geekhack
geekhack Community => Keyboards => Topic started by: phinix on Fri, 10 April 2026, 07:46:00
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That soft-rubber coating on CM Quickfire Rapid keyboard case is terrible. I hate the feeling of it when touched, also it wears off with time.
Could this be sandblasted? Or would I need to do it manually with sand paper?
I did that ages ago, but it was horrible process, getting that freakin sh*t off in small corners of the case did not work out perfectly and I binned the whole case...
I could just order that aluminum case for CM/Filco keyboards, but I like the overall plastic case of this board.
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Sandblasting plastic is possible...
But you have to use low pressure (50 PSI or perhaps less) and also a gentle media (like baking soda).
A wide nozzle helps as well. You want to keep the friction/energy you induce, spread and low, to avoid melting spots.
That said, I don't know about the rubber coating, and how it will react to the sandblasting.
There are coatings that are very sticky and won't get off well trough abrasion.
Perhaps a bit of a gamble....
Btw, there was a old related thread:
https://geekhack.org/index.php?topic=39533.0
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I've used white spirit and a lot of rubbing (sometimes with sandpaper) to get rubberised coatings off where it has started to decompose.
Then wipe it with alcohol to get the first solvent off.