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Putty
Metacaulk Fire-Rated Putty Pads & Sticks
Moldable, non-curing, single component fire-resistant material. Carbonizes when heated, forming an insulative char. No tools or mixing required — apply by hand. UL Classified up to 3 hours. STC Rating 60.
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UL-Classified SystemsComponents of tested UL firestop systems
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Authorized DistributorGenuine Metacaulk® / RectorSeal
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TDS & SDSFull technical documentation
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Same-Day ShippingOrder by 11 AM CST
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Spec & Submittal SupportCode & system help
Key features
- UL Classified systems up to 3 hours
- No volatile solvents or asbestos fillers
- Excellent acoustic properties — STC 60
- Primerless adhesion to most substrates
- No electrical conductivity
- Mold inhibitor (ASTM G21, zero fungal growth)
Typical applications
- Blank openings
- metallic pipes
- single & bunched cables
- cable trays & bus bars
- membrane penetrations
- electrical boxes
Technical data
| VOC | <10 g/L |
|---|---|
| Color | Light Red/Pink |
| Chemical Base | Non-drying synthetic Polymers and Oils |
| STC Rating | 60 |
| Smoke Index | 125 |
| Flame Spread | 10 |
| Reaction Begins | 220°F (104°C) |
| Specific Gravity | 1.48 kg/m³ |
Installation overview
- Secure penetrating items firmly
- Clean all contact surfaces
- PUTTY: Apply by hand to required parameters, ensuring contact with all surfaces
- PUTTY PADS: Remove liner, align with electrical box overlapping stud, work pad around box edges
- Cut slits in pad to fit around cables/conduit, press firmly to all sides