painting new plaster - ceiling

want2bmortgage3

had the artex skimmed over on friday, i scraped and pva'd the artex. its already 98% lightened in colour and i think in another hour it will have dried completely.

i thought i had some cheap matt emulsion left to water down and paint but found it had bits in it and the bottom had hardened.

can i use the homebase 'magic white' paint (pink turns white) watered down for a first coat?

jockster211

want2bmortgage3 wrote: »

had the artex skimmed over on friday, i scraped and pva'd the artex. its already 98% lightened in colour and i think in another hour it will have dried completely.

i thought i had some cheap matt emulsion left to water down and paint but found it had bits in it and the bottom had hardened.

can i use the homebase 'magic white' paint (pink turns white) watered down for a first coat?

Why did you PVA over the skim? Did the plasterer advise for this to be done?

Usually all you need to do is get some cheap (non-bitty) emulsion, water down by around 10-20% and paint it on. This is known as a mist coat. Then let it dry & overpaint in your desired colour, which may take 2 coats.

Jockster

want2bmortgage3

I didnt pva the plaster, I pva'd the artex before he did the skim. 50/50 pva with water. I know not to pva new plaster I've checked the smartcoat paint tub and it says for porous surfaces paint with a part water to 4 parts paint so will give that a go. I just wasnt sure if being the 'magic' paint there would be a problem. Like I had a problem with using kitchen bathroom paint for a first coat before (peeled).

PasturesNew

I'd leave it a few more weeks before painting. Let it dry throughout thoroughly. If I didn't I'd worry that it might fall down, but I do worry about made up things like that

moggylover

PasturesNew wrote: »

I'd leave it a few more weeks before painting. Let it dry throughout thoroughly. If I didn't I'd worry that it might fall down, but I do worry about made up things like that

I don't think that is made up PN - I think that is common sense:D

misgrace

I do P&D for a living, and TBH have never used the magic paint, but as long as you use a matt paint as your mistcoat, preferably non vinyl, but over a skim coat you can get away with a vinly matt, but again, I always use a contract matt as my mistcoat, whether its a skim or not.

You can always do 2 of the contract, and finish with 2 top coats of a vinyl matt if you wish

Its always hand anyway to have come contract matt around, as its always good for a base coat.

want2bmortgage3

i'm a bit confused about vinyl, matt and silk? i thought there were 2 types of emulsion, matt and silk, so where does vinyl come into it?

in fact i have a big tub of wickes silk emulsion which the first plasterer i used told me to paint on the wall render before he plastered. wondering if i have any use for the rest of it?? dont really want silky walls.

misgrace

i'm a bit confused about vinyl, matt and silk? i thought there were 2 types of emulsion, matt and silk, so where does vinyl come into it?


Your sort of right but there are 2 types of matt, you have your Vinyl matt, which is what you would usually buy from your B&Q etc, this is for walls and ceilings and can be washable, and doesnt mark as easy.

Your contract, or Supermatt, is like a chalky type paint which is generally used for a seal coat/mistcoat/prime/coat over bare plaster, specially when its been bonded first, then the skim coat is put on after.
This 'Contract' matt allows the paint to soak into the new plaster and seals it, as your bonding plaster with the skim plaster on top can take up to six months to dry, as it has to dry from the inside out.

If you apply a 'Vinyl' matt on top of a wall thats been bonded and plastered then it will not allow the plaster to dry underneath, and you can get problems, much the same as apply PVA onto new plastered walls, and the dreaded Silk. :eek:

The reason I use 'Contract' Matt on skim plaster as well, is just to be on the safe side, as if there happened to be any comebacks, I know 100% its nothing to do with the paint.

You can pick up a 10ltr tub of 'Gliddens' contract for approx £15, and has excellent coverage, of course you must water it down.