Thanks for the reply. The foam i used was purchased from Screwfix and called Insta Stik, i found it expanded with very little pressure like builders foam, the reviews on the screwfix site are very true and honest. I would use this product again.
I was going to screw into the adhesive dots but was told about a plasterboard foam adhesive. I drilled holes into the hollows in the board 1.5mtrs apart and injected the foam. Best thing ever it found its level and went solid after 10hrs, well chuffed its like rock now. The plasterer wanted to cut b...
I had Dot dab walls installed last December and the plasterboard has come away from the dots in a good area of the wall. I was thinking about drilling a few holes and spraying expanding foam into them which i know sticks to anything. Has anyone else had this problem?