 Branch Availability
Boiling Point      :      Greater Than 100 deg C
Color      :      Red
Composition      :      2 - 4%Mineral Spirits, 1 - 2% Sulfuric Acid Compound with Graphite, 0.1 - 0.5% Crystalline Silica
Container Size      :      10.1 oz
Container Type      :      Tube
Evaporation Rate      :      Greater Than 1
Form      :      Paste
Item Name      :      Intumescent Firestop Caulk
Odor/Scent      :      Mild Latex
Relative Density      :      11.4 lb/gal
Shelf Life      :      2 years
Temperature Rating      :      120 deg F
VOC      :      0.36%
pH Rating      :      7.4 - 8.4

BlazeStop 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.

  • Installer friendly, easily applies with standard caulking gun
  • Suitable for combustible and non-combustible penetrants
  • Tested for up to 3 hr of fire exposure when tested to ASTM E814/UL1479
  • 350 deg F expansion begins

Standards/Certifications: ASTM E814, FBC system compatible, UL 1479, CAN/ULC S115, UL listed

  • pdf MSDS https://www.plumbers-supply-co.com//ASSETS/DOCUMENTS/ITEMS/EN/UNI-PS29433_Msds.pdf
  • pdf Specification Sheet https://www.plumbers-supply-co.com//ASSETS/DOCUMENTS/ITEMS/EN/UNI-PS29433_Spec.pdf