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Self Levelling Concrete Over a Sealed Concrete Slab?

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Hi All,

I've done many searches but can't find a straight answer...

We'd like to level out a concrete slab (so we can lay vinyl planks and have it nice and flat) that has already been sealed.

Is there a primer solution that will let us use self levelling concrete over a sealed slab, something like the Lanko Ultraprime maybe?

We really don't want to grind or use acid on slab!

Thanks
Anyone?
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