Carole Fox on tue 16 oct 07
I noticed a while ago that the underside of my kiln lid has a few large
blisters on it. I can always flip the lid over if the surface starts to
crack and spall, but I am wondering what caused the blistering. Is there
something that I can do to prevent further deterioration? The kiln is a
Skutt 818 3 section manual kiln. It is rated for ^10 but has never been
fired higher than ^7.
Is this blistering normal?
Carole Fox
Dayton, OH
Arnold Howard on tue 16 oct 07
From: "Carole Fox"
>I noticed a while ago that the underside of my kiln lid
>has a few large
> blisters on it.
------------
Carole, the inside lid surface is coated to reduce dust. If
the refractory coating is too thick, it will blister just as
you describe.
It is easy to repair, though. Lightly remove the blistering
with grit cloth or sandpaper, and apply a new coat over that
area. Or you could even leave it uncoated.
I will post a new video on coating the lid at this link by
tomorrow or the next day:
http://www.paragonweb.com/videos.cfm
You can also download "Firebrick Repair Instructions" from
this link:
http://www.paragonweb.com/Instruction_Manuals.cfm
Sometimes a new employee with apply lid coating too thick,
because they want it to look even, as if they were trying to
paint something without streaks. But the ideal coating
should be thin enough so that you can still see the
firebricks underneath.
Sincerely,
Arnold Howard
Paragon Industries, L.P., Mesquite, Texas USA
ahoward@paragonweb.com / www.paragonweb.com
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