Mastic Horror!

[norsegunn]

Morning,

I've just started re-decorating my bathroom and i've run into a problem. Under the hideous carpet (Now removed and ritually burnt) were some equally hideous 'institution green' vinyl tiles. Under those is the source of the problem:

A layer of ancient mastic over the concrete.

Now i've spoken to the chap at B&Q and he's said theres no way to lay ceramic tiles directly over this.

Ideally i need to remove the mastic, although an hours work with a heat gun has seen me clear about 2 square inches.

Can any of you guys reccomend a way forward on this? Either for mastic removal or something I can lay straight over the top?

Cheers,

ANDY

 

[nellyb]

Dependent on how solid the vinyl adhesive is, you may be able to tile straight onto it, after all it does seem to be stuck fast using a single part flexible adhesive. The other alternative would be to put a latex levelling compound over the top of it and then tile onto that

 

[Moz]

get an angle grinder to it scouring , or you can use bal floor Levelling Compound,which is quick setting ...

I would try scouring it off ...