2C PU Insulation Adhesive

Description

The Rubberseal 2C PU Insulation Adhesive is a premium-grade, dual-component polyurethane adhesive formulated for bonding thermal insulation boards to approved roofing substrates including concrete, timber, bituminous membranes, cementitious decks, and existing roof overlays.

When mixed, the two components react to form a tough, closed-cell polyurethane foam that rapidly expands to fill surface irregularities, providing full contact adhesion with superior mechanical strength and dimensional stability.

The fast-curing formulation allows for rapid installation progress, reducing downtime and increasing productivity on site. Designed for both new build and refurbishment projects, Rubberseal 2C PU Insulation Adhesive ensures long-lasting performance across a wide range of weather conditions.

Key Features & Benefits

• Two-component polyurethane system for professional flat roof installations
• Fast-curing formulation – sets rapidly for increased installation efficiency
• Excellent adhesion to most common roof substrates
• Expands to fill surface voids for full, even contact bonding
• High tensile and shear strength – stable under load and temperature variation
• Solvent- and isocyanate-based reaction system for maximum durability
• Suitable for bonding PIR, PUR, EPS, and XPS insulation boards
• Weather-resistant – performs in varying site conditions

Applications

Bonding insulation boards in warm roof systems

Suitable for flat and slightly pitched roofs

Compatible with bituminous, concrete, metal, and timber substrates

Ideal for new build or refurbishment projects

Technical Data
Property Value

Type: Two-component polyurethane adhesive
Mix Ratio (A:B): 1:1 by volume
Colour: Beige / Light Brown
Density (Mixed): Approx. 35–40 kg/m³
Tack-Free Time: 3–5 minutes
Full Cure Time: 20–30 minutes
Application Temperature: +5 °C to +35 °C
Service Temperature Range: -30 °C to +100 °C
Coverage (per kit): Approx. 35–40 m² depending on substrate and application method
Packaging: Dual-component system (Part A and Part B)
Storage Temperature: +5 °C to +25 °C
Shelf Life: 12 months (unopened containers)

Handling & Storage

Store indoors at temperatures between +5 °C and +25 °C.

Avoid exposure to direct sunlight and frost.

Use only in well-ventilated areas.

Always wear appropriate PPE (gloves, goggles, and protective clothing).

Refer to the Safety Data Sheet (SDS) for full handling and health information.