[Amps] How to get the blue markings off of aluminum stock

[Dan Simmonds]

I use "Brakleen" brake parts cleaner for stubborn removal jobs. It will 
eat though most anything that alcohol and gasoline won't touch. 
Available at NAPA / Walmart, etc.

Dan Simmonds


Vic K2VCO wrote:
> Well, I just finished the cover for my power supply. Removed the clear 
> plastic from the aluminum sheet, and it is beautiful -- except for the 
> blue printing that indicates the alloy, etc.
>
> How do you get this off? I've tried 91% isopropyl alcohol and various 
> petroleum-based solvents without success. I would hate to use anything 
> abrasive because then I would have to polish the whole thing to make 
> it look nice again. I hope there is something I can buy at the 
> hardware store!
>
> I don't understand why the manufacturer didn't put the printing on the 
> unprotected side.
>