Authorized Metacaulk® Distributor(732) 757-4552
Devices
Metacaulk Intumescent Sleeves
Prefabricated galvanized steel sheet lined with highly reactive graphite intumescent material. Simply wraps around penetrant and slides into position. Ideal for uneven contours and concrete fluted deck assemblies. Expansion ratio 1:25. Up to 3-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 3 hours
- No steel bolts or fasteners needed
- Retrofit-friendly, open & closed pipe systems
- Expansion ratio 1:25, expansion pressure 13.91 Bar
- Available for 2-4" and 6-8" pipes
Typical applications
- Combustible pipes (PVC
- CPVC
- ABS
- FRPP
- PEX
- PP
- PVDF
- RNC)
- insulated pipes (EPDM
- glass wool)
Technical data
| VOC | <10 g/L |
|---|---|
| Color | Black |
| Density | 1,275 kg/m³ |
| Chemical Base | Graphite based on Synthetic compound |
| Expansion Ratio | 1:25 |
| Expansion Pressure | 1.391 N/mm² (13.91 Bar) |
Installation overview
- Clean all surfaces free from debris and contaminants
- Select correct sleeve size for penetrant
- Wrap sleeve with intumescent facing inward, overlap bare metal end ~2 in.
- Secure with tape, hose clamps, or tie wire
- Slide through assembly, center within opening, tightly secure
- Install backing material and apply recommended sealant in annulus