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Clear timber preservatives

I bought a new shed last year and although the manufacturer says it doesn't actually need any treatment for at least 5 years I would prefer to err on the safe side.  The 'problem' is that we really like the light timber and don't want to use a coloured stain/preservative on it.

Does anybody have experience of any clear preservatives, good or bad, which they would like to share?


  • WelshonionWelshonion Posts: 3,114
    SX70 by Sovereign. Tanalised timber is only good for one maybe two years, whatever they say.
  • Victoria SpongeVictoria Sponge WearsidePosts: 2,941

    I used Burgess Marine Clearsealer on my hen house and shelter. It dried a bit shinier than the wood stain I'd already used but nothing crazy. Supposedly it is not as good at protecting against the sun as a woodstain. 

  • Properly tantalised timber is good for a long time.

  • KT53KT53 Posts: 4,592

    I'll have to check with the people I bought the shed from and see what they say.  Thanks for the help.

  • WelshonionWelshonion Posts: 3,114
    Properly tanalised timber, yes. The usual tanalised timber that is supplied, no!

    The main indicator is to look at the ends of the planks and see how deeply the chemicals have penetrated.
  • We used a clear stain designed for yachts on ours, I cannot remember the name though sorry. We did manage to get it from a local DIY store though if that helps!

    We found it very tough wearing and durable - as it would need to be I suppose.


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