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  1. 11th May 2011, 03:38 PM #1
    Lis_n_Luke
    Lis_n_Luke is offline New Member
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    Default How do I seal and/or waterproof Burnt Timber?

    Hi there!

    I am relatively new to woodworking, and would appreciate the thoughts of your learned members.... A friend's home was lost in Kinglake in the Feb 09 bushfire mess, and it's replacement is nearly finished. (yay!) I make water features, usually from metal found objects, but I have a gorgeous piece of salvaged timber, that I would like to make into a water sculpture for them. Most of it's surface is burnt or scorched, and this is the effect I want (Water running over the burnt surface to 'heal, renew, refresh' etc) So I am thinking of a poly type finish, but think these would only seal as a 'layer', and probably 'flake' the charring off eventually. Could I use an oil product to penetrate, then seal the whole thing over? Am I just being ridiculous? I would appreciate any thoughts! Thankyou, Lis
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  3. 11th May 2011, 10:59 PM #2
    Master Splinter's Avatar
    Master Splinter
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    Default

    Nothing is really going to sink in to any great degree unless you go to the extremes of treating it in a pressurised container to some sort of vacuum/several atmospheres pressure cycle. 'Penetrating' oils only really get in a few mm and aren't all that good at waterproofing anyway.

    Best achievable suggestion would be to do what the wooden boat people do - a couple of coats of marine epoxy to seal and waterproof, followed by varnish over the epoxy to protect the epoxy from UV.
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  4. 12th May 2011, 05:57 AM #3
    Barrie Restall's Avatar
    Barrie Restall
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    If you have some bits to run some tests on, try sealing/stabilising it with dilute Bondcrete before using a synthetic finish (marine varnish etc).

    Cheers

    Barrie
    This bit should be completely ignored, although I know that despite this warning, you will read it through to the very end.
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