Reply to: RE>Temperature Sensitive Epoxy Robert,
I do not know any temperature sensitive epoxy. But, around 1977 when I worked for Xerox Corp. as a product safety/quality engineer in Dallas, TX, I did test a power supply for BSI. The BSI engineer brought with him an adhesive tape that indicated a certain range of temperature when taped to a component like a transformer. The tape changed into different colors that indicated a range of temperatures which you could compare using a chart to determine the maximun temperature. The accuracy of the color indication was from 3 to 5 degrees C different compared to a thermocouple. The engineer 's name is John Tatum. I do not know that he is still working or retired. Hope this info helps. Regards, Bao Tran Nortel Richardson, TX [email protected] -------------------------------------- List-Post: [email protected] Date: 8/23/96 6:00 PM To: Bao Tran From: Robert Terry ----- E X T E R N A L L Y O R I G I N A T E D M E S S A G E ----- Is anyone aware of a company that make an electronic grade (non-conductive and non-corrosive) epoxy, that is temperature indicative. I have seen cases where UL, for example, will apply this substance to the various components on a power supply during a temperature test. It is my understanding, that if the components reach a specific temperature, the substance will change color, or burn-off. Apparently, it will somehow indicate that the component has reached some temperature anyway. I am interested in this type of product. If anyone has any information on manufacturers of this, or products for similar type applications, I would appreciate hearing it! Please contact me if you have any questions or comments! Thank you! Robert L. Terry [email protected] 313-994-0591 Ext.235 Fax: 313-994-8408 ------------------ RFC822 Header Follows ------------------ Received: by nrchq1.rich1.nt.com with SMTP;23 Aug 1996 17:58:33 U Received: from ruebert.ieee.org by corpgate.rich.nt.com with SMTP (PP); Fri, 23 Aug 1996 22:53:49 +0000 Received: (from daemon@localhost) by ruebert.ieee.org (8.7.5/8.7.3) id NAA28121 for emc-pstc-list; Fri, 23 Aug 1996 13:21:44 -0400 (EDT) List-Post: [email protected] Date: Fri, 23 Aug 1996 13:21:44 -0400 (EDT) Date-warning: Date header was inserted by NEMATRON.COM From: Robert Terry <[email protected]> Subject: Temperature Sensitive Epoxy X-Sender: [email protected] To: [email protected] Message-id: <[email protected]> MIME-version: 1.0 X-Mailer: Windows Eudora Pro Version 2.2 (16) Content-type: text/plain; charset="us-ascii" Content-transfer-encoding: 7BIT Sender: [email protected] Precedence: bulk Reply-To: Robert Terry <[email protected]> X-Resent-To: Multiple Recipients <[email protected]> X-Listname: emc-pstc X-List-Description: Product Safety Tech. Committee, EMC Society X-Info: Help requests to [email protected] X-Info: [Un]Subscribe requests to [email protected] X-Moderator-Address: [email protected]
