Cecilia, From past experiences, I found that two of the major Si adhesive producers both had "left over" monomers in theior adhesives, and gels, even when fully cured, Unless the manufacturers make their product truely stochiometric, there will be something free to float about in the product case. When I quizzed them about this, and asked for weight loss data etc, they both promised the stuff, and then went mysteriously quiet. I guess some of the more polymer oriented folks on TN will be able to help more!! Roger Motorola AIEG ______________________________ Reply Separator _________________________________ Subject: [TN] Silicon and eletronic production Author: "TechNet E-Mail Forum." <[log in to unmask]> at #email Date: 10/09/99 10:47 Hello! What is the stat of the art regarding silicon adhesives and any silicon products in the electronics industry? Our company has a strong restriction against any silicon. Has the adhesives etc improved so that no monomers etc can evaporate? Cecilia Alkhagen ****************************************** Ericsson Microwave Systems AB Production Engineering Development Bergfotsgatan 2 S-431 84 Mölndal Telephone +46 31 747 0000 Direct +46 31 747 0288 Fax +46 31 747 2635 ############################################################## TechNet Mail List provided as a free service by IPC using LISTSERV 1.8c ############################################################## To subscribe/unsubscribe, send a message to [log in to unmask] with following text in the body: To subscribe: SUBSCRIBE TECHNET <your full name> To unsubscribe: SIGNOFF TECHNET ############################################################## Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional information. If you need assistance - contact Gayatri Sardeshpande at [log in to unmask] or 847-509-9700 ext.5365 ############################################################## ############################################################## TechNet Mail List provided as a free service by IPC using LISTSERV 1.8c ############################################################## To subscribe/unsubscribe, send a message to [log in to unmask] with following text in the body: To subscribe: SUBSCRIBE TECHNET <your full name> To unsubscribe: SIGNOFF TECHNET ############################################################## Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional information. If you need assistance - contact Gayatri Sardeshpande at [log in to unmask] or 847-509-9700 ext.5365 ##############################################################