Gun Grade Expanding Foam 750ml

Quick setting one part polyurethane Expanding foam in aerosol form. The foam expands on application to 150% its original volume. It can be cut, sawn and plastered upon within one hour of application. 

The polyurethane Expanding foam is designed to fill irregular gaps in stone, brick and concrete. It can also be used to fill gaps around window frames and door frames. The foam also helps insulate both thermally and acoustically.