Yellow marks on white paint.

Questions & AnswersCategory: Exterior Painting QuestionsYellow marks on white paint.
Maxine Munroe asked 8 years ago

I had my front porch completely replaced but now yellowish marks are showing up on the white painted posts.

1 Answers
Crowder Painting answered.

This is tannin bleed, tannins from the wood coming through the paint. These spots will need a stain blocking primer to seal them up then be touched up with the original paint. Use an oil based stain blocking primer, better at sealing up this type of stain.

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