time-nuts Digest, Vol 108, Issue 135 On Fri, 26 Jul 2013 18:58:26 -0400, time-nuts-requ...@febo.com wrote: > Message: 5 > Date: Fri, 26 Jul 2013 18:58:14 -0400 > From: paul swed <paulsw...@gmail.com> > To: paul swed <paulsw...@gmail.com>, Time-nuts <time-nuts@febo.com> > Subject: [time-nuts] HP Z3801 melted rubber feet. Heads up > Message-ID: > <cad2jfahn4h8ldzh0sywlf-dc3uot7wfp0dwnmjnet44r1nn...@mail.gmail.com> > Content-Type: text/plain; charset=ISO-8859-1 > > Beginning the process of installing a hp 10544 in what had held the Hp > 10811 temporarily by adding some wires for power to the 10544. Pulled the > main board out and what a mess I discovered. HP installed some rubber feet > to support the main boards and they have melted and turned to gue. Whats > interesting is the stuff ran all over the mainboard. Like it wicked upward. > Can't be good and no idea if the stuff actually has conductivity to some > level in this state. Seems to clean up well with rubbing alcohol. But will > be a job and many cotton swabs will give their life in the process. > Maybe the stuff is alive.
Sounds like the feet were made of a polyurethane rubber. Polyurethane rubber and foam can spontaneously depolymerize, reverting to the goo from whence it came. High temperature and humidity speed things along. Google for "urethane reversion" (omit the quotes). Joe Gwinn _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
