randallvfx Posted January 16, 2023 Report Share Posted January 16, 2023 Hello, I just moved from Canada to USA , and my wedging table (which I made) has diagonal cracks in all four corners. It was obviously dropped. Is there any way to fill the cracks and smooth out if there are alignment issues? any advice appreciated! Best Randall Quote Link to comment Share on other sites More sharing options...
Min Posted January 17, 2023 Report Share Posted January 17, 2023 Post a picture of the damage, might help with getting an answer. welcome to the forum. Quote Link to comment Share on other sites More sharing options...
neilestrick Posted January 17, 2023 Report Share Posted January 17, 2023 Plaster? Quote Link to comment Share on other sites More sharing options...
oldlady Posted January 17, 2023 Report Share Posted January 17, 2023 welcome to the usa, randall. this is a great group. if you can nail a piece of 5/8 clear plywood to the top, you will have a great wedging table again. Quote Link to comment Share on other sites More sharing options...
Russ Posted January 17, 2023 Report Share Posted January 17, 2023 Smart move Randall! Welcome to the good ol' US of A. Quote Link to comment Share on other sites More sharing options...
neilestrick Posted January 18, 2023 Report Share Posted January 18, 2023 Patching cracks in plaster is difficult if not impossible. I vote for covering it with a piece of Hardiebacker. Piedmont Pottery and Kelly in AK 2 Quote Link to comment Share on other sites More sharing options...
Kelly in AK Posted January 18, 2023 Report Share Posted January 18, 2023 1 hour ago, neilestrick said: covering it with a piece of Hardiebacker. Strongly second this advice. Quote Link to comment Share on other sites More sharing options...
Jeff Longtin Posted January 19, 2023 Report Share Posted January 19, 2023 Patching plaster is tricky but here's the technique: Mix a little bit of plaster to a thin/watery state. Spoon it, or pour it, into the hole/crack. Watch as the water is absorbed out. Use a scraping tool to level it off. (More than likely, however, the plaster will shrink as the water is absorbed.) Apply more thin plaster. Again, watch as the water is absorbed and the plaster shrinks. Again, use a scrapping tool to level it off. If your original mix is still not set, yet, use it to apply a thrid coat. As the mix has probably stiffened, simply apply it and IMMEDIATELY use the scrapping tool, to get a nice level surface. (If you do not scrap this third coat immediately it will harden very quickly and it will be difficult to get a smooth/level surface.) The bummer with filling old plaster with new plaster is that the new plaster may have a different absorbtion quality than the old plaster. I thought it had to do with the thinness of the new coat but even using really stiff new plaster results in absorbtion differences. (This is most evident in a slip casting plaster mold. Probably not a big issue on a wedging table.) If you're hoping this plaster repair method might be useful to "glue" two pieces of plaster together it is not. Once dry the two parts will separate again. Quote Link to comment Share on other sites More sharing options...
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