this post was submitted on 10 Jul 2023
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Mechanical Keyboards
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there are two primary plastics when dealing with keyboards, ABS and PBT
AEK II keycaps were PBT, but the case and the spacebar were ABS (PBT can shrink when molded which can lead to warping in longer keycaps – “banana spacebars”)
for general cleaning
for dealing with the yellowing, users on Deskthority came up with “retrobriting” (basically a timed bleaching using a hydrogen peroxide paste) – timing is finicky, best to under do things than over do things – you can usually find more up-to-date videos on Youtube