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SMOKEBLOCK Caulk is a non-combustible gun grade sealer for fireblocking and draftstopping in wood frame walls and floors. SMOKEBLOCK is designed for filling annular spaces around penetrants and along seams throughout the building envelope and is suitable for use in one or two family dwellings. Not Suitable for Use in Fire-Rated Construction.
Physical Properties
| Property | Value |
|---|---|
| Color | Light Red |
| Density/Weight per Gallon | 14.3 lb/gal (1.71 kg/L) |
| Solids Content by Weight | 63.6% |
| Solids Content by Volume | 38% |
| Flame Spread | Non-Combustible ASTM E136** |
| Smoke Development | Non-Combustible ASTM E136** |
| Coverage | Penetration |
| pH | 10.5 to 11.5 |
| In Service Temperature | 0°F (-18°C) to 300°F (149°C) |
| Storage Temperature | 35°F (1.7°C) to 95°F (35°C) |
| Application Temperature | 35°F (1.7°C) to 95°F (35°C) |
| STC rating | N/A |
| VOC Content | Less than 2 g/L**** |
| Shelf Life From Date of Manufacture | 12 months |
| Physical State | Paste |
| Evaporation Rate | Greater than 1.0 (BuAc=1) |
*Tested to ASTM E84 (UL723) at 14% surface coverage (modified test for sealants and caulks)
**Per SCAQMD Rule 1168 (EPA Method 24)
