Hi, Peter asked: >I don't know about bending mica, but where did you get the stuff? > I haven't actually bought any yet, but I found: http://www.stovefinders.com/p-mica-index.html also there are other sites: http://www.pleo.com/bcmica/bcmica.htm http://micasales.com/ Looking at the mica which I have salvaged from the expired element I think I can probably do a reasonable job by re-using this old mica, and joggle the layers, so that the hole which was burned through the layers by the arc is staggered in each layer. I'm not quite sure what thickness of mica I need to withstand the normal 230v mains. Cheers, Roger Mason, in St. Agnes. MODEL ENGINEERING DISCUSSION LIST. To UNSUBSCRIBE from this list, send a blank email to, modeleng-request@xxxxxxxxxxxxx with the word "unsubscribe" in the subject line.