Copper pipe in the wall

[JohnBishop]

Hi All,

I have a copper pipe in the wall installed by the plumber (15mm cold mains), but now I have to fill the void with something.

What should I use for that? Bonding 60, BondingCoat or simply MultiFinish?
Best regards

Edited April 13, 2023 by JohnBishop

[Andehh]

Expanding foam? 

 

Whats the void made up of, any pics? 

[JohnBishop]

  On 13/04/2023 at 19:46, Andehh said:

Expanding foam? 

 

Whats the void made up of, any pics? 

Expand  

I just cut out some plaster and a bit of brick with an angle grinder to run the copper pipe. It's maybe 18-22mm wide.

Edited April 13, 2023 by JohnBishop

[PeterW]

Something not cement based so it doesn’t corrode the pipe.. How deep is it ..?

[JohnBishop]

  On 13/04/2023 at 21:14, PeterW said:

Something not cement based so it doesn’t corrode the pipe.. How deep is it ..?

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It's pretty shallow just so the 15mm pipe is hidden, I would say 18-20mm

I put tiles or panels on top.

[johnhenstock83]

easi fill 60 is what you need! are the pipes insulated?

[JohnBishop]

  On 14/04/2023 at 10:32, johnhenstock83 said:

easi fill 60 is what you need! are the pipes insulated?

Expand  

ok

no, it's just wrapped in tape

[JohnBishop]

This is the pipe.

I have covered it with PVA all around but if I put tiles or the multipanel on top maybe I can leave it (the void) like that, no?

[Nickfromwales]

Leave as-is. No need to do anything more tbh. Exp foam would be my only suggestion as it is a cold mains so maybe you'd get condensation forming on it. 

Remove the clip, fill with foam ( behind the pipe ) and hold in place whilst the foam cures. You won't need the clip afterwards, the foam will grip it perfectly well, if not better!

[Onoff]

Low expansion foam even better.