Home / Products / Div 07 — Thermal & Moisture Protection / 3M Fire Barrier Water Tight Sealant 3000 WT
Div 07 · Thermal & Moisture Protection
3M Fire Barrier Water Tight Sealant 3000 WT
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3M · 3000 WT
A single-component, neutral-cure intumescent silicone sealant that firestops joints and penetrations while also forming a water barrier.
✓ Verified 2026-08-28
Specs on this page were checked against 3M 3000 WT technical data sheet on 2026-08-28.
Specifications
| Expansion | Minimum 6x cured volume above 662F |
| VOC content | Less water and exempt solvents, 65 g/L or less |
Certifications & Standards
UL 1479
UL 2079
ASTM E814
ASTM E1966
Attributes — product claims, not third-party certifications
Intumescent siliconeClass 1 W RatingNon-slumping
Sustainability
No sustainability metrics on file for this product.