Hey all, I'm carving out a stone effect wall using polystyrene. I need a hard, durable top coat as its probably going to get touched a fair bit by visitors in the exhibit it will be in. It can't be in GRP, but I've looked at the possibility of using Jesmonite or even the reinforced stone vacform from Peter Evans. I've come across a product in Flints called Styro-plast, I was just wondering if anyone has used this before or could possibly recommend anything else that would be hard wearing enough? Thanks.