MapGrip D1 on plaster. Primer or not?

[lostbread]

Hi All,

I have a small area I would like to tile in my bathroom (~1 square m). I scraped the paint, and it is now only plaster. I bought Mapei MapeGrip D1 for the tile adhesive, and I am wondering whether I should use it directly on the plaster, or first apply a primer (I bought Mapei Plaster Primer) before using the adhesive. Would you have a recommendation? Primer or not with D1 on plaster?

Note I will be fixing small metro tile.

Thanks.

 

[CACKATALLTRADES]

If you've already bought the primer it's very little effort to use it now and a lot of effort to strip it all back later because something's dropped off after you thought it was all done and dusted.

 

[lostbread]

Thanks. There is no indication if I should dilute the primer or not. Any advice on this?

 

[CACKATALLTRADES]

Thanks. There is no indication if I should dilute the primer or not. Any advice on this?

Is it this one? https://www.screwfix.com/p/mapei-primer-g-5kg/5309p
Q&A says the following:
"Mapei Primer G can be used diluted 1:1 with water when going onto gypsum plaster. More than one coat may be required depending on porosity."

 

[lostbread]

No, it is this one: https://www.toolstation.com/mapei-p...Iu1Tfpw4z4rykXPCTWIaAp0GEALw_wcB&gclsrc=aw.ds

 

[CACKATALLTRADES]

No, it is this one: https://www.toolstation.com/mapei-p...Iu1Tfpw4z4rykXPCTWIaAp0GEALw_wcB&gclsrc=aw.ds

I would take "ready to use" to mean dilution unnecessary