Pete, Before you try the Dow "OS-2", let me tell a little story. This material works by causing the silicone to expand, to the point where is looses its grip. I had an engineering prototype of a small sensor assembly that the design guys wanted stripped of coating for some reason or another. So, I let the assembly sit submerged in some OS-2 for 5-10 minutes. I then removed the assembly and brushed off the loose coating. After repeated the process a couple of times I had removed the vast majority of the visible coating, but there was still some coating under the components. I figured I would just let the assembly sit in the OS-2 overnight. When I pulled the assembly out the following morning, the silicone had expanded enough that it popped every SO-8 and SO-14 right off the board. The silicone had developed enough force under the parts to pull the legs right out of the solder fillet. Gary Camac "" wrote: > Hi, TechNetters, > > I am trying to find a solvent for removing 3M's RTV 738 that has been used > for bonding components to a number of boards, or to each other. Any > suggestions? > > I have tried 3M themselves and they have no solvent of their own apart from > "Citrus Base Adhesive Remover" that 'may soften' it enough to peel it off, > but this seems pretty indefinite. > > Thanks in hope > > Pete Duncan > Asst Principal Engineer > Singapore Technologies Aerospace > > --------------------------------------------------------------------------------- > 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 ---------------------------------------------------------------------------------