Judy SA Posted January 23, 2023 Report Share Posted January 23, 2023 I have a round nickle bank mold that every time I pour it, it caves in (does not stay attached ) to the mold. The mold is very dry. What can I do to correct this? Quote Link to comment Share on other sites More sharing options...
Chilly Posted January 23, 2023 Report Share Posted January 23, 2023 (edited) Try pouring the slip out more slowly. If it fills the pouring hole, it will cause a vacuum and pull the lining with it. There was similar questions asked before, with other suggestions. I'll see if I can find them. Edited January 23, 2023 by Chilly corrections Hyn Patty 1 Quote Link to comment Share on other sites More sharing options...
Chilly Posted January 23, 2023 Report Share Posted January 23, 2023 Hulk and Min 2 Quote Link to comment Share on other sites More sharing options...
Judy SA Posted January 23, 2023 Author Report Share Posted January 23, 2023 (edited) Thanks, I'll try that. Thank you so much. That solved the problem. I learned something new! Edited January 24, 2023 by Judy SA Chilly 1 Quote Link to comment Share on other sites More sharing options...
Jeff Longtin Posted January 23, 2023 Report Share Posted January 23, 2023 An alternative solution: if thinning the slip doesn't help you might consider making the pour hole larger OR adding a second pour hole altogether. Years ago I made a mold of a Vanhool bus model. (I also made the model.) The mold was about 22" long and 8" square. I put one pour hole, at each end, to prevent a vacuum. Wouldn't you know the customer emptied it sideways and created a vacuum. When they called to complain I explained that the two pour holes were intended to prevent such a thing. They changed their method and all was well. Hyn Patty 1 Quote Link to comment Share on other sites More sharing options...
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