PurpleLama@aol.com on tue 3 jun 97
Because of my family (asthma & lung cancer) history, in the debate of fiber
vs brick, I always weigh in on the brick side. However, the new Axner catalog
includes the Heat Wave Raku kiln made from pressed rigid ceramic fiber.
According to the catalog, the health hazards summary statement from the
blanket's manufacturer states that "This amorphous wool was designed for
enhanced solubility in lung tissue. Rats have been exposed 6 hours/day, 5
days/week [my comment - they get off weekends? ] during two years at an
average concentration of 200 fibers/cc )200 to 300 times higher than the
concentrations found in manufacturing plans). Preliminary findings indicate
- no formation of fibrous tissue
- no significantly elevated tumor incidence over the negative (air) control
group
- reversible cellular changes similar to the effects observed after
inhalation of inert dust."
Furthermore, the fiber walls are coated with ITC high temperature ceramic
coating. [my comment - I know people have been singing the praises of ITC
lately]
I still have some discomfort because the findings are "preliminary." However,
have my chances of getting a light weight raku kiln just increased? Or should
I stick with brick until the final results are in? I don't want to rehash the
fiber vs brick debate. I just thought this might be something new??????????
By the way, as of yesterday (6/2), the price of the raku kiln had not yet
been determined.
stevemills on sat 7 jun 97
Hi, I would still treat this new kiln with care, given your medical
history,however this does sound like a step forward which is welcome
especially from my point of view as a ceramic supplier who stocks fibre.
I would still wear an effective respirator while working with it.
In your shoes I'd get it.
Steve
In message , PurpleLama@aol.com writes
>----------------------------Original message----------------------------
>Because of my family (asthma & lung cancer) history, in the debate of fiber
>vs brick, I always weigh in on the brick side. However, the new Axner catalog
>includes the Heat Wave Raku kiln made from pressed rigid ceramic fiber.
>According to the catalog, the health hazards summary statement from the
>blanket's manufacturer states that "This amorphous wool was designed for
>enhanced solubility in lung tissue. Rats have been exposed 6 hours/day, 5
>days/week [my comment - they get off weekends? ] during two years at an
>average concentration of 200 fibers/cc )200 to 300 times higher than the
>concentrations found in manufacturing plans). Preliminary findings indicate
> - no formation of fibrous tissue
> - no significantly elevated tumor incidence over the negative (air) control
>group
> - reversible cellular changes similar to the effects observed after
>inhalation of inert dust."
>Furthermore, the fiber walls are coated with ITC high temperature ceramic
>coating. [my comment - I know people have been singing the praises of ITC
>lately]
>
>I still have some discomfort because the findings are "preliminary." However,
>have my chances of getting a light weight raku kiln just increased? Or should
>I stick with brick until the final results are in? I don't want to rehash the
>fiber vs brick debate. I just thought this might be something new??????????
>
>By the way, as of yesterday (6/2), the price of the raku kiln had not yet
>been determined.
>
--
Steve Mills
@Bath Potters Supplies
Dorset Close
Bath
BA2 3RF
UK
Tel:(44) (0)1225 337046
Fax:(44) (0)1225 462712
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