Plasterboard adhesive to fill a gap when drilling

[markyyyyyy]

I’ve been drilling for brackets today on a dot and dab wall and the plasterboard opened up a big gap, 3/4 times the size of the plug…. I have some plasterboard adhesive lying around ….

Considering I am hanging a heavy radiator, would it be ok to just shove a big blob of plasterboard adhesive in there, smooth it off and then drill into it once dry? I am not fussed by an overly smooth finish as it’s being wallpapered, so I can make it as smooth as possible and sand it off after

Thanks

 

[simplesteve]

I would cut the ' whole hole ' out, to get back to whatever the dot dab is onto. Then elongate it into a slot that's long enough and high enough for your brackets.
Then get the thickest piece of wood you can get away with and fix that with the proper fixings into the wall, then fix the brackets to the wood.
i.e. make a pad for the brackets.
( depending on what is through this wall, sometimes you can do it from the other side )

 

[Wayners]

You know about corefix?. Screwfix sell.

You need a large blob of adhesive to be able to drill into and will take over a week to dry.

 

[markyyyyyy]

You know about corefix?. Screwfix sell.

You need a large blob of adhesive to be able to drill into and will take over a week to dry.

That’s exactly what I’ve used

It’s ended like this and the front 40mm of real plug is loose

There is also another screw going in above hence the big gap

 

[RrogerD]

That’s exactly what I’ve used

It’s ended like this and the front 40mm of real plug is loose

There is also another screw going in above hence the big gap

Oh dear.
I would cut out the whole lot, affix a wooden plate / batten greater than the bracket size, the thickness of the gap behind the plasterboard. Or even, thickness to include the plasterboard thickness. Then, screw the bracket to the wood or, through the wood and into the wall behind. You can wall-paper over as you suggest or just paint.

 

[simplesteve]

dear.
I would cut out the whole lot, affix a wooden plate / batten greater than the bracket size, the thickness of the gap behind the plasterboard. Or even, thickness to include the plasterboard thickness. Then, screw the bracket to the wood or, through the wood and into the wall behind. You can wall-paper over as you suggest or just paint

That’s two of us saying that

 

[Wayners]

Or chemical fixing. Resin and threaded bar

 

[markyyyyyy]

I have cut and screwed some timber to the wall behind as suggested, Cheers for advice