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STI WF320 Intumescent Firestop Sealant for Wood Frame (20oz Sausage)
Original price was: $13.50.$12.95Current price is: $12.95.
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 Hours of fire exposure when tested to ASTM E814/UL1479
Specifications
| Physical Properties | |
|---|---|
| Color: | Red |
| Odor: | Mild Latex |
| Density: | 11.4 lbs/gal (1.36 kg/L) |
| Solids Content: | 0.81 |
| pH | 7.4 to 8.4 |
| Max In Service Temperature | 120º F (49º C) |
| Flame Spread | 0* |
| Smoke Developed | 20* |
| STC Rating (ASTM E90/ASTM C919) | 61 |
| VOC Content | |
| (EPA Method 24/ASTM D3960) | 33.3 lb/gal. (40.0 g/L) |
| Expansion Begins | 350º F (176º C) |
| Volume Expansion: | >5X Free Expansion |
| Shelf Life: | 2 Years |
