PU Foam Fix and Fill – Pattex

The Pattex PU Foam Fix & Fill is a versatile, ready-to-use expanding polyurethane foam designed for professional sealing, fixing, and insulation applications. Formulated by Henkel’s Pattex brand, this high-quality foam expands on contact with air humidity to form a strong, rigid, and durable structure, ensuring long-term performance in both residential and commercial projects.

This multi-purpose foam provides excellent adhesion to concrete, brick, wood, metal, glass, and most plastics, making it ideal for sealing window and door frames, filling gaps around pipes and conduits, and insulating wall cavities. It also provides superior sound and thermal insulation, helping improve energy efficiency and comfort.

Once cured, the foam can be cut, trimmed, sanded, and painted, allowing for easy finishing and professional results. The precision applicator nozzle ensures controlled dispensing and minimizes waste, making it suitable for both DIY users and professional contractors.

Key Features & Benefits:

• ✅ One-component expanding foam: Easy to use, no mixing required

• ✅ Excellent adhesion: Bonds to concrete, brick, metal, wood, and most plastics

• ✅ Fills and seals: Ideal for gaps, joints, cracks, and cavities

• ✅ Thermal and acoustic insulation: Reduces energy loss and sound transmission

• ✅ Paintable and sandable: Enables smooth and clean finishing after curing

• ✅ Weather- and moisture-resistant: Suitable for both interior and exterior use

• ✅ Fast curing: Quick expansion and hardening for efficient application

• ✅ Durable and long-lasting: Maintains stability without shrinking or cracking

Applications:

• Sealing around door and window frames

• Filling gaps, joints, and wall penetrations

• Insulating pipes, conduits, and wall cavities

• Fixing door frames, panels, and structural elements

• Soundproofing partition walls and HVAC systems

• General construction and maintenance use

Technical Specifications:

• Brand: Pattex (by Henkel)

• Product Type: Expanding PU Foam

• Base: Polyurethane

• Curing System: Moisture-curing

• Color: Light yellow (after curing)

• Density: Approx. 20–25 kg/m³

• Yield: Up to 45 liters per can (depending on humidity and temperature)

• Tack-free Time: ~10 minutes

• Cutting Time: ~30–45 minutes

• Full Cure: 12–24 hours

• Temperature Resistance: -40°C to +90°C (cured foam)

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

Surface Preparation & Application:

1. Shake the can vigorously before use.

2. Clean and slightly moisten the surface for optimal adhesion.

3. Apply the foam in layers, allowing expansion space.

4. Allow curing and trim excess foam once hardened.

5. Finish by sanding, painting, or sealing as required.

Why Choose Pattex PU Foam Fix & Fill:

Backed by Henkel’s trusted quality, Pattex PU Foam Fix & Fill delivers professional performance, easy application, and long-lasting results. It’s the perfect all-in-one solution for filling, sealing, and insulating tasks around the home or job site.

Whether you’re fixing door frames, sealing joints, or improving insulation, this foam provides superior bonding strength, energy efficiency, and durability — ensuring a clean, reliable, and lasting finish every time.