I posted an inquiry a few weeks ago about cutting old plastered wall that is
has af gypsum lath as a double layer wall board.
I need to cut small holes on these existing walls for electrical outlets,
intercom units, and also old demolished walls that have unclean tearouts at
corners that have embedded wire meshes. Initially I tried to use a
recipricating saw, no luck, then tried a rotaty tool and that worked fine
for like 5 minutes, then today I tried an angle grinder and it worked.
I knew it would be dusty, so I prepared and worn an extra layer of clothing,
I put on a cap, a twin catridge respiratory mask, a eye protecting mask and
went to work. It was DUSTY. When I cut the corner joints at the ceiling
there were so much dust flying it's like snowing right into my face. I
forged ahead and kept going. Soon I can't see the chalk lines I drew
because it was so dusty. I opened the doors and the dust started to float
outdoors and it does not settle, it seems to float up.
I took my mask off and it has dust inside the mask, which was unexpected
since I was wearing it very tight. Next I have this gritty taste in my
mouth, did the dust get inside the respirator? I looked at myself and I am
like snowman. I had some of this dust in my hand and it didn't feel like
dust it's like silt and it's all over me. I am starting to worry...does
plaster (built in 1972) have asbestos? It seems to have gotten inside every
of my pore, I mean, I was wearing long pants outside and shorts inside, and
I had my cell phone inside my short back pocket. When I cleaned up and took
out my phone, I flipped it open and it opened half way, dust got inside the
hinge and clogged it! How does it get past two layers of clothing?
I am only half done, after doing this for about six hours, but I am
hesitating to go forward without knowing more about this dusty silt and if
it could be a health hazard. Is there a mask that can protect against this?