You can achieve a less-shiny galvanized finish via the following methods: For most products, do nothing and the coating will be dull in just six months. For small jobs, the flux or acid tank may be used. For larger jobs, investment in a post-treatment tank for one of the proprietary systems using zinc phosphate. Remember the customer is always ...

With any method used to dull galvanized surfaces, it is important to note that, if the parts have been passivation-quenched, the outer surface of the galvanized coating is affected, making dulling treatments ineffective. Consult your galvanizer to see what options may be available.

There are some practices that can be performed during the galvanizing process that may be able to dull the surface of the parts without further treatment. A very slow cooling rate, no quenching: will allow the intermetallic to grow even after removal from the bath. The use of little or no brightener bar in the bath will give a duller coating.

Knocking the shine off of new galvanized tin panels - - remove shine, age the sheet metal roof