CERESIT TS61 low-expansion polyurethane construction foam 750 ml with applicator tube

CERESIT TS61 low-expansion polyurethane construction foam 750 ml with applicator tube is formulated for controlled foaming during sealing, bonding and insulating tasks. Supplied in a 750 ml canister with an applicator tube, this foam is intended to fill gaps, joints and cavities with minimal post-application swelling. The product is suitable for use around windows and doors, for thermal and acoustic insulation, and for general site sealing where precise application and reduced expansion are required.

Advantages

The low-expansion formulation reduces pressure on frames and surrounding materials, enabling precise filling without excessive deformation. The included applicator tube allows for accurate bead placement and easier access to narrow joints. The polyurethane foam provides good adhesion to common building substrates and contributes to thermal and acoustic performance when cured. Its controlled curing delivers consistent foam structure for predictable results in insulation and sealing tasks.

Suitable for

• Sealing gaps and joints around window and door frames
• Thermal insulation of cavities and voids
• Acoustic insulation and reduction of air infiltration
• Bonding lightweight construction elements and panels
• General on-site sealing and filling of crevices

Key specifications

• Formulation: low-expansion polyurethane foam
• Volume: 750 ml canister
• Application method: applicator tube for controlled dispensing
• Typical uses: sealing, bonding, thermal and acoustic insulation
• Curing: moisture-curing polyurethane chemistry

How to use

Ensure substrate surfaces are clean, dry and free from dust, frost and loose particles before application. Shake the canister vigorously as instructed by the manufacturer, fit the applicator tube, and apply the foam from the bottom of the gap upwards to achieve even filling. For large cavities, apply foam in layers and allow each layer to cure partially before adding more. After curing, trim excess foam with a knife and finish the surface as required. Follow safety guidelines for ventilation and protective equipment during application.

Usage recommendations

Store the canister upright in a cool, dry place and protect from direct sunlight and temperatures outside the manufacturer’s recommended range. Use within the stated shelf life and observe manufacturer instructions for disposal of empty containers. For best sealing and insulation performance, pair application with appropriate backing materials or joint tapes where specified and verify compatibility with adjacent materials.