How Many Coats Of Primer On Exterior Wood Trim?


You’ll only need one coat of primer, but plan on applying two (possibly three) coats of paint when painting baseboards and trim, and be sure to let each coat dry thoroughly before moving onto the next.


Two coats of an oil-based primer are recommended on unfinished wood: The higher solid content in primer can fill the pores, level the surface for painting, and mask any knots in the wood.

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Frequently Asked Questions

How many coats of primer are needed on exterior wood?

two coatsUsing two coats of primer solves this problem because the surface will absorb most of the first coat, while the second coat finishes the work by filling in any remaining thin spots. Wood – For bare wood that's never been painted, apply two coats of an oil- or water-based primer.

Do you have to paint trim with primer?

If your trim already has a coat of paint on it, a separate coat of primer is only needed in certain circumstances: If you’re dramatically changing the color. If you’re trying to put a latex paint over an oil-based paint. If the existing paint is in bad shape.

How long does it take to dry oil based primer on wood?

For painted wood, use an oil-based primer. Apply the first coat, then allow 12 to 24 hours of drying time for an oil-based primer or 1 to 2 hours for a water-based primer. When the first coat is dry, apply the second if necessary.

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