Editing Keycap material (section)

==POM==
POM (short for "Polyoxymethylene") is a thermoplastic. It is sometimes called "Acetal" or "Polyacetal". POM is hard and durable but has low friction, being slippery to the touch. 
It is more dense than PBT and ABS, and keycaps made of POM tend to have a more muted downstroke.

Legends on POM keys are usually laser-engraved, with or without infill.

Keycaps of POM can not be found on many keyboards. [[Cherry Corp.|Cherry]] uses it currently for black keys on its contemporary keyboards in the [[:Category:Cherry keyboards|G80 and G81 series]].

[[Slider]]s in mechanical key switches are often made of POM. The natural unpigmented appearance of POM is translucent white, which can be seen in the slider of [[Cherry MX Clear]].
There are technically two variations of POM: homopolymer and copolymer. The homopolymer is somewhat stiffer and stronger but the copolymer is more dimensionally stable and has less friction.
The chemical giant DuPont has the popular brand "Delrin" (not to be confused with the keycap manufacturer "[[Devlin]]") for the homopolymer form. It is suitable for machining and laser-cutting and has been been used for [[plate]]s in some custom keyboards.