bought a 3M 8200 sanding and fiberglass respirator 2 pk mask set. There is a sticker on the bag, saying best if used by November 2012. Does a dust mask expire?
And since resin dust from resin figures appears to look pretty large, any idea if a sanding/fiberglass mask would work on resin sanding?
thx - Craig
...if the masks contain an "activated charcoal" component to damp out volatile agents/fumes, that may "deactivate" over time? That's strictly a guess...
...probably more like cover-your-butt-legalese.
Hi there.
It's the dust you *CAN'T* see that does the damage. I recommend using a dust mask approved for resin.
Cheers from Peter
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