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Posted by SteveB on June 23, 2008, 10:46 pm
> Just how unsafe is hardiboard to cut & nail? Reason I'm asking is
> because I just bought a new canister set for my AOS face mask and the
> instructions say it protects against organic vapors but not silica
> dust. Now I always thought a vapor was much finer than a dust, but I
> guess not. I'm planning on replacing a bunch of masonite with
> hardiboard panels but now I'm not sure what type breathing protection
> I need when cutting the stuff.
Protection from organic vapors is a chemical process. Protection from
silica dust is just a really, really fine filter. Presumably the holes in
the organic canister are big enough to let small silica particles through;
or silica will plug it up really fast; or silica neutralizes the chemical
process; or something else I can't think of right now. Not knowing much,
I'd bet on the first one.
Nailing is no problem, but sawing makes lots of dust. You don't want to
breathe the dust.
You can get "scissors" for Hardie products. They're fast, easy to use, and
make no dust. You can rent them if you don't want to buy.
--
Steve Bell
New Life Home Improvement
Arlington, TX
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