I do not believe it's required. If the plastic/coating and applicator are under the UL746 program then you do not need to do any testing to qualify your product. If it is not then it must be tested.
We have been using conductive coatings for 15+ years and as long as the combo is under the UL program it's been accepted without testing. Also, never have had any quality problems with these materials either. Dave Clement Motorola Inc. Global Homologation Engineering 20 Cabot Blvd. Mansfield, MA 02048 P:508-851-8259 F:508-851-8512 C:508-725-9689 mailto:[email protected] -----Original Message----- From: Darrell Locke [mailto:[email protected]] Sent: Friday, January 11, 2002 1:52 PM To: 'Aschenberg, Mat' Cc: [email protected] Subject: RE: Spray-on Conductive Coatings Thanks Matt, I was not aware that a UL approved painter/applicator was required. Is this in a standard, or is it just a common practice? Darrell Locke -----Original Message----- From: Aschenberg, Mat [mailto:[email protected]] Sent: Friday, January 11, 2002 10:34 AM To: Darrell Locke Cc: [email protected] Subject: RE: Spray-on Conductive Coatings Darrell, I have used this process in the past. It presents a bit of a safety nightmare. The products I work on are UL tested and approved. Getting a product approved with UL having a spray-on conductive coating is difficult. The spray needs to be UL listed for use with the particular plastic you are going to use. Then you need to find a UL approved Painter (applicator) who uses the UL approved process to apply the spray-on conductive coating. Once is enough. I stay away from those like a plague. Mat > -----Original Message----- > From: Darrell Locke [SMTP:[email protected]] > Sent: Friday, January 11, 2002 10:24 AM > To: [email protected] > Subject: Spray-on Conductive Coatings > > > Dear Colleages, > > We have seen an issue lately with spray-on conductive coatings used on the > inside of electronic enclosures. The coating works great for EMC, but > there > seems to be a problem with adhesion and tiny flakes of conductive material > getting in the electronics. I'm thinking that the spray-on type materials > should not be used at all. Has anyone else experienced this problem? > > Thanks > > Darrell Locke > Advanced Input Devices > Coeur d'Alene ID > > ------------------------------------------- > This message is from the IEEE EMC Society Product Safety > Technical Committee emc-pstc discussion list. > > Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ > > To cancel your subscription, send mail to: > [email protected] > with the single line: > unsubscribe emc-pstc > > For help, send mail to the list administrators: > Michael Garretson: [email protected] > Dave Heald [email protected] > > For policy questions, send mail to: > Richard Nute: [email protected] > Jim Bacher: [email protected] > > All emc-pstc postings are archived and searchable on the web at: > No longer online until our new server is brought online and the old > messages are imported into the new server. ------------------------------------------- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: [email protected] with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson: [email protected] Dave Heald [email protected] For policy questions, send mail to: Richard Nute: [email protected] Jim Bacher: [email protected] All emc-pstc postings are archived and searchable on the web at: No longer online until our new server is brought online and the old messages are imported into the new server. ------------------------------------------- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: [email protected] with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson: [email protected] Dave Heald [email protected] For policy questions, send mail to: Richard Nute: [email protected] Jim Bacher: [email protected] All emc-pstc postings are archived and searchable on the web at: No longer online until our new server is brought online and the old messages are imported into the new server.
