I bought one when they first came out. Tips are some carbon derivative and used (I think) a capacitive charge to heat the joint and just the joint. NOT POSITIVE about the working theory, just knew that the tip was safe to touch except for the gap in the very end. Never tried it on plastic. Lousy for fine soldering, which is what I wanted it for. Take up Jeremy's offer if you want to help your friend. Sarita -----Original Message----- From: Laura McCarthy <ljmccarthy@xxxxxxxxx> To: hackpgh-discuss <hackpgh-discuss@xxxxxxxxxxxxx> Sent: Fri, Jun 1, 2012 10:38 am Subject: [hackpgh-discuss] ColdHeat soldering iron Has anyone ever used this ColdHeat soldering iron before? http://www.amazon.com/gp/aw/d/B000RWCRAM My friend is interested in it for working on modding action figures - he heard it would get to a good temperature to just melt plastic a little so he could remove a part without melting/burning it completely. The internet doesn't like it because it doesn't get hot enough to do any actual soldering. I figured I would ask the experts if you guys had any other ideas for slightly melting plastic. Thanks, Laura