A clear polyurethane coating can help protect exterior paint on wood and extend its life.
Polyurethane is a synthetic, oil-based varnish that coats painted and bare wood surfaces with a durable and protective layer. It comes in liquid form, which you may apply with a brush or a spray can.
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Most stain is applied with a brush, a roller, or spraying. The manufacturer's instructions will advise the best method to suit your chosen stain.
Your wood must be clean and dry. That means all dirt and residual paint should be removed by washing and scraping. If you want a smoother surface, you can sand the wood, which helps remove dirt and...
