Now if this is under an old vinyl tile or VCT, its a black emulsion glue used to adhere the tile, not a mastic.2 precautions, one that if your vinyl is 30 years old, there may be asbestos in them, same but not likely with the glue.If they are this old,you may want to rethink what you want to do..
If there is a thin layer of ply wood over whats there now, its good, so you can get under that and remove that layer and then go from there.
Scraping will do little to get the glue up, only sanding and extra sand paper since these types of glue will clog the paper up quickly.. Any flooring questions you can e mail me through my avatar.. GLWhat could be black under squares of linoleum? Looks like could have been adhesive on top of hardwood floors?
It may be old, Before 1975 it contains asbestos. The glue, the tiles. You can not sand or scrape without problems. Most common was to install thin plywood on top of the hardwood and then the tile on top of the plywood. You may be able to take up the plywood and tile all at once. It may be better to put new hardwood on top of the tile and leave the old stuff alone. If you do decide to remove you will need to get professional help. You may have one of the most asbestos laden floors left over from the bad day of flooring. Sorry.
It is called mastic. It is a very tough adhesive. My experience is that you can scrape most of it off with a floor scraper or push hoe. Unfortunately this usually leaves the wood in pretty bad shape. The remainder will need to be sanded off and the floors refinished. It is a lot of work. I have refinished several wood floors and removing the mastic is the most difficult part. Are you sure there is a hardwood floor under this? The reason I ask is that you may find that if the original floor when the house was built was tile you may only have the subfloor under the tile.
im not sure but u can go to home depot or lowes
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