Plastic PVD vacuum coating process-finish painting
Metal coating in the air is easy to oxidized dark, there are also fine defects such as vacuum, so to apply a layer of 10-15 m protective finish paint. The requirements of the opposite paint are: transparent, excellent water resistance, wear resistance, weather resistance, do not operate metal plating film, the metal plating film adhere firmly. Usually can use acrylic varnish, polyester varnish, pu varnish, etc., when the primer is thermoplastic acrylate coatings, in order to prevent the paint solvent by corrosion primer coating defects, can choose weak solvent, fast drying paint, such as acrylic modified alkyd varnish, polyvinyl butyral varnish, ammonia ester oil etc.
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