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Siding and Trim/Bare Wood/To Be Painted
- Surface Preparation:
- new wood should be painted promptly (within a few weeks) because weathering of the wood will reduce adhesion of primer and paint
- however, moisture in treated wood left from the treatment process should be allowed to dry prior to painting; once constructed, two weeks’ exposure to the weather should be adequate for most siding materials; thicker timber may take longer
- dull any shiny (mill glazed) areas with fine grit (#220) sandpaper
- treat any mildew with a 3:1 water:household bleach mixture, leaving it on for 20 minutes and adding more as it dries; wear eye and skin protection; rinse thoroughly;
- refresh the surface of any weathered wood by sanding with medium grit (#120) garnet paper, sanding in the direction of the grain
- Priming:
- apply a quality exterior latex or oil-based stain blocking primer
- apply 2nd coat if primer exhibits stain bleed through
- do not leave a primer unpainted
- Painting:
- use top-of-the-line exterior 100% acrylic latex house paint in flat, satin, semigloss or gloss finish, depending on appearance desired
- two coats will enhance hiding, mildew resistance, sheen uniformity and durability
- a quality oil-based or alkyd paint may be used (use oil-based primer), but quality acrylic latex will provide better color retention, mildew resistance and long term crack resistance
Back to Exterior Prep, Prime and Paint
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