Update: Water based polyurethane varnish is now officially endangered in the UK. Ronseal and, I believe two other big manufacturers, have dropped it from their range in the last year. A chat with someone in an independent shop confirmed my hunch that polyurethane just isn't a sexy branding choice. There are more and more acrylic and spirit branded varnishes on the shelves but it looks like 'poly' is out of vogue. Poor poly. It is still available in the UK from at least two sources and I hav