Hey, there are quite a few threads about this. But still a bit unsure. I'm gluing drywall to plastered concrete today. I've bought a suitable adhesive in a tube. But neither the instructions on the adhesive nor other info explain how the board should be held in place during curing.
It probably won't "stick" like a tile with adhesive immediately. Should I use plugs and screws to temporarily screw the board with a few screws to apply pressure?
I only have just over two meters to the parallel wall. So I could also cut two studs to place parallel to maintain pressure for a while?
I would probably place studs between the other wall and the boards, standing studs on the boards and horizontal ones between them and the wall. But if you have enough glue, they should hold pretty well without studs.
Is the plaster okay? Does it crumble if you run your hand over it?
No, the plastering is good and even. The rest of the plastered walls will be fully spackled. Only this small piece needs to be plasterboarded to level with the extension of the wall.
So the first board is screwed into the studs, and the last piece is glued, creating an overlap of about 30 cm.
Then there's barely one and a half boards that should just be attached with glue.
I'm using Sikabond 500. I have two tubes, so I can use one tube per board if needed, no need to be stingy.
Felt the plaster now, and sure. It actually crumbles a bit. Have torn down some of these walls, and the plaster is hard as nails. But crumbling can affect adhesion. Will try brushing/vacuuming it thoroughly.
First board up, definitely going to need more glue. Used half a tube on just a 30cm board.
Not sure if I overdid the amount, but I actually don't think so
Yes, I have also solved this. But I had already bought the relatively expensive glue. So I'll probably just finish with that now. There is so little that needs to be plastered. And I avoid mixing.
But the plaster is out. So I'll have to go and buy more first. And another tube of glue too.
I have glued plasterboards to plaster and brick with gypsum mortar, with good results. It's cheap and lasts long too. 129 SEK for a 20 kg bag at Byggmax.
Have read quite a bit about tile adhesive. As someone previously mentioned, it's good enough for tile on plaster/concrete/brick. It's good enough for tile on gypsum. So it should be good enough for gypsum on concrete. Wildly guessing that the board will "stick" to the wall with this too, so you don't have to put the board under tension. Now I fastened mine with panel adhesive, when the studs ran out, I plugged and screwed right through the last board after it was glued in place. Went pretty smoothly both times.
I don't really know how long it should set. But I think it should sit like this for a day.
PS. The panel adhesive smells quite strong for a couple of hours. So to ensure good ventilation for a while should be remembered for next time.
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Stefan N said:
