Enamel Yellowing

[dan76n]

Hi all,
We are repainting our new house as we didnt like the colour we chose, we are changing from a grey/blue colour to a light white colour. I have just taken all the doors off and noticed that the old colour (only 4 months old) has already started to yellow in all of our wardrobes. What has caused this to happen so fast and is there anything I can do to slow this process down when we repaint?

[echnidna]

use a better brand of paint

[mic-d]

Enamel paint is getting very crappy these days and all seem to yellow quickly. There are three things that I know of that you could do

1 repaint with acrylic gloss, it will not yellow.
the other two I can't guarantee

2 I've read that allowing the paint to cure in bright light also seems to "fix" the white - I have noticed that the inside of doors on builtin wardrobes are yellower than the outside, so perhaps this bears this out.

3 I've also heard and read that a drop of black pigment in the paint also stops yellowing.

something for mythbusters

CHeers
Michael

[Sturdee]

All enamel white paints (irrespective of brand or price) will yellow if applied inside as it gets insufficient sunlight to stay white. Obviously inside cupboards the yellowing is quicker than well lit rooms but they will all yellow.

Therefore use acrylics as they don't have that problem.


Peter.

[Rubber]

Don't you find the coverage extremely poor with acrylic gloss v enamel?

I find 1 coat of enamel = 3 coats of acrylic

Also the gloss level is much higher in enamel

[Big Shed]

This won't solve your problem, but at least it will explain it:

http://www.guthriebowron.co.nz/helping/faq?PHPSESSID=bbd20c0c48ad0b037eb079bb3ae31bd1

It also gives some other good paint advice

[Big Shed]

And another one:

http://www.apmf.asn.au/html/fact_sheet_pages_1.html

[bunnings_girl]

hey regardless on what brand of paint u use with enamel they all yellow at some time, in saying that i have worked in the paint dept for a few yrs before going on materity leave (aprox 2 yrs ago) and in that time i have learnt alot some tips that may help here.

always do 2 coats no matter what..

acrylic these days is just as hard wearing then enamel. the only down fall in enamel is that it does crack over time and does go yellow eg ur doors. and oh the smell... now acrylic doesnt have such a high gloss as enamel but in saying that i have recently brought dulux paint as its so late im having a metal block for what its called i will check the can tomorrow if anyone wants to know the name and it is acrlic but equal value to enamel so its higher in gloss and washes up in water highly recommened for doors and window sills ect ect .
if u are wanting to repaint ur doors i would recommened u have a chat with ur local paint dept and talk about painting over ur doors with acrylic... theres a rule when painting and thats not to paint enamel over acrylic or vise versa cant quiet remember but check with ur paint dept, as it can cause major promblems later..

if u wanna take the lazy way out on this and not stip ur doors to repaint..i recommend giving them a light sand to get rid of the gloss and use aproduct called 3 in 1 from taubmans, this is great stuff as it will allow u to use acrylic over the top once ur used this.....

hope i have helped u and not confused ...

[Master Splinter]

Add some blue tinters to the white paint (making it a cool white rather than just white). Then it will 'grey' instead of yellowing, which doesn't look so yukky.