I am hand painting murals on aderandac chairs. I am Using exterior latex paint. what clear top coat can i use?
I hear you should not polyurathane over exterior paint. But I need something that will keep it from chipping and not yellow the paint. Thanks in advance
A water-based poly that is rated for exterior use (read: UV protection) would be the fastest match for a latex base coat. With water based polys, the coats are thinner, so more coats arte needed..
This will work well, but has an amber cast..
http://www.ugl.com/prpolyur.html
A marine spar urethane can be used over the latex, if it has dried long enough.. 3 weeks of low humidity, warm temperatures.
http://www.minwax.com/products/protective/clear-shield-faq.cfm
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You will need to get some advice from a paint store. Assuming the chairs are going outdoors, the material I would recommend is spar varnish. Most products break down in the UV light. Exterior polyurethanes tend to crack as they are brittle when cured . The expansion & contraction which occurs with wood will cause it to break down quickly. Spar varnise is a more flexible material and resists this problem well., however it does have a slight amber tint to it.
There might be a waterbased material you could use. These materials are usually crystal clear, but I am not personally familiar with any that could be used outdoors.
References :
I think you can put Verathane over that. You can get it at any hardware store or Depot.
I think that’s Adarondack chairs, like the Adarondack Mountains.
References :
A water-based poly that is rated for exterior use (read: UV protection) would be the fastest match for a latex base coat. With water based polys, the coats are thinner, so more coats arte needed..
This will work well, but has an amber cast..
http://www.ugl.com/prpolyur.html
A marine spar urethane can be used over the latex, if it has dried long enough.. 3 weeks of low humidity, warm temperatures.
http://www.minwax.com/products/protective/clear-shield-faq.cfm
References :
General article about clear coatings
http://www.paintquality.com/seller/article/sell02_03.html