We have similar issue on some portable electronic products with rubber paint coating. If you continue to use it, the rubber paint gives a good feeling to the users. However, it you do not use it for a period of time, the coating gets wet and sticky. The users cannot remove it. It appears to be a common issue on rubber paint coating and happens on most of products as far as I know. Can this test method or other test give some indication how soon to have such bad effect.
Thanks and regards, Scott On 20/05/2011 6:50 AM, "Brian Ceresney" <[email protected]> wrote: Gary, We had a similar situation in the past, with a customer requesting UV testing for an outside plastic receptacle to SAE J2527, Standard for “Accelerated Exposure of Automotive Exterior Materials Using A Controlled Irradiance Xenon-Arc Apparatus” (which I’m told replaced SAE 1960). This standard gives the operating procedures, but not the exposure amounts or limits. The accumulated exposure requested by our customer was 2500kJ, which took approximately 12 weeks to occur. I’m told that this figure was obtained by reviewing automotive standards(possibly General Motors) for weathering of painted surfaces in extreme climates(Florida, IIRC), but we used it on the exposed plastic material. The pass/fail criteria was based upon the testing lab measuring colour changes in CIELAB color difference units, with limits specified by the customer. I believe ASTM D2244 gives a test method for that. Best Regards, Brian C. Brian Ceresney, CTech. Regulatory Team Lead, Delta-Q Technologies Corp. 3755 Willingdon Ave., Burnaby, BC Canada V5G 3H3 Tel: 604-566-8827 www.delta-q.com <http://www.delta-q.com/> [email protected] <mailto:[email protected]> Confidentiality Notice: This email message, including any attachments, is for the sole use of the intended recipient(s) and may contain confidential and privileged information. Any unauthorized review, use, disclosure or distribution is prohibited. If you are not the intended recipient, please contact the sender by reply e-mail and destroy all copies of the original message. From: [email protected] [mailto:[email protected]] On Behalf Of McInturff, Gary Sent: May 19, 2011 7:41 AM To: [email protected] Subject: Actinic effects tests using ISO 11341 I have a customer pulling a request out of an area very near his rear pants pocket. The goal is to understand the color fastness of a molded plastic after artificial weathering – exposure to a Xenon lamp for X number of days. I can get the test done but the client hasn’t specified and doesn’t know a test duration and the referenced standard doesn’t provide information on how to deduce a test length. The customer has no input on this and the closest reference I have is the US militaries Solar loading tests for 10 days for occasional use outdoors. Additionally the referenced standard is for paints and varnishes rather than molded plastics – does anyone have 1) and typical test duration, and 2) is there a more appropriate standard for color fastness of molded plastics? Gary McInturff - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to <[email protected]> All emc-pstc postings are archived and searchable on the web at http://product-compliance.oc.ieee.org/ Graphics (in well-used formats), large files, etc. can be posted to that URL. Website: http://www.ieee-pses.org/ Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas <[email protected]> Mike Cantwell <[email protected]> For policy questions, send mail to: Jim Bacher <[email protected]> David Heald <[email protected]> - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to <[email protected]> All emc-pstc postings are archived and searchable on the web at http://product-compliance.oc.ieee.org/ Graphics (in well-used formats), large files, etc. can be posted to that URL. Website: http://www.ieee-pses.org/ Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas <[email protected]> Mike Cantwell <[email protected]> For policy questions, send mail to: Jim Bacher <[email protected]> David Heald <[email protected]> - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to <[email protected]> All emc-pstc postings are archived and searchable on the web at http://product-compliance.oc.ieee.org/ Graphics (in well-used formats), large files, etc. can be posted to that URL. Website: http://www.ieee-pses.org/ Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas <[email protected]> Mike Cantwell <[email protected]> For policy questions, send mail to: Jim Bacher <[email protected]> David Heald <[email protected]>
