« Reply #8 on: Tue, 26 March 2013, 08:33:39 »
I thought that PBT sinks MORE QUICKLY than ABS.
When I clean them I dump them in a bowl of hot soapy water, and I never have a problem with either type floating, except for a few stragglers that I dunk with my fingers.
A sure test is to swirl a drop of acetone on the underside of the key and see if it leaves a mark. It will not affect PBT.
Or, boil them for 5 minutes and see whether they deform.

Logged
“Wise statesmen as they were, they knew the tendency of prosperity to breed tyrants, and so they established these great self-evident truths, that when in the distant future some man, some faction, some interest, should set up the doctrine that none but rich men, or none but white men, were entitled to life, liberty and pursuit of happiness, their posterity might look up again to the Declaration of Independence and take courage to renew the battle which their fathers began — so that truth, and justice, and mercy, and all the humane and Christian virtues might not be extinguished from the land; so that no man would hereafter dare to limit and circumscribe the great principles on which the temple of liberty was being built.”
- Abraham Lincoln, July 4, 1858