Stix2 Non Stick Crafting Sheet  in A4! This will withstand very high temperatures and is non pourous so will protect your work surface. It will not let any paint or heat through.

Embossing enamel, candle wax, soap chips and even hot glue will not penetrate or distort its smooth finish. Any excess melted product once cooled can be easily removed , wipe down, clean up its  quick and easy. Good as new each time.