Letter 13099

Hard Coat Penetration 

Is Hard Coat Anodizing permeable? Will natural skin oils penetrate hard coat?

Mike Caffey
- Houston, Texas, USA

Mike,

The answer to your question depends on whether the part was sealed. If properly sealed, hardcoat is very corrosion resistant, if not sealed, yes, skin oils will penetrate, and stain the coating

Marc Green anodizer - Boise, ID, USA

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