Hi all, I have made a few pieces of furniture using the glass cast 50 epoxy. I have managed to sell them to a customer too which is great news, however, I am a little worried about the longevity of the product while in use. I have managed to scratch it quite easily and being a clear cast (no pigment tints) scratches are quite noticeable. I obviously don't want for them to yellow over time , so I was wondering if anyone out there has tried coating them in something like lacquer, and if so which product? 
I'd love for them to be a little more scratch resistant and UV light resistant before they leave to the customer ... Any ideas?
Thanks very much for any help
Nick