Letter 14069

Blow mold texturizing, help! [Mexico] 

What acids or method should I use to texturize an aluminium blow mold?

Juan R [last name deleted for privacy due to age of posting]
Plastek - Celaya, Guanajuato, Mexico

Ferric Chloride FeCl3 used also for printed circuit boards. You can get it at chemical supplies (ask for 40º Baumé solution) or at electronic parts stores ask for PCB etching solution.

Aleksander Matug
- Montreal, Quebec, Canada

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