Destroying A Boscom For Science - Can the Rivets survive a 6 foot drop?

[msiegel]

Delrin melts at 347F. Excellent resistance to acetone.

http://www.machinist-materials.com/comparison_table_for_plastics.htm
http://k-mac-plastics.net/data%20sheets/delrin_chemical_resistant_chart.htm

[Rajagra]

Water boils at...?

How high do you want it to?

[microsoft windows]

Looks like the IBM key plastic myth hasn't been busted yet!

[keyb_gr]

Bumpety-bump.

About ripster's oddball Cherry key, well, my G80-3000HEMDE also obviously has its Windows and Menu keys made from a different material than the others, since only those are yellowed a bit on top (and only on top)! Looking underneath, they aren't doubleshots either. Ripster, what vintage was that POS board?

Here's a good overview of service temperatures and other properties that I found. PS seems to be similar to ABS. This Wiki and this website are quite interesting as well.

I don't think one would be able to tell apart PS and ABS in homebrew boiling and acetone tests. Should work for PVC though. POM, PC, PP and PBT would all be rather unimpressed. Unsure what a PC/ABS blend might do - sounds like a case (no pun intended) for the poor old Boscom.

Hmm, I wonder whether those old Cherry doubleshots might have been from PP - apparently it does yellow.

[keyb_gr]

Another hint:

[...]as the cases on M's are not suited to Rit Dye (the keys take it well though)[...]

[msiegel]

i miss chloe.
pbt would be better for ibm's dye sub process, wouldn't it

[msiegel]

google translate mangles that page pretty badly.

it does say pbt though

i wonder how the author found out.

[itlnstln]

Another post from that thread from Chloe.
 
She suspects the IBM and Topre keys are PBT. Could be.

Actually, she doesn't (at least not in that post).  She simply states that they are probably not ABS.  They could be POM, PVC, PBT, or something else.  I would speculate that Filco keys are ABS, though.