I dismantled the roofrack outside dubmonkies house to get it in the car. I then sanded each of the wooden slats to remove as much of the old varnish as possible. This left a nice redwood. I then used a yacht varnish from a well known company. It did exactly as it said on the tin
Semen is such a persistent stain. League of Gentlemen: The Dentons House Rules - BBC 2.22 - sorry couldn't resist - one of my all time favourite lines.
I'm not sure Mango, the stuff we got, Le Tonkinois, was off of the interweb. Just ggogle it, but here's one link I got just a sec ago. Its good stuff so it is.. http://www.letonkinoisvarnish.co.uk/
by weather protection i meant sun as well as rain. most varnishes fade and peel more when left in the sun for long periods. the yacht varnish should protect the best
You can stain and seal with yacht varnish. Yes B&Q sell it. The oil will penetrate and thus will not peel and will give UV protection.