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1 vote

How do I pour *just* the right amount of plaster into these molds?

Something to add for your project, if you haven’t already, is to apply a release agent to your molds first, which can be using a aerosol release for plaster and concrete projects. You'd spray a small ...
Eddiewgo2's user avatar
1 vote

How do I pour *just* the right amount of plaster into these molds?

I am reading this as a volume question: how do I mix just enough plaster to fill the molds, but not too much to produce waste. If that is the case, experiment with rice first. Pour rice in to the ...
Drew Rounsville's user avatar
7 votes

How do I pour *just* the right amount of plaster into these molds?

What I would do: Drill holes in the top plexiglass so that there is one hole per part in your mold. Fill each mold with plaster until it is almost full but does not overflow. Place the top plexiglass ...
ferritin's user avatar
1 vote

How do I pour *just* the right amount of plaster into these molds?

Getting the mould to lie flat during the pour should allow you to gauge the fill by eye. I would avoid moving it while full, so first place it on your base sheet. The first thing I'd try - but I ...
Chris H's user avatar
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5 votes

How do I pour *just* the right amount of plaster into these molds?

The first answer that comes to mind requires a bit of experimenting and also requires that your mixture be consistent in terms of water content. You'll need a gram scale with the capacity to hold the ...
fred_dot_u's user avatar
  • 7,599

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