FM330 Pro Air Seal Expanding foam is a PU-based flexible expanding foam that has been designed to form an airtight seal around windows, door frames etc. FM330 has excellent adhesion to brick, block, stone, plaster, and cementitious materials as well as wood, metal, and a variety of plastics. The low post-expansion facilitates greater control during application.
- A high-performance PU foam with excellent acoustic and airtight performance
- Airtight formulation – tested to EN 12114
- Acoustic dampening – up to 63 dB joint insulation index
- Elastic performance – up to 50% movement capability ensures the integrity of the seal in the event of movement
- Sub-zero formulation – can still be used at temperatures as low as -3°C
- Low post-expansion facilitates more accurate application depth
