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We are aware that popcorn texture can contain asbestos and every user should do their own homework, but this ceiling did not contain Asbestos. While Asbestos is dangerous, saying "most" popcorn texture contains asbestos is a misleading statement. Age of the house is usually a better indicator as asbestos was banned in 1978 with the exception of the inventory. Thus houses in the 80's could still be liable to have asbestos. I mention this because the previous house I removed popcorn texture from was built after 2010. https://en.wikipedia.org/wiki/Popcorn_ceiling
Plain water. Hot to warm is said to work best. Wet but not dripping. Try to avoid dripping in my opinion..
I'm not for sure, but as cheap as a 5gal bucket of sheetrock mud is, I would probably just buy something meant for doing the skim coat. I'm not sure what a layer of kilz will do for you unless you are trying to get rid of some smell like smoke, but we did not do that.
Before you try anything I would get a sample tested for asbestos. A lot of people will paint the popcorn if they know it has asbestos in it as this is seen as an acceptable way to seal it in. If it does you've got a lot of work and expense ahead of you to get it removed, but you will most likely get to start fresh with new sheetrock. If it is asbestos free it's probably going to be a slow process to remove it. Depending on how you want your ceiling to be finished, may offer a different option instead of removing it. Some people will cover it with wood for a different look or you may find it's faster to just remove all sheetrock on the ceiling and replace with new. Sheetrock isn't all that expensive, but getting a contractor to give you options and an estimate is probably the best route.
I'm sure there probably is other things out there, but water is super cheap and easily available. Any cheap garden sprayer will work as long as you haven't used it for chemicals. Easiest to just buy a new one as they are cheap. At first you have to let it soak in for a few minutes, but after some time you get an eye for how wet it needs to look for easy removal. A nozzle on the shop vac would be nice, but rather difficult to rig up for intermittent use. If it was a commercial product I could see how you could integrate it easily.
Popcorn Ceiling Removal Tool
Totally agree. While protective clothing is a good idea, I would actually suggest if you own an older home you should have it tested before taking on this sort of project.
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