PVA on central heating pipes

[Pearlyman]

I'm in the process of restoring an old pine wooden floor...
Most of the floor boards were full of nail holes and I've successfully used a PVA/sawdust mix to fill them.
What I want to know, is whether I can use the same mix to fill the gaps around where the heating pipes go through the boards ?
My concern is whether the PVA/sawdust mix will be able to cope with the heat/changes in temperature that will occur when the central heating is running.
Any guidence, gratefully received.
Thanks.

 

[mcmoby69]

Buy some pipe collars. They are available to match different woods. Other than that coloured silicone.

 

[Pearlyman]

I was after a less obvious/more subtle solution, if possible....

 

[muggles]

A PVA/Sawdust mix will look blºody awful, if you don't want to use pipe collars (which actually look very neat http://www.raygrahams.com/products/109234-pine-solid-radiator-collar-15mm.aspx) then you could try to get some coloured silicone to match

 

[Pearlyman]

The PVA/Sawdust mix looks pretty good on the boards.
I guess it might not look so good around the pipes - though I'm not sure why that would be the case...
I just don't really want the 'finished' look that pipe collars will produce - and silicon will stand out more than a PVA mix.
If the PVA mix won't appreciate the heat (I have also read that PVA corodes metal), then what about a paper mache type solution ?!

My other option is to just accept the holes - which I guess is the default...

 

[big-all]

do not fill in the hole you need an expansion gap to stop the "clicking" --"banging"--"jumping"that takes place when metal expands or contracts when badly resticted

 

[Pearlyman]

Cheers Al.
I was wondering if that kind of thing might be an issue...
I was edging towards leaving the holes anyway - but I think that clinches it for me.
In truth, the holes aren't massively unsightly - it was more that having been so successful improving the look of the boards, by filling the old nail holes with the PVA/sawdust mix, I wondered if I could take it a step further.
I guess the key is to know when to quit