Liquid Dpm over concrete/bitumen

[CharlieB1981]

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

 

[KenGMac]

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.

 

[CharlieB1981]

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

 

[dazlight]

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