Ensure that the surface is thorougly dust and grease-free. Preferably make dry surfaces extra moist, especially absorbent ones. Construction Foam hardens by a chemical reaction with water.
Shake can thoroughly before use.
Screw the accompanying spray attachment carefully on the can, direct the hose and tip the spray attachment with the finger. More or less pressure gives more or less foam. Do not spray spaces more than half full. Fill large, concave spaces a layer at a time, a maximum of 5 cm each time. Do not use for enclosed spaces.
Slight moistening of the foam ensures quicker curing.
After curing the foam can be cut, sawn, sanded and painted. Do not remove spray attachment after use.