Forum Title: oversanded durabond
Hey guys, Im a member of Paint Talk, and looking for some suggestions on how to correct a mistake i made. After cutting out the plaster and lathe under these windows, i put in in sheetrock and used Durabond 45 for the first 2 coats then skimed with pre-mix. Despite my efforts to avoid too much biuld up at the edges of the patch, I left a hump which i aggressivley sanded back down leaving a glassy surface at the edges of the patch. Heres the problem. 2 days after priming, I ran a piece of blue tape under the window to paint the bottom trim piece, and when i removed the tape it took the primer with it, but only at the ends where I had to sand it down. I then tested other areas with the tape, and sure enough, it was only the areas that had humps, which where sanded out. I have no doubt that this happend because the durabond had been sanded to a glossy surface which prevented the primer from bonding. I now have scraped off the primer that had not bonded, and my thought is to either re-prime these areas with a bonding primer (STIX), then skim again to level scrapes edges. or can I just skim first? will compound bond to the oversanded durabond? Any suggestions would be helplful.
Category: Drywall Post By: SUSAN GARCIA (Santa Monica, CA), 02/14/2018

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