Repair fixings for radiator in brickwork wall?
Discussion
We took off a radiator for decorating. Unfortunately my other half removed the brackets, which in hindsight has meant all the fixing holes have failed - we have very weak backing plaster and lime mortar in our 1930s house.
As a result the holes have blown out significantly - eg 30mm + at the surface, meaning I can’t easily fix it. Worse the fixings I think by chance are sitting on a mortar line, and hence are like cheese and keep getting worse the more I do. I can’t easily move the brackets, and redrilling them and trying again seems to have resulted in the same result.
Anyone got any ideas of how to repair? Was wondering if a tonne of resin from a resin fixing kit would give me something to screw into? Or perhaps rapid repair mortar, although concerned it’ll just crumble. Anyone got any experience?
As a result the holes have blown out significantly - eg 30mm + at the surface, meaning I can’t easily fix it. Worse the fixings I think by chance are sitting on a mortar line, and hence are like cheese and keep getting worse the more I do. I can’t easily move the brackets, and redrilling them and trying again seems to have resulted in the same result.
Anyone got any ideas of how to repair? Was wondering if a tonne of resin from a resin fixing kit would give me something to screw into? Or perhaps rapid repair mortar, although concerned it’ll just crumble. Anyone got any experience?
hellorent said:
Would you then use with a threaded stud or just drill and screw?hellorent said:
just make sure measurement's are spot on as you don't get much time before it goes off.
Put it in the freezer for a bit before hand - had to do so on some outdoor jobs in the summer where it was setting within 20 seconds of leaving the nozzle.Learnt that trick the hard way working on a frozen roof at 3am mid December and it taking forever before I could pull test.
Put the brackets in place, mark round them on the wall, then put resin in the holes, put the brackets in place to the marks on the wall and push the threaded rod through the bracket and hold until it sets.
This will make sure you get the studs spot on....
Perhaps put some parcel tape on the back of th bracket so the resin doesn't bond the bracket to the wall in case you need to remove it...
This will make sure you get the studs spot on....
Perhaps put some parcel tape on the back of th bracket so the resin doesn't bond the bracket to the wall in case you need to remove it...
My solution
I used a large diameter hole saw, say 50mm + and drilled out the area surrounding the failed hole down through the plasterboard and lime plaster.
I filled the area with Toupret Murex (resin based filler) and then redrilled and fitted the new fixing.
Works very well and the Murex is perfect for the job.
Toolstation and Screwfix have it in stock.
RGG said:
My solution
I used a large diameter hole saw, say 50mm + and drilled out the area surrounding the failed hole down through the plasterboard and lime plaster.
I filled the area with Toupret Murex (resin based filler) and then redrilled and fitted the new fixing.
Works very well and the Murex is perfect for the job.
Toolstation and Screwfix have it in stock.
That’s innovative.I used a large diameter hole saw, say 50mm + and drilled out the area surrounding the failed hole down through the plasterboard and lime plaster.
I filled the area with Toupret Murex (resin based filler) and then redrilled and fitted the new fixing.
Works very well and the Murex is perfect for the job.
Toolstation and Screwfix have it in stock.
I am also thinking 18mm ply or similar cut larger than bracket, screw that to wall, allowing me to put fixings wherever. But it brings it out 18mm so likely would need to adjust rad piping.
Pheo said:
That s innovative.
I am also thinking 18mm ply or similar cut larger than bracket, screw that to wall, allowing me to put fixings wherever. But it brings it out 18mm so likely would need to adjust rad piping.
I am also thinking 18mm ply or similar cut larger than bracket, screw that to wall, allowing me to put fixings wherever. But it brings it out 18mm so likely would need to adjust rad piping.
If it’s hidden behind the rad you could sink that into the plaster?
Someone (maybe Plasplugs) used to do a hefty squashy plug which expanded as the screw was tightened which I used regularly in a house we had with crumbly breeze blocks but they don t seems to make them any more. If you re working in a mortar gap years ago builders just used to hammer bits of wood in and screw into those.
Fatboy said:
Put the brackets in place, mark round them on the wall, then put resin in the holes, put the brackets in place to the marks on the wall and push the threaded rod through the bracket and hold until it sets.
This will make sure you get the studs spot on....
Perhaps put some parcel tape on the back of th bracket so the resin doesn't bond the bracket to the wall in case you need to remove it...
That's similar to what I did when I needed to fix some very heavy aerial brackets on a wall. I drilled the M6 mounting holes in the bracket first, then I drilled a small hole in the bracket and wall to temporarily fix the bracket in place using a rawlplug and screw. I then used an SDS drill through the mounting holes to drill the main holes in the wall, and used an air line to blow the dust out. Finally I squirted the resin in and pushed the threaded rods in their final positions, and left it to set (overnight I think). I then spun on the nuts and it was done! The main thing was being careful to keep the resin off the exposed threads, although I imagine a brush on a grinder would get it off if necessary. I used some grey and silver stuff from Toolstation, in a green tube I think.This will make sure you get the studs spot on....
Perhaps put some parcel tape on the back of th bracket so the resin doesn't bond the bracket to the wall in case you need to remove it...
Pheo said:
RGG said:
My solution
I used a large diameter hole saw, say 50mm + and drilled out the area surrounding the failed hole down through the plasterboard and lime plaster.
I filled the area with Toupret Murex (resin based filler) and then redrilled and fitted the new fixing.
Works very well and the Murex is perfect for the job.
Toolstation and Screwfix have it in stock.
That s innovative.I used a large diameter hole saw, say 50mm + and drilled out the area surrounding the failed hole down through the plasterboard and lime plaster.
I filled the area with Toupret Murex (resin based filler) and then redrilled and fitted the new fixing.
Works very well and the Murex is perfect for the job.
Toolstation and Screwfix have it in stock.
I am also thinking 18mm ply or similar cut larger than bracket, screw that to wall, allowing me to put fixings wherever. But it brings it out 18mm so likely would need to adjust rad piping.
Some similarities to yours - Just drilling out everything down to the brick enabled the resin filler to take the place of the plasterboard, void and lime plaster and provide an immensely secure base for the fixing to go in.
The thing is it's so simple to accomplish.
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