26 Questions on Expandable Polyurethane Spray foam Sealant , Insulation foam sealant
What is in the PU foam can and how does it work ? The can is filled with a group of chemicals .When these chemicals are combined during manufacture, a reaction occurs to create a prepolymer in the can that subsequently reacts with moisture in the air when it is dispensed —this is what creates the insulating foam sealant. What is a Expandable Polyurethane Foam Sealant ? Expandable Polyurethane Foam Sealant is dispensed as a frothy liquid which expands and moisture-cures into a solid foam insulation and sealant. One-component foam is used to fill and seal small cracks and voids such as around door and window frames, sill plates, electrical devices where air leakage and energy loss can occur. Formulations are available for general use and specific applications such as sealing windows and doors, fire blocking, and construction adhesive. Where can I apply PU foam sealant? Insulating foam sealants are useful for sealing holes, gaps and cracks around your home where air l...