Vinyl Question - worst case scenario...

[handyman11]

I have been going back and forth regarding the issue of what paint to use on damp proofed walls. Basically i had a room skimmed, but there was one section which was rendered also - injected, rendered and skimmed. I will be painting it after about two weeks of the plastering being done and so i need to use a breathable paint. I think I will use a contract white paint, though some tell me that ordinary white dulux brilliant white matt emulsion does not have vinyl in it either, which would make sense as it does not have any sheen. Anyway, if i get this wrong and the wall cannot breathe what is the worst case scenario - what will happen?

I simply cannot wait as I have people booked in to put flooring down, build shelves, put radiator on etc.

Thanks

 

[gus321123]

dulux matt has some vinyl in it ,,, u do get super matt dulux ,,, but as long as the wall are dry before painting u shouldnt av a prob just always build the coats up never try to cover in one or two coats

 

[handyman11]

dulux matt has some vinyl in it ,,, u do get super matt dulux ,,, but as long as the wall are dry before painting u shouldnt av a prob just always build the coats up never try to cover in one or two coats

Thanks Gus, I was just going to risk using the normal Dulux Brilliant White Matt emulsion as opposed to contract or super matt, and of course I will wait till the plaster has turned light, but given that a section of it was rendered and then skimmed, is there a chance that the skimmed plaster could dry and turn light but the render is still wet underneath? Once again, what will happen if it does struggle to breathe - will the paint come off?

 

[gus321123]

if the plater looks dry then should be ok ,,, if the render is wet under it it wouldnt av let the plaster dry out ,,,, mind the render can dry into the wall as well as out the way ,,and as emulsion is water based should be ok ,,, the dulux paint out ov b and q is about 24 pounds for 10 lts the tarde super matt is about 30pounds ,,, once uv used the trade ul never go back to the normal dulux ,,anyways goodluck

 

[emilybronte]

Leyland Super Leytex.

 

[gus321123]

nothing worse than going to a job and they have and q own brands emily lol

 

[gus321123]

ooops b and q *

 

[emilybronte]

nothing worse than going to a job and they have and q own brands emily lol

Depends what product it is. The masking tape is rubbish, for example. Some B & Q own brand things are useable, some are even good value and if you live nearer a shed than a specialist build or plumbing centre it can tip the balance. Plus, the toasted teacakes in the cafes at B & Q are amazing.

I wouldn't touch B & Q paints, personally. The B & Q Value stuff is desperately bad and the Colours range, although it's improved recently in terms of opacity/thickness, is still very garish. Compare the Colours 'Duck Egg' to the Laura Ashley equivalent colour and you will see what I mean.

I do however like the fact that B & Q (unlike Wickes and Homebase) employ helpful people who have some interest in or knowledge about DIY. This has to better for DIYers, although the people on the paint counter aren't always sufficiently clued up for decorators' demands and the returns policy is crazy. I won't buy paint there now for that reason.

Feel free to pass on these free bits of feedback to your masters!

 

[opps]

Unfortunately paint names are very misleading. For example there is no latex in the Leyland Latex paints

Apparently the typical matt emulsion contains about 20% acrylic and 80% vinyl binders.

Better quality paints will have a higher acrylic content. This makes them easier to keep clean and provide better moisture resistance.

In your case you want an "inferior" paint with more vinyl acetate and less acrylic. As a vague rule of thumb, the cheaper the paint, the less the acrylic content

Personally I would use a standard matt emulsion rather than Dulux Supamatt or the Leyland Super Latex. The latter are impossible to clean and can be problematic when overcoating later.

 

[emilybronte]

Unfortunately paint names are very misleading. For example there is no latex in the Leyland Latex paints

It's actually called Super Leytex (not Latex) but you are correct.

Apparently the typical matt emulsion contains about 20% acrylic and 80% vinyl binders.

...and no water?

 

[opps]

Unfortunately paint names are very misleading. For example there is no latex in the Leyland Latex paints

It's actually called Super Leytex (not Latex) but you are correct.

Apparently the typical matt emulsion contains about 20% acrylic and 80% vinyl binders.

...and no water?

Sorry my bad emily, you are correct, it is Leyland Leytex.

Re the paint, I was only referring to the binders, yes it does also include water, along with dozens of other ingredients such as; pigments, propylene glycol, soap, deforming agents, UV dispersants, biocides and so on...