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Self levelling over bitumen
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[QUOTE="Alex462, post: 988761, member: 60896"] So I may have done an oopsie. We are putting self-levelling compound down over floor where I removed the vinyl tiles. Some of the tiles had a white powder which had pushed them up. This is a concrete ground floor with no basement. So my plan was to seal over the bitumen and then put self leveller. I have applied a layer of acrylic [URL="https://www.wickes.co.uk/Setcrete-High-Performance-Floor-Levelling-Acrylic-Primer---2-5L%0D%0A/p/154148"]Setcrete High Performance Floor Levelling Acrylic Primer - 2.5L | Wickes.co.uk - https://www.wickes.co.uk/Setcrete-High-Performance-Floor-Levelling-Acrylic-Primer---2-5L%0D%0A/p/154148[/URL] However I since learned that 1) this is no good for bitumen and 2) the bitumen may have been a damp proof membrane when installed (in the 50s). So I should perhaps have used SBR? I also read that PVA plus self leveller is a recipe for disaster, even though that is often recommended! What do I do now? Go ahead with self leveller? Try and remove the acrylic and apply SBR instead? I really, really do not want to grind the surface because of the dust. [/QUOTE]
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Self levelling over bitumen
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