Popcorn ceiling is a term for a spray-on ceiling treatment popular from the late 1950’s into the 1980’s in American residential construction as well as some commercial structures. It was the standard for bedroom and residential hallway ceilings for its bright, white appearance, noise reduction qualities and ability to hide imperfections. I have found this to be
Treatment of asbestos-containing materials (ACM) with a sealant material that surrounds or embeds asbestos fibers in an adhesive matrix to prevent the release of fibers. A bridging encapsulant creates a membrane over the surface. A penetrating encapsulant penetrates the material and binds its components together.
Testing for asbestos in commercial properties.
Testing for asbestos in residential properties.