Lucie2026 Posted April 22, 2021 Report Share Posted April 22, 2021 Hello, can anyone explain why I might be having difficulties with some of my plaster moulds? Despite the moulds being almost completely dry each time I cast (porcelain) some areas of the cast wall are much thinner than others. The thin patches are always in the same location. Any advice would be very much appreciated. Link to comment Share on other sites More sharing options...
neilestrick Posted April 22, 2021 Report Share Posted April 22, 2021 Can you describe the forms and the thin areas, or post a picture? Are the molds themselves too thin in those areas? Commercial molds or home made? Link to comment Share on other sites More sharing options...
LeeU Posted April 24, 2021 Report Share Posted April 24, 2021 I would add that "almost completely dry" is not the same as being completely dried throughout & might be contributory to the problem. Link to comment Share on other sites More sharing options...
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