Expanding foam

[f49h]

Hi guys
I am getting a external boiler fitted. I was thinking of using expanding foam to fill the gaps where the pipes go through the wall. Will the foam attack the copper pipes. Any ideas of any suitable method of filling the gap

 

[Dan Robinson]

Foam is fine but generally not UV proof and looks rough when not finished with something more traditional.


Alternative would be a putty or mastic that come in a myriad of colours.

 

[Plumber90]

Will be absolutely fine mate, if not every new build these days will be in a bad way soon as they use it to seal around everything.