simple problem- Trying to paint interior trim- has a few knots. I sealed with two coats of oil based Zip, one coat of latex primer and two coats of semi-gloss latex. Two years later the knots are bleeding through. What should I have I done so I wouldn’t get the bleeding? Thanks
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Not sure what "Zip" is, but I do know that a shellac based finish will seal knots. I usually put on two coats to make sure I have enough coverage (sometimes knots can be gnarly and they really soak a finish up). You can use straight shellac or a primer that is shellac based...it all depends what type of finish you are applying on top of the shellac.
Our den was knotty pine!! The painter spray painted every knot with KILZ (as the other poster said, shellac based). The room looked like a leopard, but not a knot bled through the paint.
I believe sealing with a shellac product - that has the white pigment already added - once over each knot then over entire surface is your best bet rather then going first with oil base -
Remember the shellac products have a short shelf life - use fresh stuff
SA
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