Originally Posted by HaiiYaa;15445363
I think jchon is worried that the keycaps will get stained which ofcourse they wont as they are of a solid material. The only thing that will happen over time is that the keys will lose some texture and get a bit shiny
I can only say from the keyboards I've used, but in all cases over time the white / beige keys have shown a yellowing, the black keys as you rightly pointed out do lose some texture and go slightly shiny.
I actually quite like the shiny effect...
I also found the following info on this website
that the OP might find useful:
Key Materials and Key Wear
PS, PC and PVC (Polystyrene, Polycarbonate, Polyvinyl Chloride). Common and cheap. This is a lighter less durable plastic that tends to be vulnerable to solvents. Most keyboards shipping today including Logitech, Microsoft, etc. use some variant of this for their casings and keys.
ABS (Acrylonitrile Butadiene Styrene). It's commonly used for older keyboard casings. It's a comparatively soft material compared to some modern plastics but is resistant to breakage. Topre casings are made of ABS and probably most IBM Model M's are as well. Although I am not sure I suspect Filco/Rosewill/Das keys are made of ABS.
PBT (Polybutylene Terephtalate). PBT is a common choice for modern Cherry keycaps and is what IBM/Lexmark/Unicomp and Topre uses. It should not yellow as much as ABS over time.
POM (Polyoxymethyleneor better known by the brand name "Delrin"). An abrasion-resistant and low-friction material, this found use in older black Cherry G80 keycaps. However it is expensive and not common in other keyboards.