WF300 INTUMESCENT FIRESTOP CAULK IS A LATEX-BASED FIRESTOP CAULK

Description

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.

Key Features

• 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
• Specifications:
  • Color: Red
  • Density/Weight per Gallon: 10.2 lbs/gal (1.22 kg/L)
  • Flame Spread: 0*
  • Smoke Development: 20*
  • In Service Temperature: Less than 185°F (85°C)
  • Storage Temperature: 40°F (4°C) to 95°F (35°C)
  • Application Temperature: 35°F (2°C) to 100°F (38°C)
  • STC Rating (ASTM E90-04/ASTM C919): 61 (Relates to Specific Construction)
  • VOC Content: 53 g/L**
  • Average Volume Shrinkage (ASTM C1241): 23.5%
  • Notes: *Tested to ASTM E84 (UL723) at 14% surface coverage (modified test for sealants and caulks) **Per SCAQMD Rule 1168 (EPA Method 24)
• Test Standards:
  • ASTM E84 (UL723)
  • ASTM E90
  • ASTM E119 (UL263)
  • ASTM E814 (UL1479)
  • ASTM G21
  • CAN/ULC-S115