Where to buy polyurethane resin/foam in UK?
Do any UK people know of nice suitable places to purchase the two-part polyurethane resin that mix together for making casts from moulds? Or the polyurethane foam that expands a bit when it cures? There's two places on eBay (TOMPS and another) but at Â£24 a kg with high postage costs, I was wondering if there's any bricks & mortar places I can pick it up, or other online places to buy the foam?
I'm using it to thicken the shell of a Pepakura helmet so there's stuff to sand down. Any pointers please?