Adhesive for Bituminous Membranes and Polystyrene Bostik Denbit, Black, 3 kg

Bostik Denbit is a professional bituminous adhesive, ready to use, ideal for bonding bituminous membranes, expanded or extruded polystyrene boards, as well as sealing and repairing exterior construction surfaces. Its formula, based on polymer-modified bitumen, ensures excellent adhesion, high elasticity, and long-lasting protection against moisture and temperature changes.

Recommended Applications

• Bonding and repairing bituminous membranes on roofs, foundations, or terraces.
• Fixing expanded (EPS) and extruded (XPS) polystyrene frames in thermal insulation systems.
• Filling cracks, joints, and gaps on horizontal or vertical surfaces.
• Sealing transitional areas such as air ducts, drains, or metal joints.
• Compatible with concrete, plaster, masonry, levelling compounds, and metal.

Key Advantages

• Solvent-free, environmentally friendly, and safe product.
• Superior elasticity and durability due to polymer content.
• Ready to use, requires no additional mixing.
• Easy application with spatula, rake, or brush.
• Strong adhesion and durable sealing on many substrate types.

Technical Characteristics

• Base: polymer-modified bitumen
• Color: black
• Packaging: 3 kg bucket
• Consumption: approximately 1.4 kg/m² for 1 mm thickness
• Maximum layer thickness: 4 mm
• Drying time: ~24 hours per mm at +23°C and 55% humidity

Application Instructions

Ensure the surface is clean, dry, and solid, free of dust, grease, or rust. For highly absorbent surfaces, use Denbit Rapid Primer as a primer. Avoid applying on frozen or wet surfaces. Protect the applied surface from rain and moisture until fully dry (23 days).

Storage

Store the product in a cool, dry place, protected from frost. Ideal temperature: 15°C - 25°C. Shelf life: 24 months in the original sealed packaging.