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repairing mullite rods

Posted: Sun Dec 07, 2014 10:23 pm
by Cheryl
I hate paying $45 for a replacement mullite rod - the ones that suspend my kiln elements. Does anyone have any thoughts about repairing them? They're hollow (and so even more doggone fragile). Thanks!

Re: repairing mullite rods

Posted: Sun Dec 07, 2014 11:11 pm
by Kevin Midgley
borosilicate rod in the hollow tube?

Re: repairing mullite rods

Posted: Thu Dec 11, 2014 12:31 pm
by Mark Hall
I don't know if this will help, but you can use hollow quartz glass rods instead, placing the coil inside the rod. It's cheaper and more efficient.

Re: repairing mullite rods

Posted: Fri Dec 12, 2014 6:40 pm
by Marty
That usually means replacing the entire system. You can try heating the bent parts of the elements with a torch to straighten them out and then insert them into the quartz tubing but I'd start by spending the $45 (or find another supplier).

Re: repairing mullite rods

Posted: Sun Dec 14, 2014 12:57 pm
by Bert Weiss

Re: repairing mullite rods

Posted: Sun Dec 14, 2014 2:10 pm
by Mark Hall
Great link Bert. This company is the ticket for all your kiln needs - I really like their very affordable stock coils for our home-made kilns!

Re: repairing mullite rods

Posted: Sun Dec 14, 2014 2:55 pm
by Marty
Mark- I've used them for 2 large homemade ones. Great people to deal with.

Re: repairing mullite rods

Posted: Mon Dec 15, 2014 3:42 am
by Bert Weiss
Mark Hall wrote:Great link Bert. This company is the ticket for all your kiln needs - I really like their very affordable stock coils for our home-made kilns!
They can make any element for any kiln, on a custom basis. I heartily endorse them.