Anyone here removed their old acoustic ("popcorn") ceiling? Was it "raw" (as applied) or had it been painted? Mine is painted, and I'm looking for the best method to get water to penetrate the latex to soften the popcorn medium so it can be scraped off.
I've heard that the disadvantage of a painted popcorn ceiling is getting the water or other liquid solvent to penetrate to the popcorn medium. The advantage is that, if you can penetrate it, the paint tends to hold the glop together and bring it down in larger clumps, almost pulling itself off the surface. I saw a Youtube video of this in operation, with about 3/4 of a living room ceiling popcorn coating coming down in one piece.
I've seen suggestions like scraping the tops of the highest bumps on the surface before misting with water, or adding something to the water to help it penetrate before spraying, with vinegar, dish detergent, and fabric softener among the suggestions.
BTW, mine does contain some asbestos, so it'll be a meticulous negative pressure, sealed-room, moonsuit-equipped operation.
I've heard that the disadvantage of a painted popcorn ceiling is getting the water or other liquid solvent to penetrate to the popcorn medium. The advantage is that, if you can penetrate it, the paint tends to hold the glop together and bring it down in larger clumps, almost pulling itself off the surface. I saw a Youtube video of this in operation, with about 3/4 of a living room ceiling popcorn coating coming down in one piece.
I've seen suggestions like scraping the tops of the highest bumps on the surface before misting with water, or adding something to the water to help it penetrate before spraying, with vinegar, dish detergent, and fabric softener among the suggestions.
BTW, mine does contain some asbestos, so it'll be a meticulous negative pressure, sealed-room, moonsuit-equipped operation.
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