Vanagon EuroVan
Previous messageNext messagePrevious in topicNext in topicPrevious by same authorNext by same authorPrevious page (November 2004, week 1)Back to main VANAGON pageJoin or leave VANAGON (or change settings)ReplyPost a new messageSearchProportional fontNon-proportional font
Date:         Wed, 3 Nov 2004 00:07:27 EST
Reply-To:     FrankGRUN@AOL.COM
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Frank Grunthaner <FrankGRUN@AOL.COM>
Subject:      Re:       Re: Tail light lens
              e temps with brighter bulbs
Comments: To: DanielCRoberts@aol.com
Content-Type: text/plain; charset="US-ASCII"

In a message dated 11/2/04 8:51:27 PM, danielcroberts@AOL.COM writes:

> Interesting temperature readings. Does anyone know whether these temps for > the higher watt > bulbs are sufficient to degrade the plastic housing on the turnsignal, or > degrade other materials > near the bulb. > Dan > 89 Westy 4speed > Many commercial plastics have glass transition temperatures (significant phase or property changes) in the range of 140 to 225 C. This would lead to softening, color changes, opacity changes. All such effects are strongly enhanced by the presence of oxygen or water vapor at these temperatures.

Frank Grunthaner


Back to: Top of message | Previous page | Main VANAGON page

Please note - During the past 17 years of operation, several gigabytes of Vanagon mail messages have been archived. Searching the entire collection will take up to five minutes to complete. Please be patient!


Return to the archives @ gerry.vanagon.com


The vanagon mailing list archives are copyright (c) 1994-2011, and may not be reproduced without the express written permission of the list administrators. Posting messages to this mailing list grants a license to the mailing list administrators to reproduce the message in a compilation, either printed or electronic. All compilations will be not-for-profit, with any excess proceeds going to the Vanagon mailing list.

Any profits from list compilations go exclusively towards the management and operation of the Vanagon mailing list and vanagon mailing list web site.