iFixit dumps dust into Apple's latest MacBook Pro keyboard
 

iFixit recently revealed that Apple's latest MacBook Pros include a new protective membrane under their key caps, and now the site has stress-tested the membrane it found to see whether the silicone prophylactic can keep dust out of Apple's delicate-as-its-name-implies butterfly key switch mechanism.

The teardown team first dumped particles of a "powdered paint additive" that is apparently coarser than sand into the keyboard and concluded that the membrane ...

https://techreport.com/news/33923/if...k-pro-keyboard