Zinc-rich paint is applied to a clean, dry steel surface by either a brush or spray.  Zinc-rich paints must contain either between 65% to 69% metallic zinc by weight or greater than 92% metallic zinc by weight in the dry film. Paints containing zinc dust are classified as organic or inorganic, depending on the binder they contain. Inorganic binders are particularly suitable for paints applied in touch-up applications of undamaged hot-dip galvanized areas.

The coating thickness for the paint must be 50% higher than the surrounding coating thickness, but not greater than 4.0 mils, and measurements should be taken with either a magnetic, electromagnetic or eddy current gauge.

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I work for a nonprofit, and we just had a new fence donated and put in.  The chain link is coated (black) but the posts, rails, and connectors are not, and they look very bright and silver in contrast to the black!  What is the best way to paint (or coat?) the silver parts of the fence at this point? We are on a budget, so certainly need to consider costs and longevity.  We do get volunteer groups quite often, so labor might not be an issue, provided it’s nothing high skill.  Thank you for any help you can provide!

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