Tried deleting this post. I solved my own problem
However, this subject may be useful for others.
In general is it ok to use heat guns on pens with metal overlays such as silver or gold or any other metal? Would advice can you give for doing so. Especially since the metal can be so close to the area you need to heat.
Edited by Ray Cornett, 14 March 2014 - 11:24.