Expanding Foam Fire Rated Resistant PU 750ml EN1366-4 Retartdant Electrical Seal 7001224

B1 Fire Rated Expanding PU Foam 750ml Straw Applied Grey

A ready-to-use polyurethane expanding foam for filling, sealing and insulating gaps where fire resistance is required. The single-component formula cures with moisture and is dispensed through the included straw adaptor.

Specifications:

• Brand: DYNATEX
• Size: 750ml
• Colour: Grey
• Fire classification: B1 according to DIN 4102
• Fire resistance: Up to 235 minutes in specific configurations tested to EN 1366-4
• Yield: Up to 45 litres, depending on temperature and humidity
• Tack-free time: Approximately 7 ± 3 minutes
• Temperature resistance: -40°C to +90°C once cured
• Thermal conductivity: 0.036 W/m·K
• Water absorption: Maximum 1% by volume
• Compression strength: 0.03 MPa

Key Features:

✅ Strong adhesion to most common building substrates, excluding PTFE, polyethylene and polypropylene.

✅ Provides thermal and acoustic insulation while helping seal against smoke and gas.

✅ Can be cut, trimmed and painted after curing for a neat finish.

✅ Mould and water resistant, with no shrinkage once cured.

✅ Contains no CFCs or HCFCs.

Suitable for:

Filling gaps around door and window frames, sealing joints and cavities, bonding insulation materials and insulating roof construction. For fire-rated joints or cable and pipe penetrations, use only where the product’s test documentation specifically covers the intended installation.

The stated fire-resistance duration is configuration-dependent, not a blanket rating for every application. Check the manufacturer’s fire-test details and installation instructions before use.

Why choose DYNATEX?

A practical, straw-applied foam combining gap filling, insulation and finishing in one product.

• Great Value for Money
• Supplied Brand New
• Suitable For Many Applications
• Available From Stock For Immediate Dispatch
• All Prices Include VAT. Invoice Provided