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Old 30th November 2006   #25
mdsmith64
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Location: Dublin, CA
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Quote:
Originally Posted by yumdrum View Post
Mike,
Thanks for the info, on that, I have read that as well before and I have already purchased the material for the traps so I am obviously moving forward.

However, I still reiterate my original question on the PVA mixture. Will it change the acoustical properties of the rockwool? Not as concerned about myself as I am my kid (next room over).

I know studies change as they have in the past, this is what is making me feel better about this, but at the same time is concerning. Just want to make it as safe an environment as I possibly can. As stated earlier a little spraying is no skin off my teeth and a small price to pay for a more peaceful mind.

All of the posts that I have read would not exist if I were the only one thinking about this. I also have read time and again that if left undisturbed that the rockwool poses no threat to airborn fibers, but when I play my kit in that small room sh*t falls off the shelves. So I feel that my question is valid and may be beneficial to someone else in my situation. thanks.
Well, first of all I completely understand your distrust. I accept it fully and encourage you to do what is right for you. I have a 12 month old girl at home as well and she is always welcome in my studio by the way. Having said this, I think you are trading one risk for another, more serious risk. Here is the MSDS for PVA adhesives:

http://www.wilsonart.com/productlib/...s/00017261.pdf

Here are some important excerpts:

"This product may contain small amounts of vinyl acetate, vapors of which have been shown to cause tumors in the respiratory tract of laboratory animals. There is no evidence that is has caused cancer in humans."

"A component of this product has been tested for potential reproductive and teratogenic effects. When administered orally to rats and mice at doses which produced toxic effects in the mother, tissue and skeletal malformations were noted. However, no effects were seen in the rabbits treated with this
compound."

"This product contains a chemical that is a suspected endocrine disrupter. Endocrine/hormone disrupters are external agents that interfere in some way with the role of natural hormones in the body. While a variety of chemicals have been found to cause endocrine disruption in laboratory animals, adverse effects in humans have not not been established. (US EPA Special Report on Endocrine
Disruption, February 1997.)"

"Vinyl acetate is metabolized to acetaldehyde, which has an IARC 2B (possibly carcinogenic to humans) classification, it has also been listed in Category 2B.


Now, for me I'd be much more worried about putting this stuff in my environment than I would be about the mineral wool. That's just me. This is part of what I mean my keeping perspective.

I can't help but wonder if this misunderstanding is coming from peoples association of insulating materials and asbestos. I'm not say you are making this association, just a general question.

Again, I completely understand that people have different risk tolerances. Having said this, I think making educated decisions about risk is equally important. YMMV.


Best Regards,

Mike.
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