June 7, 20233 yr I've stuck a bit of plasterboard to the top of a window reveal, braced it with a couple of lengths of timber and screwed into battens where I can. I'd general use a PU adhesive, which dries in 10-15 minutes but I'm fresh out. How long will I need to leave the bracing up before I can attend to the sides? (please don't say 24 hours )
June 7, 20233 yr Gripfil is pretty much instant unless you are holding a lot of weight, 30mins should be more than enough
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