Will No-Nails hold electrical boxes?

CarBodyFilla is your friend. Or epoxy mortar..

Gripfil and the rest will probably slide around a bit too long to allow you to get the box flush with the wall easily. I prefer to position the box with a couple of blobs of car body filler and fill later.

Blimey, beaten to it by the president of the body filler fan club :-)

Andy might prefer Aunty Betty's Aerial Socket Filler, which comes with a colour co-ordinated range of protective clothing and full technical support.

Normal thing to use is quick set mortar. You'll get ready mixed bags of it at most sheds and electrical wholesalers.

I imagine the OP might have knocked through to the cavity to run the cable and will be relying just on the sides for adhesion. If it's a neat hole there may not be a lot of room for cement or plaster to get a grip.

Car body filler will set you free. Find true salvation today!

Sorry but car body filler has no structural strength what so ever for such a task, talk about being attached by a wing and a prayer! What's wrong with a screw and packing (if you've chopped out to much masonry?

Am I doing something wrong using screws and wallplugs to hold my boxes in? ;-)

Owain

That was a bit unkind. What's Aunty Betty done to you?

Another convert to the RUCBF club.

A true convert.

Are we going to have Come to David's meetings?

Thanks for all the replies so far. I've not knocked into the cavity, just made a square recess into the brick. Even if I say so myself, it's a nice neat job. The hole is a snug fit and the right depth for the box. Took me ages to do mind and it might yet break apart when I drill the cable hole. Those bricks are b***y tough.

I'd not thought of car body filler which is surprising having rebuilt many 1960's car wings, doors, boots, etc. I thought of No-Nails as the box fits the hole so well. There's only a couple of mm clearance at the worst point. The quick setting mortar looks like the thing for me though. I've not come across it before.

John

Yes, bring your credit card

Is that Isopon or Plowman?

You don't need structural strength, you're only holding the thing in place. The reason bonding plaster is used is that it's easier to position the box accurately. Put a few coach bolts in after it sets if it's going to trigger an anxiety attack

Do you take Amex?

Interestingly, B&Q does, but Wickes doesn't.

Implication is that B&Q prices are at least 3-4% high if they can fund that out of margin.

Isopon definitely. Mr. Plowman is far too modest to want to be the Billy Graham of the DIY world.

You might get away with it for light switches etc. but when someone tries pulling the plug from a socket with 'very healthy' contact wipers - I've seen more than a few times where someone has though they can glue a backing box in, only top find the plug, socket and backing box come away from the wall in their (or some else's) hand and be left dangling by the cable(s)!

No, it says too much about me that cash can't

Yes. Only works in Scotland with the granite walls.