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View Full Version : Getting a perfectly smooth life casting


hchinks
07-23-2016, 06:40 AM
Hi all,

First time poster here, and I've got a question.

I have my own business I started 6 months ago doing 3d casts, holding hands casts, a few pet paw casts and I have now completed my first ever adult life casting (a female bottom) and would like some advice/help if you would be willing to.

I have done the cast using alginate and have layered the inner with plaster and material to strengthen it and it's great. However I have sanded the bottom itself and it's pretty smooth but there are some obvious imperfections that I want to get rid of. I've sprayed it a number of times and if anything the metallic bronze colour brings out the imperfections more.

I want to acheive a perfect mirror glass smoothness, but despite me sanding, filling (repeat etc), I am struggling, and there are still plenty of indentations/marks showing.

Is there anything I can apply over the plaster to give it a smooth finish? Thicker clear gesso? Then spray over the top again? Or is it a matter of getting the finest sandpaper I can and spending a lot of careful time?

Any help much appreciated! Hope you can help. Pic attached.

Helen x