i think all rapid repair compounds are fine. Shouldnt be called a repair compound if they cant repair floors ready for applying compounds etc.
I've been reading f balls 400 pdf and ardex a45 sheets. 400 says over dpm and can't remember a45. I'll give them a call over next few days to see what they say.
Thats a bit stupid. Why would you use it over a DPM? a subfloor would need repairing before applying a dpm. Must be another product they have changed. Also as it was designed to repair concrete stairs and most concrete stairs was used where high moister as wooden stairs would go rotten.
Hello Matt, Can you give a more accurate instruction on this. We are also repairing our subflooring and we need to learn this things as we decided to do it by our own. Thanks
