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geekhack Projects => Making Stuff Together! => Topic started by: LogicLoop on Wed, 27 September 2017, 09:34:35

Title: Cleaning off pad printing?
Post by: LogicLoop on Wed, 27 September 2017, 09:34:35

Has anyone deliberately removed pad printing from PBT? I don't want to be too abrasive and scratch the PBT, so would 99% isopropyl alcohol be okay?

Title: Re: Cleaning off pad printing?
Post by: Findecanor on Wed, 27 September 2017, 16:14:11

PBT will not be harmed by alcohol. It will even take acetone.

Title: Re: Cleaning off pad printing?
Post by: Millsoncapo on Thu, 28 September 2017, 03:44:56

It depends on your cap is what material, what the process.maybe Amyl acetate?i never do this before.so maybe is not the right way.

Title: Re: Cleaning off pad printing?
Post by: Puddsy on Thu, 28 September 2017, 08:46:02

pbt is usually dyesub, so you'll have to use abrasive, but that ruins the feel

you can remove pad printing from ABS with some 70% iso and a paper towel

Title: Re: Cleaning off pad printing?
Post by: LogicLoop on Thu, 28 September 2017, 18:03:39

Quote from: Puddsy on Thu, 28 September 2017, 08:46:02

pbt is usually dyesub, so you'll have to use abrasive, but that ruins the feel

you can remove pad printing from ABS with some 70% iso and a paper towel

The keycaps in question are side-printed, which usually means pad printing. On closer inspection of the photographs, they definitely printed on - as the quality is so bad some of the letters are flaking off! This shouldn't be too hard to remove. Thanks for the replies.