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I'm working on an old house with horsehair plaster walls and ceiling. I'm attaching some loose plaster with plaster washers, which protrude from the wall about 1/8" after they are installed. The plan is then to skim-coat plaster over the wall, deep enough to cover the plaster washers.
I'd like to use Plaster Weld, a sort of bonding agent that you roll onto the wall to make sure that the new plaster adheres properly to the old wall. BUT, the Plaster Weld container, and the website instructions, say to use a 1/8" finish plaster coat on top of the Pllaster Weld coating. They don't say if the 1/8" is the minimum or the maximum finish coat to put on.
I have put this question to the manufacturer, but it doesn't appear that I'm going to get an answer as soon as I need in order to keep going on this job.
Does anyone here have experience with this product? can I put on a 3/16" thick finish plaster coat, which would be thick enough to cover theplaster washers, and be OK?
Thanks for your help