HP Forum Archive 11

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Disintegration of vinyl case Message #1 Posted by Graham Whyte on 6 Apr 2003, 3:32 p.m. I have not used my 33-E for about six months and when I opened the vinyl case today I found the inside of the case is in the process of disintegrating. This has shed a black dusty deposit all over the calculator. Question - is this disintegration common, and any ideas what causes it happen? The calculator is normally stored in a cool dry place. Thanks.

Re: Disintegration of vinyl case Message #2 Posted by Gordon Dyer on 6 Apr 2003, 4:51 p.m., in response to message #1 by Graham Whyte The same thing is happening to my 41CV case. Disintagrating inside and producing black dust, so I have stopped using that one. It was like that when I bought it 6 months ago. I guess it is caused by damp, or maybe inappropriate washing, but I'm not sure.

Re: Disintegration of vinyl case Message #3 Posted by David Smith on 6 Apr 2003, 5:18 p.m., in response to message #1 by Graham Whyte This is very common. The backing to the lining turns to dust. Just take the case and toss it in the washing machine. Then prop open the case and let it air dry. In tough cases you may have to wash a second time.

Re: Disintegration of vinyl case Message #4 Posted by Raymond Del Tondo on 7 Apr 2003, 3:24 a.m., in response to message #3 by David Smith One of my HP-41 soft cases shows the same black dust. How many degrees (Celsius) can the case handle, if put in the washing machine? Or is 30 degrees Celsius sufficient?

Re: Disintegration of vinyl case Message #5 Posted by Norm on 7 Apr 2003, 4:45 p.m., in response to message #4 by Raymond Del Tondo Did anybody ever compare the size of a 41C to a 48G+ ? Long shot, but maybe a 41C would fit into the case that is sold for a 48G+ or a 49. Then a person could probably buy a brand-new case from spare parts. But I dont know if it would fit.

Re: Disintegration of vinyl case Message #6 Posted by Richard Garner on 7 Apr 2003, 5:27 p.m., in response to message #5 by Norm The 41c+card reader is the same size as the 48g, so the cases can be used for either.

I would think it would be very loose w/o the reader though... (NM) Message #7 Posted by Jeremy on 7 Apr 2003, 7:53 p.m., in response to message #5 by Norm !@#$

Re: I would think it would be very loose w/o the reader though... (NM) Message #8 Posted by Michael F. Coyle on 8 Apr 2003, 2:05 p.m., in response to message #7 by Jeremy Just add a big spring!

Re: Disintegration of vinyl case Message #9 Posted by David Smith on 7 Apr 2003, 10:29 p.m., in response to message #4 by Raymond Del Tondo I'm pretty sure 30C would be fine. I set my washing machine to HOT, but tend to keep the house water heater set fairly low compared to most people... I don't like the idea of people being able to scald themselves... but still need to dial in cold water to take a comfy shower.

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