I have asbestos tile I want to encapsulate with vinyl tile, what are the steps?
The asbestos tile installed has probably been installed over an asphalt adhesive,therefore leaving it down is a good option. Use mortar base floor patch and 100% acrylic additive,trowel well mixed product over entire area to be installed.Let dry. Mix next batch with water and approximatly 1/4 acrylic additive. Trowling is kind of an art, you need a good flooring patch trowel to get it as flat as possible.Hand scrape filler after set becarful if sanding as a lot of products have crystaline cilica and you don't want to breath that in. This should work just fine as long as your existing tile is well bonded.