Mapei Primer G dilution - self levelling

Hello

I'll be laying some floor tiles on top of self levelling compound, I've got some Mapei Primer G but I'm not sure if I should dilute it.

Instructions say:

Before tiling on gypsum it says to apply neat, ( does this apply on top of self levelling?)

Also says do NOT apply in such a quantity that it forms a surface film, dilute with water as appropriate for the absorption of the substrate.

I did apply it neat but it didn't get absorbed into the self levelling as I scraped some up later when it was dry, should it be absorbed as it scraped up really easy and I'm confused?