12OZ Fire Block Sealant
12OZ Fire Block Sealant
TV106167
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$11.99
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$11.99
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$11.99
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12OZ Fire Block Sealant is a 12-ounce expanding fire-block foam or caulk sealant used to seal penetrations and gaps in residential and commercial construction.
🔧 What it’s used for:
- Sealing around:
- Electrical boxes and conduit
- Plumbing penetrations
- HVAC openings
- Stud and top-plate penetrations
- Reducing airflow and drafts
- Helping slow the spread of:
- Flame
- Smoke
- Toxic gases
⚙️ Typical features:
- Expanding polyurethane foam or fire-resistant sealant
- Orange color for easy inspection identification
- Fire-block rated for Type V residential construction
- Paintable after curing on many products
- Indoor/outdoor compatible depending on formulation
- Meets ASTM E84 or related fire-block standards on many brands
🧠 Important distinction:
A fire-block product is not the same as a true firestop system for rated assemblies. Fire-block foam is generally intended for:
- Wood-frame residential construction
- Draft stopping
- Non-rated penetrations
Common examples:
- GREAT STUFF Fireblock
- Touch ’n Foam FireBreak
- 3M FB-Foam
- Handi-Foam Fireblock

12OZ Fire Block Sealant
$11.99