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Malachai Constant
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Malachai Constant
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PostWed Feb 26, 2020 11:29 am 
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The old stuff was Scotchgard a 3M product which contained PFOS which was banned in 1999 the Scotchgard available now is non aerosol and reformulated. PFOS had a half life in the human body of 5 years and is responsible for hard to remove contamination of water supplies as it was also used in firefighting foams.

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catsp
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PostWed Feb 26, 2020 12:47 pm 
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Malachai Constant wrote:
PFOS which was banned in 1999 the Scotchgard available now is non aerosol

I believe Scotchgard is still aerosol. And it doesn't appear that there was any ban of PFOS, but rather a voluntarily agreement to phase it out of production (in the US), and even saying that may not accurately reflect the situation:

"All eight companies participating in the EPA’s PFOA Stewardship Program voluntarily phased out long-chain PFAS in favor of shorter-chain replacements, which are generally less bioaccumulative and potentially less toxic (Ritter 2010). Previously produced items and imported items may still contain longer-chain PFAS such as PFOA or PFOS (USEPA 2018b).  Some replacement PFAS are capable of degrading to PFOA or other long-chain PFAS. Recent research suggests that additional factors aside from chain length may affect the bioaccumulation potential and toxicity of individual PFAS (ITRC 2018a, Ng et al. 2014)."

EPA’s Per- and Polyfluoroalkyl Substances (PFAS) Action Plan (February 2019).

Looks like nasty stuff (partially) replaced by not as well known but possibly just as nasty stuff.

About PFAS (Washington State Department of Health)
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Forum Index > Gear Talk > Clothing link to Cancer?!
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