Liquid Dpm over concrete/bitumen

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Looking lay a liquid dpm in the cellar floor followed by a self levelling compound as it uneven.

Old coal cellar, half is decent concrete but the other half has a bitumen type coating already.

Any recommendation on products to use- most I've found say only suitable for concrete, I've only found multi tite 2k suitable for both but it's not cheap

Thanks for any suggestions
 
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CharlieB1981, good evening.

Suggest you have a look at the "Pinned Posts" in floors stairs and lofts?
In there there is a section on exactly this topic?

Ken.
 
Already did, the pinned posts over suggestions and tips on how to lay them, which doesn't answer what I'm after- i.e. Products that you can use over concrete and bitumen
 
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1st you need to remove the old adhesive
Then grind floor smooth or latex screed it smooth with the right compound.
Then a coat of liquid dpm at 350 microns
Then prime & screed again
 

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