DIY Doctor UK DIY Forums

I am wanting to lay porcelain tiles onto a concrete floor but the floor used to be covered with old "Marley" tiles. These have been removed and the floor is sound but is still black from the old adhesive and the Unibond adhesive I have for the tiles says that it cannot be used on "old adhesive". Can anyone advise me on how to treat the floor before laying :? or how to remove the old adhesive?

STRIMMER,
You will never successfully remove the old adhesive, float over the floor using a self-levelling compound which incorporates latex.
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