Polyeurathane over paint?


Old 05-08-02, 05:42 PM
Becca Bates
Visiting Guest
Posts: n/a
Polyeurathane over paint?

I know this sounds weird...
I want to paint my bathroom walls a light (cornflower) blue and I want it to look kind of waxy ( not flat but not shiny). I know I can't get it to look that way with paint alone. My thought is that I could get it to look the way I want by painting over the blue paint with a few coats of satin finish polyeurathane.
Would I have any problems with this? Is it a problem in a bathroom. I don't shower in that room very often. Are there any special things I should do if I decide to try it?
Thanks, Becca
Sponsored Links
Old 05-08-02, 06:04 PM
Visiting Guest
Posts: n/a
In my experience, true polyurethanes (alkyd-based synthetic varnishes), can cause a reaction called 'blooming' whereby the basecoat tone is altered, sometimes significantly, by the synthetic. For example, I have sprayed several coats of urethane over blue and observed blotchy 'greenish blooms' as the urethane reacts with the paint. To achieve your effect, I would strongly recommend an acrylic urethane (such as Moore's 'Stays Clear') or simply recoat with a sheen of your choice (such as a pearl from Moores). You can also lightly buff the surface with 400 grit paper to give the surface a very subtle burnished effect and take the edge off the sheen, whatever you decide. Best of luck.

Old 05-08-02, 08:29 PM
Visiting Guest
Posts: n/a
I havent personally put a clear over a painted finish,except for when I restored a rifle stock some years ago,but I figure it is still the basics and I would stick to acrylic clear gloss if the wall paint underneath is acrylic.
If the wall paint underneath is an oil base,I would go for a satin polyeurathane.Oil paint is shinier than acrylic and also for a bathroom I would go for the oil rather than the acrylic as the acrylic clear tend to be pourous and trap mould.
Hope that helps

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Thread Tools
Search this Thread
Display Modes
Ask a Question
Question Title: