On Thu, Jun 6, 2013 at 11:26 AM, veegee wrote: > Hi all, > > I'm making a small melting tube that can quickly melt wax and pour on > demand. It's simply 3" long piece of 3/4" copper pipe with uninsulated > NiCr wire to be wrapped around it. What's the best way to wrap the NiCr > around the tube without shorting it? One option is high temperature > manifold paint, but I'd rather find a more thermally conductive (yet > electrically insulated) solution. Better than coatings, a better idea might be not to allow the wire to get in contact with your tube. One idea would be to use ceramic beads on the Ni-Cr wire at even distances, so that these beads alone come in contact with your pipe. Ceramic beads are used inside many soldering irons and other such applications where such operation is required. Regards, Manu --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .