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Mastic Asphalt Adhesive - Remove or Cover?

Posted: Mon Feb 17, 2020 1:19 pm
by IanB73
I have lifted some lino (about 2 layers) in a house i am renovating and there seems to be black adhesive left on the concrete floor (patchy). From what i have read it looks like mastic asphalt. It doesnt want to really scrape up and so looking for options on covering before tiling with most probably a mapei flexible adhesive.

Someone said to me to thinly latex? but not sure if this is the best option for covering mastic asphalt. The floor coverage is about 12sqm. Thanks