Concrete Mold Making: Veneer Stone Master Mold

In this tutorial we make a 75-80 rubber master mold that may be used to reproduce multiple veneer stone molds in 74-20 urethane rubber. Here's Polytek's video on the veneer stone mold: https://www.youtube.com/watch?v=i2YfVg9kub4
We molded an existing 74-20 veneer stone mold for concrete and made a mold of that mold using firm 75-80 Poly Urethane rubber.
75-80 rubber is available here: https://www.brickintheyard.com/products/poly-75-80-all-kit-sizes
74-20 rubber (for producing veneer stone molds) is available here:
https://www.brickintheyard.com/products/poly-74-20-all-kit-sizes

Видео Concrete Mold Making: Veneer Stone Master Mold канала Brick In The Yard Mold Supply