I have been using resin for some time now. I recently purchase Sulphur Free Plasticene. I have been trying to make moulds and using blue tac and other products to stop the resin from spilling out. I gave up as nothing was working. When I saw the Sulphur Free Plasticene, and read the information, I decided to try it. I have never been disappointed with any of the products bought from Resin8. I have been using the Sulphur Free Plasticene for a few days now and have been up until the early hours of the mornings. I am so happy that everything I have been trying to do is now working. The Sulphur Free Plasticene is a must have when using resin and you will be so happy with the results. It also works well for keeping finding in place.