I need to waterproof a wooden sash window in the bathroom, to protect it from the shower.
It's already had a coat of oil paint, but from past experience that won't be enough in the long term.
I was thinking of applying 3 coats of Rustins Yacht Varnish. This does have the disadvantage of gradually discolouring over time, but would I imagine otherwise do the trick.
Does anyone have any comments on my plan, or suggestions for alternatives (I'm not interested in changing the window, or resiting the shower)?
Thanks for your help,
Chris