Developed over 25 years ago for industrial casting. The product quickly became a staple for glass casters as well. R&R GLASS-CAST 965 is not as strong as 910 investment and is more permeable. Casters have noted that this makes it easier to remove from their finished pieces. This investment is ideal for medium to large size molds. Packaged in a 50 lb carton.
Posted by Unknown on 29th Aug 2016
Use this product a lot. No negatives at all.