Mist coat ratio

[PurpleDaisies]

I've got some newly plastered ceilings to paint (oh joy) but I'm struggling to work out how much water to add to the dulux trade supermatt I've bought for doing the mist coat. It's been drying for about three weeks and definitely looks ready to paint.

80 paint to 20 water

That's what traders tell me anyway

Great-someone told me 50:50 yesterday and I almost diluted the paint with my tears...

Dulux Trade Matt tells you the proportions on the tin - worked fine when I used it in our old bathroom.

I spotted the instructions as I was cleaning up wowfudge. Oops...

The first coat is dry and looks good. Two more coats tomorrow is the plan.