what paint to use?


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Old 03-11-10, 11:32 AM
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what paint to use?

is it better to use oil or water based paint on external windows?
As they are subject to water ingress on the outside and condensation/also a bit of ingress on the inside should I be considering a water based finish on the inside?

It has finally struck me after 20 years of maintaining these windows that oil finishes on both sides may be trapping in moisture......
 
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Old 03-11-10, 01:18 PM
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The finish paint is supposed to keep the moisture on the outside of the finish, not to be absorbed by the wood. Either oil or latex should do a good job provided the substrate is prepped well and primed if/where needed. Climates that have intense sun [like fla] it is better to use latex. Oil base doesn't hold up well in that climate.

Generally it's ok to use latex over top of weathered oil base but on interior enamel to switch to latex means, sanding and coating with a solvent based primer first.

If these are working double hung windows it shouldn't matter too much if you use oil or latex [dependent on environment] A correctly painted window will have all parts of the sash painted except the sides that run up and down.

What kind of paint is currently on the windows? what shape is it in? in what area of the country are you?
 
 

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