missholly Posted February 23, 2011 Report Share Posted February 23, 2011 i have a slip mold that is a large native american pot. it has an embossed scene on one side. is it possible to sand it off? i know i could just make the vase and sand it off that, but id rather do it on the mold. with this hurt the mold? Link to comment Share on other sites More sharing options...
Tom Posted February 24, 2011 Report Share Posted February 24, 2011 Yes it is possable to sand a plaster mold. It may or may be a good idea. you may find it very hard to match the shape of the pot so that finished piece looks right. You might want to make a casting of the pot remove the unwante d parts then make a new mold. that way you will have far bettercontrol of the finished product then you would with sanding the plaster mold have fun with it Tom Link to comment Share on other sites More sharing options...
missholly Posted February 24, 2011 Author Report Share Posted February 24, 2011 Yes it is possable to sand a plaster mold. It may or may be a good idea. you may find it very hard to match the shape of the pot so that finished piece looks right. You might want to make a casting of the pot remove the unwante d parts then make a new mold. that way you will have far bettercontrol of the finished product then you would with sanding the plaster mold have fun with it Tom thanks tom. thats exactly what i wanted to hear. its a very lightly embossed image, so i dont think its going to have too much of an effect on the shape of the pot. i was just told to pour the mold and sand off the image from the pot. id like to try to get it taken care of to save me work later. thanks! Link to comment Share on other sites More sharing options...
Katran Posted March 1, 2011 Report Share Posted March 1, 2011 I bought a bunch of molds at an auction and alter them all the time. You can sand them off and carve in line designs, giving you the shape with your own designs on it. I carve large flat surfaces and work a soft slab into them giving me tiles with a raised design . You can also make small carvings, lay a porcelain slab onto the carvings and use for jewelry or sprigs. You do need to wear a mask when you sand and carve the plaster and wash the plaster off the mold and let it dry before you use it. Just be very careful not to inhale the plaster dust and keep it away from your clay. Link to comment Share on other sites More sharing options...
missholly Posted March 10, 2011 Author Report Share Posted March 10, 2011 well, i did it and it worked perfectly! Link to comment Share on other sites More sharing options...
Firemountaion Studios Posted April 16, 2011 Report Share Posted April 16, 2011 The place you sand off will absorb water faster, making that area slightly thicker in your finished piece. The mold will deteriorate faster where you sand it. The clay may not release from the mold the same in the sanded area, resulting in distortions. Link to comment Share on other sites More sharing options...
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