Soudal B3 Expanding Filler Foam is a self-expanding polyurethane foam that adheres to all common building materials. It is resistant to water, heat and ageing and has excellent sound and heat insulation value.
Perfect for general fixing.
Can also be used to fill and insulate window and doors frames.
Can be used both indoors and outdoors.
Offers extra security because of the less flammable component.
Can be cut, sanded, plastered, and painted after full cure.