Plaster and Resin Premium resin, epoxy colors and molds for making art and crafts › Forums › Resin finishing › Plaster and Resin This topic has 1 reply, 1 voice, and was last updated 4 months, 4 weeks ago by Katherine Swift. Viewing 1 reply thread Author Posts October 22, 2022 at 9:54 pm #146106 Reply BritGuest Hello! I understand that you should use a flexible mold when using resin to cast, but I have a plaster mold I’m using and wanted to use a clear resin to create a galaxy look. If I break the plaster mold around the resin, would that work? October 23, 2022 at 7:35 pm #146254 Reply Katherine SwiftKeymaster Hi Brit, I’m afraid plaster molds don’t work for resin. Author Posts Viewing 1 reply thread Reply To: Plaster and Resin Your information: Name (required): Mail (will not be published) (required): Website: Cancel Submit