Acrylonitrile butadiene styrene
Provided by the ASK Keyboard Dictionary
ABS is a plastic commonly used as a keycap and keyboard case material, amongst other things. Along with PBT, ABS is one of two main keycap materials and is known for being the cheaper material out of the two. ABS is less rigid and its texture can wear down and start shining quicker than PBT, but is also cheaper and easier to mould. ABS is also known to yellow when exposed to UV for a sustained period of time.
