Sika Boom®-114 Multi Purpose is a one-component, moisture-curing polyurethane expanding foam designed for a wide range of sealing, filling, and insulation tasks. It expands after application to fill voids effectively, providing excellent thermal and sound insulation.

This versatile PU foam offers strong adhesion to most common building materials including concrete, masonry, brick, wood, metal, and PVC, making it ideal for window and door frame installation, pipe penetrations, wall joints, and general gap filling.

✅ Key Features

✔ One-component, ready-to-use polyurethane foam
✔ Multi-purpose solution for filling, sealing, and insulating
✔ Excellent expansion to fill gaps and cavities
✔ Strong adhesion to most construction substrates
✔ Provides thermal and sound insulation
✔ Can be cut, sanded, plastered, or painted after curing
✔ Suitable for interior and exterior applications
✔ Easy application with standard foam applicator
✔ Ideal for windows, doors, pipes, and wall joints