You make it sound like halogen free laminate is somehow "more green".?? To make it UL 94 V-0, they had to add something.? So what about the nitrogen, phosphorus or aluminum related compounds that must be given off in burning?? What does it say about them? 

Denny Fritz
MacDermid, Inc.? 


-----Original Message-----
From: Geoff Layhe of Lamar Group <[log in to unmask]>
To: [log in to unmask]
Sent: Wed, 11 Mar 2009 5:03 am
Subject: Re: [TN] What chemicals are given off by a burning FR4 circuit board?



According to the MSDS:-
CO, CO2, N-Oxides, HBr, organic bromium containing compounds. Halogen
free FR4 doesn't contain the last 2.
Some MSDS's also give small quantities of HCN and aldehydes.

Geoff Layhe
Lamar Group Limited

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Bev Christian
Sent: 11 March 2009 02:06
To: [log in to unmask]
Subject: [TN] What chemicals are given off by a burning FR4 circuit
board?

Title says it all.
Bev
RIM



---------------------------------------------------
Technet Mail List provided as a service by IPC using LISTSERV 15.0
To unsubscribe, send a message to [log in to unmask] with following text in
the BODY (NOT the subject field): SIGNOFF Technet
To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL)
To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest
Search the archives of previous posts at: http://listserv.ipc.org/archives
Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815
-----------------------------------------------------