Although I don't want clean mold, I want gone mold ;)
I've got a patch on one of the concrete basement walls that I want to get
rid of, prior to painting the wall with moisture-sealer. A professional
cleaning company at my wife's work said that bleach isn't so good though,
and that Dawn is far more effective - is there any truth to that? My
natural instinct would have been to use a bleach solution...
The Dawn under our kitchen sink is a decent household detergent. No
claims for anything beyond that.
The bleach in the laundry, OTOH, councils against skin contact,
ingestion, etc. and mentions sanitizing bathrooms, cleaning toilets
Given that mold organisms are living things, seems logical that the
rougher chemical is better for killing the colonies. My vote's for
If the mold has already died from UV exposure or whatever, then a kind
detergent like Dawn would be helpful to wash away the corpses.
Why not try both? In proper sequence, of course. In any event, you
need a good clean surface for your concrete treatment.
Yeah, that was my thinking too. I wish I knew why these guys said Dawn
was better. Maybe it's some crappy health and safety thing and they're
worried about using bleach in confined spaces, so the Dawn does a worse
job but is less risky in their eyes...
Yeah, the sealer/paint I was looking at the other day contained something
to help prevent mold re-growth, but it didn't say anything about whether
it could be applied straight on top of existing mold ;-)
A couple of yr ago, the home inspector found mold in a house I was
selling. ("Real" mold, like the kind I had to hire a mold remediator for
and then get another set of tests run to verify it had been removed).
The company used this stuff:
http://www.serumsystem.com/theserumsystem.html . It's basically peroxide
and bubbled the mold out from the walls (in my case wood, so I don't
know if concrete makes a diff). Then they could vacuum it off.
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