There is an assortment of expanding foams and foam guns by Everbuild, Faithfull and Polypipe.
Among the Everbuild expanding foam products is the great stuff pro gaps and cracks foam filler; a moisture curing polyurethane foam that is ideal for filling gaps and voids.
Also available is an Everbuild gun grade foam that is quick setting and economical in use, it can be used to fill broad and irregular gaps where most conventional fillers would fail.
Faithfull’s foam spurt gun is a professional quality gun designed for applying single component polyurethane foam.
Polypipe Polyplumb polyurethane expanding foam glue is suitable for use with the Polypipe overlay heating system.