Specialty Resin & Chemical Model-Pro Black (1-Gallon) | 2-Part Resin Kit | Polyurethane Casting Resin for Models, Prototypes, Figurines, and Proofing Molds | Ideal for RTV Silicone Molds

Like water when mixed, then shortly when goes hard it is very quick. great product.Mix a once of each first to get a feel for it.

Mixes and pours so easy. About the consistancy of coffee cream. Cures very fast and doesn't have a problem doing so in my cold basement. Cured color has a little gray to it.

The only reason I didn’t give 5 starts is because it cures grey instead of black. The quality is hreat. Fast cure. Nice smooth finish.

Purchased this to replace some old Smooth-On Polyurethane that I had. Did a test for cure time, color and strength and it was not a deep black but more of a smoke grey. There where also a lot of micro bubbles that I normally don't get with the other manufacturer. Strength was about the same but slightly more brittle and this may be due to the cure time in my silicone mold. I also lowered the temperature on the cure and had better results on the strength but ultimately to correct the color had to add more black pigment to bring the black to my color standard. Ok for certain projects but not for commercial or high end hobby enthusiasts.