DIY Frequently Asked Questions / Plaster of Paris
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DIY Frequently Asked Questions / Plaster of Paris')">
Is a quick-setting white powder used to repair wallboard, plaster walls and ceilings, set bathroom wall fixtures—towel racks, soap dishes, etc.—and for art projects. - It usually hardens within 30 minutes.
- No more water than necessary should be added; when water evaporates, the plaster shrinks.