Do I have to do a coat of primer on an old painted steel surface? If not, is there any harm in doing a primer coat?
Md Ariful Islam
বিএসসি(সিএসই)
,
এমবিএ(মার্কেটিং)
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Dr. Md Rushad Rahman
এমবিবিএস(আরপিএমসি)
,
পিজিটি(মেডিসিন)
First, you should clean the surface thoroughly. Then you need to sand it. Finally, yes, you should add a coat of primer.
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