Whilst researching on the forum, I saw a post from last summer by Biggles1957 where Osmo Oil is recommended for Traveller wood, and it sounds from the original post that the clear option would do exactly what I want for Hetty - protect from water and UV but not add any real colour to the wood so it stays nice and light.
I think this must be the one that was referred to in the post (as none of the other options on the site seem to specifically mention UV) http://www.osmouk.com/previewpage.cfm?b ... 7&page=121
Has anyone got any feedback on this product on Traveller wood?
And also, what are biocides and do I need them?

Thank you!
Emma