Metacaulk 1000 is a water‑based, expanding firestopping sealant that meets UL1479 and ASTM E814 fire‑resistance standards.
Metacaulk 1000 is a single‑component, water‑based firestopping sealant that expands when exposed to heat, does not sag, and can be applied with a standard caulking gun or from a bulk container. It provides elasticity under vibration and is suitable for a variety of penetrations, including PVC, metal, EMT, and insulated pipes. The product is certified to ASTM E814, UL1479, UL2079 and ULC CAN 4‑S115M fire‑resistance tests.
The datasheet includes installation guidance, testing data, storage and handling instructions, and safety precautions. It specifies recommended application gaps, material properties such as density and expansion temperature, and limits such as maximum surface temperature and moisture sensitivity. This manual is written in Chinese.
| Density | 10.4 lbs/gal (1.25 kg/L) |
|---|---|
| Expansion start temperature | 190 °C |
| Expansion temperature limit | 302‑593 °C |
| Flame spread index | 5 |
| Smoke developed index | 10 |
Store it between 2 °C and 49 °C, keep it in the original container, and avoid freezing.
Up to 2 in (51 mm) for open‑system PVC and up to 3 in (76 mm) for closed‑system PVC/ABS penetrations.
The sealant typically cures in three to four weeks.