Good price, and produces excellent detail from the moulds. Follow instructions carefully, then you get a good texture. Dries hard, but can be brittle for very thin or shallow moulds. However, still works ok for shallow moulds just be careful extracting finished product. Very easy to use and very cost effective. Once a batch is made up, make sure you do not over produce as it goes a long way, a little bit of trail and error required. Product once dry is white and very easy to paint. have used Gedeo whiter esin quite a bit for stone walls for models. Results are excellent. I would certainly buy more of this when supplies begin to run low. The resin is a white powder and mix 1 powder to 3 parts of water, but follow instructions about sprinkling onto water. Powder comes in box with a bag and a good and useful tie-back.