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Dr. Md Rushad Rahman
এমবিবিএস(আরপিএমসি)
,
পিজিটি(মেডিসিন)
Start by preparing the surface by scuffing it with 80-120 grit sandpaper or wire brushes, which will help the paint adhere better. Use a special oxidizing primer on the roof, which will help inhibit the growth of rust in the future. Then, after the primer dries, go over it with your top coat.
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