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Old 10-09-2013, 09:32 AM   #1
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Need a coating over white paint that won't amber/ yellow!


I've searched and can't figure out what coating will work best! I recently painted an antique wooden high chair with flat latex paint. I want to put a few coats of *something* over it to make it easy to clean and give it some durability. I finally picked up some polycrylic, but it yellowed the heck out of my test board. I would prefer something easy to work with and with a quick drying time. Thank you

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Old 10-09-2013, 09:50 AM   #2
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Need a coating over white paint that won't amber/ yellow!


Sand it a tad and go over that with an enamel latex in a satin or semi gloss finish. That's designed to be durable and hard wearing. Flat paint isn't the correct choice for furniture pieces that will actually be used---despite the current fascination with chalk paint.

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Old 10-09-2013, 10:56 AM   #3
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Need a coating over white paint that won't amber/ yellow!


Polycrylic is actually the way to go. In fact, I've painted furniture with flat paint with the intention of providing the finish sheen with Polycrylic, and it worked fine. I think we need to get to the bottom of why it produced a yellowing effect for you. If you are covering oak or pine or something with it, the yellowing you are perceiving might simply be increasing the contrast and bringing out the grain of the wood. Wood is already a yellow-ish color, and putting a clear coating with intensify that effect. Was your test board already painted with your paint?

Having said that, polycrylic isn't all that easy to work with specifically because it has such a fast drying time.

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Old 10-09-2013, 04:46 PM   #4
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Need a coating over white paint that won't amber/ yellow!


Sigh. I was really hoping to NOT repaint the chair. The paint on the test board is the exact same paint and it is ambering instantly. It doesn't appear to be tannins or anything seeping through. The polycrylic does say it can do this to latex paint. I guess I can do the tray in an enamel. The trouble would be matching the color as I mixed the flat myself. I don't want a lot of sheen though. I may just wax it, use it and when it is ready for repaint do it with enamel. I can't use a clear acrylic or anything? I don't mind yellowing with time but this changes the color from a bone white to a dark brown. No bueno!
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Old 10-09-2013, 05:01 PM   #5
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Need a coating over white paint that won't amber/ yellow!


Polycrylic is clear acrylic.

If you are going from bone white to dark brown, then something is seriously wrong. It is absolutely clear, and the whole point of water based polys is that they don't amber, like a polyurethane will, over time. But even then, the effect is rather slight. Nothing like what you're seeing. Something else is wrong.
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