Construction Foams are a “Gap Filling” Polyurethane Foam from a pressurized canister. They generally use a flammable gas as a propellant to get the product out of the canister.

Expanding Polyurethane Foams have the following attributes:

• Expand 
• Insulate (when at a specified depth), both Thermally and Acoustic
• Do not damage Polystyrene Foam 
• Adhere to many substrates & will not cause damage
• Can be shaped and cut
• Can be over-coated with many sealant types
• Are moisture cured. If there is not sufficient moisture in the air then we need to add moisture.
• Are not UV stable under normal outdoor environments.
• Once the outer skin is broken the product will allow some moisture to penetrate.
• Can be painted.
• Can be built up in layers if you need to fill a void, allowing each layer to cure before applying the next (prevents new foam causing the collapse of the foam structure to “PU Gel” mess in the base of the void)