Polytek's polyurethane, silicone and latex rubbers are the mold materials of choice for high-volume veneer stone production (manual or automated manufacturing).
All three rubber options capture excellent surface detail and polyurethane and silicone rubbers offer exceptional dimensional stability for this process.
In the following video tutorial, we demonstrate how to make a "block mold" with Poly 74-20 polyurethane rubber that can be used to reproduce decorative concrete veneer stones.
Poly 74-20 might not always be the best choice for your unique application - please reach out to Polytek Technical Support for assistance.