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I'm hoping someone can help me with this. A very long time ago I attended a workshop in which the presenter made a large Easter egg using plaster of Paris. He made a solution of p. of P. in a glass coke bottle, then fixed an inflated 6- or 9-inch round balloon over the mouth of the bottle. He then inverted the bottle, allowing the p. of P. to flow into the balloon. After making sure that the balloon was evenly coated, he removed the then solid balloon and peeled away the rubber balloon. What remained was a perfectly formed egg which could later be scratched upon to cut out a window, and thus, form a shell for a diorama. I remember this part of the workshop clearly. What I do not remember is the proportion of p. of P. to water (other than the coke bottle was about half full). I know nothing about plaster of Paris. Can anyone tell me (1) what proportions of materials to use and (2) if a plastic water bottle would do in place of the coke bottle?
Artme On 2/23/15, Dale D wrote: > I'm hoping someone can help me with this. A very long time > ago I attended a workshop in which the presenter made a > large Easter egg using plaster of Paris. He made a solution > of p. of P. in a glass coke bottle, then fixed an inflated > 6- or 9-inch round balloon over the mouth of the bottle. He > ...See More
Feb 25, 2015


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