Hello Louise! I am not sure what your project was using chalk paint and clear coat. Whether it is a big furniture item or small. I am assuming you used white chalk paint. You can try to sand off the clear coat and use a water based poly on your project. Water based poly will not yellow over time. If you want to repaint with chalk paint you can go over your clear coat. You might want to lightly sand and clean off the dust before you repaint.
I used a water based poly and it still yellowed so that didn’t work so maybe a wax. I guess I’ll sand, repaint and use a wax and see if that prevents it from yellowing.
I agree with the others that you can repaint after sanding the sealer. Clear coat is kind of a generic name so I'm wondering if you used a polyurethane? If so, that might be why it turned yellow. Polyurethane is known to turn yellow over time. I'd suggest using a latex paint or if you really want to use chalk paint, seal it either with a wax or a polyacrylic. Wishing you the best.
Hi Louise, hope this helps you. Polyurethane materials are sensitive to UV radiation, temperature and humidity, and photothermal oxidation, hydrolysis and degradation caused by heat and light accelerate the yellowing of polyurethane. You can avoid this by using a white primer under the chalk paint. With all the different brands and various opinions on wax and poly, it can be confusing on which topcoat to use on painted furniture. To keep things simple, I use wax on chalk-painted and milk-painted pieces (unless they are high-traffic items!) and poly products on everything else
This is an industry-wide issue that occasionally arises with top coatings. Sometimes a top coat will activate the tannins in the wood, causing the yellowing you notice. Sealing the wood with a primer based on shellac before painting is the only method to stop this from happening.
That happened to me with a bathroom vanity. I choose to get a cheaper clear coat. Mistake. I had to sand it all off and repaint. I used Benjamin Moore paint which did not need a top coat. It has lasted beautifully for several years.
I was wondering if you could help me with something -- I have an entirely oak kitchen. I know it's the rage now to paint or gel stain cabinets. I've been considering ...
See more
Opinions Please! I got this very plain damaged dresser and was at a loss to what to do with it. I was inspired to glam it up. The top is stained and the finish is a b...
See more
I don't want to sound like a total "hater", but am I the only one who doesn't like distressed furniture? I see so many beautiful pieces of furniture that would look o...
See more
I'm guessing the cheapest thing is repaint
Hello Louise! I am not sure what your project was using chalk paint and clear coat. Whether it is a big furniture item or small. I am assuming you used white chalk paint. You can try to sand off the clear coat and use a water based poly on your project. Water based poly will not yellow over time. If you want to repaint with chalk paint you can go over your clear coat. You might want to lightly sand and clean off the dust before you repaint.
HI Louise,
I agree with the others that you can repaint after sanding the sealer. Clear coat is kind of a generic name so I'm wondering if you used a polyurethane? If so, that might be why it turned yellow. Polyurethane is known to turn yellow over time. I'd suggest using a latex paint or if you really want to use chalk paint, seal it either with a wax or a polyacrylic. Wishing you the best.
Hello there,
Yes, use a Clear Wax to finish or you can get a Varnish that does not turn yellow from a craft shop. Sand 0ff varnish or just start again!
Hi Louise, hope this helps you. Polyurethane materials are sensitive to UV radiation, temperature and humidity, and photothermal oxidation, hydrolysis and degradation caused by heat and light accelerate the yellowing of polyurethane. You can avoid this by using a white primer under the chalk paint. With all the different brands and various opinions on wax and poly, it can be confusing on which topcoat to use on painted furniture. To keep things simple, I use wax on chalk-painted and milk-painted pieces (unless they are high-traffic items!) and poly products on everything else
This is an industry-wide issue that occasionally arises with top coatings. Sometimes a top coat will activate the tannins in the wood, causing the yellowing you notice. Sealing the wood with a primer based on shellac before painting is the only method to stop this from happening.
That happened to me with a bathroom vanity. I choose to get a cheaper clear coat. Mistake. I had to sand it all off and repaint. I used Benjamin Moore paint which did not need a top coat. It has lasted beautifully for several years.