Authorized Metacaulk® Distributor(732) 757-4552
Strips
Metacaulk Firestop Wrap Strip
Highly intumescent graphite-based composition on an elastomeric synthetic compound. Designed for combustible services in vertical and horizontal applications. Expansion ratio 1:20. Up to 4-hour fire resistance.

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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 4 hours
- Highly intumescent — 1:20 expansion ratio
- Flexible, freeze-thaw capable
- VOC compliant
- Available in 1" and 2" widths, 18' and 36' rolls
Typical applications
- Combustible pipes
- insulated pipes
- single & bunched cables
- cable trays
Technical data
| VOC | <10 g/L |
|---|---|
| Color | Black |
| Density | 1,334 kg/m³ |
| Chemical Base | Graphite based on Synthetic compound |
| Smoke Index | 20 |
| Flame Spread | 0 |
| Expansion Ratio | 1:20 |
| Expansion Pressure | 1.330 N/mm² (13.3 Bar) |
Installation overview
- Clean all surfaces free from debris
- Tightly wrap required strips around penetrant to fill annular space
- Push strips into opening to required depth
- If cold smoke seal required, apply recommended sealant over strips