Editing Double-shot moulding (section)

===Materials===
The majority of double-shot keycaps are made entirely from [[ABS]] plastic. Despite their greater wear resistance, [[Signature Plastics]] have confirmed that the majority of [[Comptec]] keycaps were nonetheless made from ABS, albeit of different formulations (the plastic formulations have since changed due to regulatory requirements).<ref>Correspondence with Signature Plastics, 2015-10-02</ref> Older [[Cherry catalogues]] show that in 1982, the tall [[Cherry M7]] and [[Cherry M9]] keycaps were made of double-shot Tenite, while their other double-shot keycaps were all ABS.

ABS is typically chosen because most other plastics shrink too much in the moulding process.{{citation needed}} Modern ABS however lacks the desired wear resistance, leading to keycaps that develop shine too readily. However, PBT double-shot keycaps are now produced by both [[Vortex]] and [[Tai-Hao]].