I have a question in regards to removing anodozing form an aluminum bolt knob I have on hand. I am going to get it ceracoated and heard that the paint will not adhear to the anodizing. Wondering what is the easyest way to remove. I have heard you cannot blast it off as it will bite in the aluminum and weaken it. Any suggestions.
Removing Anodizing from Aluminum
- Thread starter tabs4u
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Etch it off with acid. I don't remember what type. I think it's sulphuric but that might be 100% incorrect. Talk to a anodizing shop, they may do it cheap/free.
Sandblasting in this situation won't really damage it but it likely won't remove the anodizing.
Sandblasting in this situation won't really damage it but it likely won't remove the anodizing.
Anodizing should not be blasted off if you can help it. The proper way to do it is to turn the air down and blast enough 'tooth' into it for the cerakote to stick. Cerakote will stick to properly prepped anodizing as well as it will stick to anything.
Blasting through the anodizing and cerakoting bare aluminum looks good but you lose the surface hardness and protection the anodizing gives.
Blasting through the anodizing and cerakoting bare aluminum looks good but you lose the surface hardness and protection the anodizing gives.
might want to look up how they anodize things in the first place.
yes aluminum and sulphuric acid does off gas hydrogen, but if you are doing it any place other then your kitchen and your not running voltage through it to speed up the etching, then your "good" (no smoking)
use a strong caustic to remove anodizing, at the plating shop we negativity charged the part and positively and it "blew" the anodizing right off the part. it will leave it with a dull shine, if your shining it up run it under a buffing wheel with some green 21 deluxe and you would never know it was finished any other way.
