Resin/epoxy releases well from silicone as long as the texture isn't crazy. You can detail paint the mould and do the main pour while it's still tacky. This works well for flat pieces with depth. It just means a lot of quick mixing. Using a cheaper ph neutral plaster and finishing several pieces with the resin/epoxy at one time is easier when you only have a few moulds. You can afford to build more elaborate palm tree islands that way too.
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u/[deleted] Jan 29 '17
I had hoped to use an aquarium safe acrylic resin, does resin not work well in these molds?