Overexposure to both MEK and MPK will give headaches too...and eye and nose irritation... Hans Shin PTL -----Original Message----- From: Hans Hinners [SMTP:[log in to unmask]] Sent: Thursday, July 19, 2001 1:47 PM To: [log in to unmask] Subject: Re: [TN] White residue from conformal coating Only reason I ask is because, I had to get extra special permission to use some MEK (100%) to thin out a potting compound when I was at Robins. Reducing toluene & xylene exposure is very commendable - nothing like that solvent headache killing brain cells. H -----Original Message----- From: [log in to unmask] [mailto:[log in to unmask]] Sent: Thursday, July 19, 2001 1:32 PM To: TechNet E-Mail Forum.; Hans Hinners Subject: Re: [TN] White residue from conformal coating Does MPK have the same health concerns as MEK? *Dunno. The man in charge of our coating specification wants me to look into MPK because it supposedly has a lower health risk than the toluene/xylene that we currently use (by the carload). I have not looked at MPK vs. MEK, but the chemistries are very similar. Whats a carbon atom between friends? Doug --------------------------------------------------------------------------------- Technet Mail List provided as a free service by IPC using LISTSERV 1.8d 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 delivery of Technet send the following message: SET Technet NOMAIL Search previous postings at: www.ipc.org > On-Line Resources & Databases > E-mail Archives Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 --------------------------------------------------------------------------------- --------------------------------------------------------------------------------- Technet Mail List provided as a free service by IPC using LISTSERV 1.8d 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 delivery of Technet send the following message: SET Technet NOMAIL Search previous postings at: www.ipc.org > On-Line Resources & Databases > E-mail Archives Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 ---------------------------------------------------------------------------------