Gary Harvey on fri 16 apr 04
I have a question for yall. (That's Texas for "You All") The double =
sided paint masks that are used for spray painting and carpenter work in =
the hardware stores are they safe for use in making glazes from =
recipies or for use in dusty type work around a studio? I am about the =
try some of the glaze recipies in "Cone 6 glazes" by John and Ron so I =
am looking at these. GH
John Hesselberth on sat 17 apr 04
On Friday, April 16, 2004, at 10:23 PM, Gary Harvey wrote:
> The double sided paint masks that are used for spray painting and
> carpenter work in the hardware stores are they safe for use in making
> glazes from recipies or for use in dusty type work around a studio?
Hi Gary,
In a word, No. Those are made to filter so-called nuisance dusts which
have a particle size much bigger than the materials we work with.
Silica dust will go right through those. Go to a good industrial supply
store like Graingers or a store that specializes in industrial safety
equipment and get a mask that has a P100 rating. It removes 99.97% of
0.3 micron particles. They cost from $20-$50 depending on the features.
I buy the ones that are about $25 and replace them every year or so.
There is an excellent series of 2 articles in Clay Times Nov/Dec 1999
and Jan/Feb 2000 written by Monona Rossol that expands on what I've
said above.
Regards,
John
http://www.frogpondpottery.com
http://www.masteringglazes.com
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