prime to Get a Long-lasting Paint Job when learning all about exterior paint
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How to Get a Long-Lasting Paint Job: Prime

Primer grips the surface and gives it a uniform porosity. Use primer over unpainted wood siding or a chalky surface. It's not needed over sound paint. For best results, stick with primers labeled "exterior" or "interior/exterior." All oil-based primers and some water-based ones stop "bleeding" of red cedar and redwood. Coat knots with a pigmented shellac, such as BIN.
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