Bruce Girrell on wed 1 feb 06
Well,
The folks at Wessex called me almost immediately after receiving my email.
I'll give the answers to the questions that I had asked them below, but for
those of you looking for the short answer...
As I was talking with the Wessex rep he said, "Well, you know, sometimes we
get the random call from some potter wanting to know if they can apply this
to their pottery kilns and we just have to tell them that it's way too
expensive for that."
Oh well.
The product is water based and is usually applied as a spray. It adheres
very well to most surfaces, including metal if the surface preparation is
properly done. When properly applied to metal it will not chip off even if
hammered. IFB is a "slam dunk" according to the rep. He considered RCF their
most challenging substrate primarily because, while the coating is good, the
RCF itself fails due to degradation from prior exposure to heat. If the
coating is applied to brand new RCF then it provides good protection and
minimizes or eliminates shrinkage of the RCF. Therefore, if Emisshield is
applied to RCF it is recommended to be applied only to new material. They
are still studying the best method of application for RCF.
The rep said that he would have to get back to me on the effect of NaCl at
1250 deg C, but he said that they had a number of different compositions and
he thought that one of them was actually created to withstand salt.
The product is not sold outright and the rep has not yet given me even a
ballpark figure for a per square foot cost of installation. He said that the
material is usually quoted on a job by job basis and is applied by
technicians who come to your site to do the application.
I suspect that large kilns that are fired often, such as those at a
university, might still make use of this material. And for those absolutely
dedicated to salt firing, the prospect of a formulation specially designed
for salt firing might still hold some appeal. For the rest of us though,
it's probably out of our league.
Bruce "bearer of bad news" Girrell
Bruce Girrell on wed 1 feb 06
I'm game. Our company has a suitable enough sounding name (Microline
Technology Corp.) that they will probably give a decent reply. I sent off a
list of questions regarding application method, suitability for application
to IFB and RCF, chemical protection from NaCl vapor at 1250 deg C, package
sizes, expected coverage, and cost.
I'll post to the list when I get an answer.
Bruce "hot stuff" Girrell
Bryan Hannis on wed 1 feb 06
Hi
Has anyone looked at or tried "Emisshield" for soating salt kilns?? They are at
www.wessexinc.com
Bryan Hannis
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