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  for Metal Finishing since 1989
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Chemical coloring

2003

Hello,

I am restoring an engine and I want to re color the holly carb. I am told that it is dichromate finish could you give me some insight into this.

Thank you,

Preston Overstreet
- LaCenter, Kentucky

This is not an easy job as the housing is cast, thus moderately porous as metals go and will have a fair amount of petroleum byproduct soaked into the metal making it a very spotty or blotchy final finish. Also, You can not afford the disposal cost of the spent dichromate or its rinse water. Best bet is to ship it to a firm that refinishes these on a regular basis. The shop down the street may not be aware of the problems and can ruin the carb trying to get it to look good.

James Watts
- Navarre, Florida
2003