I have some pipes that have exposed, and they are very close to the surface of the wall, I have a good 5mm to sink in some bonding, but I was wondering weather it would stick? The other option is to box round it, but I would like it flush. Any takers?
bonding over copper pipeing
- Thread starter tuggers
- Start date
maybe lash a few layers of fiberglass tape over them first to help minimise cracking, or sheath over them with something if you can, Richard C had some good calcs of the expansion of the pipes at temp assuming they are central heating pipes.
The Bonding will stick alright but that will give problems with cracking if they carry hot water & subject to expansion/contraction; what were they covered with before?
The best way to avoid cracks is not to totally encase the pipes but allow them to move as they expand & contract. One method is to cover them with plastic cable capping & then plaster over that; it also avoids reaction of the plaster with the copper pipe. But if the plaster is too thin, heat transfer may still crack it.
The best way to avoid cracks is not to totally encase the pipes but allow them to move as they expand & contract. One method is to cover them with plastic cable capping & then plaster over that; it also avoids reaction of the plaster with the copper pipe. But if the plaster is too thin, heat transfer may still crack it.
Richard - would a self adhesive foam tape work to provide room for expansion ?
ie stick it to the pipe, and then plaster with mesh over that.
I suppose you'd have to have enough thickness still. I'm thinking of places where it would be hard to fix the capping if pipes are close together.
Not tried it but sounds as if it might work; the cappping is just one little trick I've used after getting cracking that seems to do the trick.
You can get capping up to around 50 or 60mm wide so that may cover it or even cut one side off the trim & overlap 2 widths; it doesn’t have to look good or be a perfect fit, just keep the plaster off the pipes allowing them a degree of movement behind.
I split plastic conduit and clip it over them.
hi not too sure about this one but a builder i work for if he has that problem he expanding foams the chase then the pipes can expande and contract in the foam and you can glue and skim on to the expanding foam.
oh yeah make sure to saw off the foam to flush haha forgot that salient peice of information, can someone else tell me weather this is a good way cos ive done it for this guy loads but never bin there once its painted to see if it does crack im guessing not cos its bin done loads of times
JRP
oh yeah make sure to saw off the foam to flush haha forgot that salient peice of information, can someone else tell me weather this is a good way cos ive done it for this guy loads but never bin there once its painted to see if it does crack im guessing not cos its bin done loads of times
JRP
That's a good idea, might try that myself; or even use those split radiator pipe covers
DIYnot Local
Staff member
If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.
Select the supplier or trade you require, enter your location to begin your search.
Are you a trade or supplier? You can create your listing free at DIYnot Local
