Problems applying Dulux Gloss Paint

pastmybest

I painted external door yesterday a new dark colour to go over a different dark colour. It was in the morning in warm, sunny and very dry conditions. The previous surface was good but I sanded down washed with sugar soap and by last evening the surface was touch dry.

Got up this morning (no overnight rain) and parts of the surface are wrinkly - arghhh!!!

What could have gone wrong. I have been painting for many many years and never seen this before. So I guess I need to wait for it to dry which could take a week then sand down again but will the same problem repeat itself????

keystone

Sounds like its possible you put the paint on far too thick. Two thin coats better than one thick one.

When you say sanded do you mean a light key or do you mean you rubbed it flat? Did you undercoat?

Did you make sure you cleaned all the sugar soap or other contaminant off the surface before you repainted?


Cheers

Payless_2

The last time I used Dulux Gloss I put 1 coat of undercoat on and 2 of white gloss. This was on doors, skirting boards etc. Within 3 months the white was turning a patchy yellow colour.

Consequently, I went right off Dulux and did it again with Wickes own brand. It went on brilliantly and has stayed white too

keystone

Payless wrote: »

The last time I used Dulux Gloss I put 1 coat of undercoat on and 2 of white gloss. This was on doors, skirting boards etc. Within 3 months the white was turning a patchy yellow colour.

Any oil based gloss, whatever brand its sold under and containing linseed oil has a tendency to yellow with age although there are now oil based glosses on the market which are largely non-yellowing including those made by Dulux.

Consequently, I went right off Dulux and did it again with Wickes own brand. It went on brilliantly and has stayed white too

Was the Wickes oil or water based?

Cheers

Payless_2

keystone wrote: »

Any oil based gloss, whatever brand its sold under and containing linseed oil has a tendency to yellow with age although there are now oil based glosses on the market which are largely non-yellowing including those made by Dulux.

Was the Wickes oil or water based?

Cheers

Water based!! Well I never. I always thought that all glosses were oil based.

Is it better to use water based gloss then?

Edit - Sorry, I meant that the Wickes paint that I used was water based (I'd just looked at the tin) but that doesn't come across well in this post.

pastmybest

Thanks for all the help so far.

I lightly sanded down but have a sneaky feeling when my wife washed down with sugar soap she may not have washed off a final time with clean water.

I haven't used undercoat for years as it doesn't say to do so on the tin but wonder if it may be a better way next time. Last year I decorated a flat (I own) all the way through without undercoat including external doors and had no problems just using the oil based gloss paint from the tin and with no undercoat.

Just found this on the Dulux site: -

Problem
Shrivelling and wrinkling

Cause
Shrivelling & wrinkling of new paintwork occurs when the surface of the paint dries too quickly, therefore forming a skin before the paint underneath could dry. It is likely to be worse if a thick coat of paint is applied, especially to horizontal surfaces. It can also occur if a second coat is applied before the first one has dried.

Putting it right
Allow the paint to dry and harden. This may take several days, or weeks, depending on the drying conditions. When dry, rub the surface down using 'wet and dry' abrasive paper, and clean with warm water with a little detergent added. Rinse the surface with clean water and allow to dry before repainting.

pastmybest

An update and help is still needed?

Soon after, my front door problem, I repeated the same process on my back door using exactly the same techniques but with one coat of undercoat and two coats of gloss. My back door now looks really good and as I would of expected.

Earlier I looked at my front door and the wrinkly bits had not still fully dried. So tried sandpapering which became clogged very quickly, then a scraper which seemed to work better, then one coat of undercoat on a test part of the door. Now two hours on and wondering if I should undercoat the rest of the door (and hope for the best), or put a second test coat on the small part of the door, or if I am wasting my time?

My neghbour said chemicallly remove all the paint but that is a big job for me and means taking off the door....???

keystone

You will be lucky if the wrinkly bits do dry. It'll stay wet underneath the skin for aeons. Scrape it off and start again. You'll find that white spirit will remove most of the gungy stuff once you've taken the skin off. Then you can feather back the edges and repaint. I suspect what your neighbour means by chemically stripping is not taking the door off and having it dipped - he means use Nit...ors on it.

Cheers

pastmybest

keystone wrote: »

You will be lucky if the wrinkly bits do dry. It'll stay wet underneath the skin for aeons. Scrape it off and start again. You'll find that white spirit will remove most of the gungy stuff once you've taken the skin off. Then you can feather back the edges and repaint. I suspect what your neighbour means by chemically stripping is not taking the door off and having it dipped - he means use Nit...ors on it.

Cheers

Well I sanded it, scraped it and my goodness was it a pain in the rrr's!!!! Then one undercoat, sanded, then two gloss coats and final touch up coat. And it look OK I guess but so very very fed up with it. Now start on the inside painting jobs.

Thank you for your excellent help:beer: