Authorized Metacaulk® Distributor(732) 757-4552
Sealants
Metacaulk 1000 Intumescent Firestop Sealant
Single component, water-based intumescent sealant for construction joints and through-penetrations. Highly intumescent with an expansion ratio of 1:18, providing superior fire protection for up to 4 hours. Cures to an elastomeric seal suitable for dynamic movement.
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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 (ASTM E814/UL 1479, UL 2079)
- Highly intumescent — 1:18 expansion ratio at 550°C
- Protected against mold growth (ASTM G21, zero fungal growth)
- Water-based acrylic, VOC <10 g/L, paintable
- 3-year shelf life, excellent freeze-thaw resistance
- STC Rating 62 (ASTM E90), Flame Spread 0, Smoke Index 0
- FBC System Compatible (CPVC piping)
Typical applications
- Metallic pipes
- combustible pipes
- insulated pipes
- construction joints
- air ducts
- single & bunched cables
- cable trays & bus bars
Technical data
| VOC | <10 g/L |
|---|---|
| Color | Red |
| Application Temp | 40°F–120°F |
| Density | 1.36 g/cc |
| Chemical Base | Water Based Acrylic |
| Cure Time | 3–4 weeks |
| Skin Time | 30 min @ 77°F |
| STC Rating | 62 |
| Viscosity | 176,000 cp |
| Smoke Index | 0 |
| Flame Spread | 0 |
| Expansion Ratio | 1:18 |
| Expansion Pressure | 1.215 N/mm² (12.15 Bar) |
Installation overview
- Clean all contact surfaces free from loose debris and contaminants
- Install required backing material per detailed instructions or listed system
- Apply Metacaulk 1000 to required parameters, ensuring contact with all surfaces for maximum adhesion
- Tool sealant to a defect-free finish using a wetted trowel or putty knife
- Clean all equipment with water immediately after use