Fischer PU Foam

The Fischer PU Foam is a professional-grade expanding polyurethane foam specially formulated for use in construction, installation, and general maintenance work. Manufactured by Fischer, a global leader in fastening and sealing solutions, this foam delivers superior adhesion, durability, and insulation performance on a wide variety of substrates.

When dispensed, the foam expands to fill cavities, cracks, and gaps — providing an airtight and watertight seal once cured. It adheres strongly to materials like concrete, brick, wood, plaster, metal, and plastic, making it an ideal solution for both indoor and outdoor applications.

The Fischer PU Foam also offers excellent thermal and acoustic insulation, helping improve energy efficiency and soundproofing in buildings. It can be easily cut, trimmed, sanded, or painted after curing, ensuring a clean and professional finish.

Engineered for convenience and performance, this foam is available in both straw-type and gun-type variants, allowing for easy application depending on project size and precision requirements.

Key Features & Benefits:

• ✅ High expansion rate: Efficiently fills cavities, gaps, and cracks

• ✅ Strong adhesion: Bonds securely to most construction materials

• ✅ Excellent insulation: Provides thermal and soundproofing benefits

• ✅ Weather & moisture resistant: Suitable for indoor and outdoor use

• ✅ Paintable & sandable: Can be finished for a clean appearance

• ✅ Durable seal: Long-lasting, airtight, and watertight performance

• ✅ Easy application: Compatible with standard PU foam applicators or straws

Recommended Applications:

• Sealing gaps around windows and door frames

• Filling wall cavities, joints, and cracks

• Insulating pipes and ducting penetrations

• Mounting and fixing door frames and panels

• General construction and repair sealing tasks

Technical Specifications:

• Brand: Fischer

• Product Type: Polyurethane Expanding Foam

• Base: One-component polyurethane (moisture-curing)

• Density: ~20–30 kg/m³

• Expansion Rate: Up to 2–3 times its volume

• Application Temperature: +5°C to +35°C

• Service Temperature: -40°C to +90°C (after curing)

• Skin Formation Time: 8–12 minutes

• Cutting Time: 30–45 minutes

• Full Cure: 12–24 hours (depending on humidity and temperature)

• Color: Light yellow / cream

• Packaging: 750 ml aerosol can (straw or gun grade)

Surface Preparation & Application:

1. Ensure surfaces are clean, dry, and free from dust, grease, or loose particles.

2. Shake the can vigorously before use (approx. 20–30 seconds).

3. Apply foam evenly, filling gaps only partially to allow for expansion.

4. Allow to cure completely before trimming or finishing.

5. Protect from direct sunlight until fully cured.

Why Choose Fischer PU Foam:

Fischer PU Foam stands out for its consistent performance, superior adhesion, and versatility across a wide range of construction and installation tasks. Trusted by professionals worldwide, it provides long-lasting sealing, insulation, and stability, helping prevent energy loss and moisture ingress.

Whether used for window installation, joint filling, or general construction work, Fischer PU Foam ensures professional results with minimal effort — making it a must-have for contractors, builders, and DIY enthusiasts alike.