Delrin and BPA
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Delrin and BPA
Does anyone know if Delrin contains BPA?
- Jerry Freeman
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I believe it does not.
Although I haven't found a specific citation stating that Delrin/acetyl plastic doesn't contain bisphenol-A, there are many references that state that BPA is used in epoxies and polycarbonates, which are different families of plastics from Delrin. So far, I haven't seen any reference to any other plastic than polycarbonate and epoxy containing BPA.
Best wishes,
Jerry
Although I haven't found a specific citation stating that Delrin/acetyl plastic doesn't contain bisphenol-A, there are many references that state that BPA is used in epoxies and polycarbonates, which are different families of plastics from Delrin. So far, I haven't seen any reference to any other plastic than polycarbonate and epoxy containing BPA.
Best wishes,
Jerry
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- Jerry Freeman
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Bisphenol-A is a possible hormone disrupter, a manmade chemical that mimics the effects of estrogen.
The sources of exposure of greatest concern are the epoxy linings of tin cans (especially tin cans of infant formula) and polycarbonate nursing bottles. There's greater concern about effects on infants because of possible developmental effects that would not be at issue in adults.
Best wishes,
Jerry
The sources of exposure of greatest concern are the epoxy linings of tin cans (especially tin cans of infant formula) and polycarbonate nursing bottles. There's greater concern about effects on infants because of possible developmental effects that would not be at issue in adults.
Best wishes,
Jerry
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"Breast is best". No excuses, now!Jerry Freeman wrote:Bisphenol-A is a possible hormone disrupter, a manmade chemical that mimics the effects of estrogen.
The sources of exposure of greatest concern are the epoxy linings of tin cans (especially tin cans of infant formula) and polycarbonate nursing bottles. There's greater concern about effects on infants because of possible developmental effects that would not be at issue in adults.
Best wishes,
Jerry
I respect people's privilege to hold their beliefs, whatever those may be (within reason), but respect the beliefs themselves? You gotta be kidding!
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For infants or adults there Jem?jemtheflute wrote:"Breast is best". No excuses, now!Jerry Freeman wrote:Bisphenol-A is a possible hormone disrupter, a manmade chemical that mimics the effects of estrogen.
The sources of exposure of greatest concern are the epoxy linings of tin cans (especially tin cans of infant formula) and polycarbonate nursing bottles. There's greater concern about effects on infants because of possible developmental effects that would not be at issue in adults.
Best wishes,
Jerry
Let me tell you the story
Of a man named jloug
On a tragic and fateful day
He put a post on C&F,
Just to ask 'bout delrin
And something else called BPA
Of a man named jloug
On a tragic and fateful day
He put a post on C&F,
Just to ask 'bout delrin
And something else called BPA
- Did the answer get learned?
No, it never got learned
And the stone remains unturn'd
He may wait forever
For some sort of answer
It's the answer that never was learned.
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Ain't that supposed to be sung to the tune of MTA as sung by the Kingston Trio?fearfaoin wrote:Let me tell you the story
Of a man named jloug
On a tragic and fateful day
He put a post on C&F,
Just to ask 'bout delrin
And something else called BPAJust kidding guys, great answers!
- Did the answer get learned?
No, it never got learned
And the stone remains unturn'd
He may wait forever
For some sort of answer
It's the answer that never was learned.
Seems to me with the inherent stability of delrin, your potential for absorption of BPA by casual flute playing is extremely small. Plus, BPA is flushed out of your system by beer
So you're saying the estrogen effects of BPA is a good thing?jemtheflute wrote:"Breast is best". No excuses, now!
(Yes, the question is obviously a booby trap.)
---
http://www.bisphenol-a.org/human/epoxycan.html
Obviously a bad pun.Guinness wrote:obviously a booby trapjemtheflute wrote:"Breast is best".
We periodically get these questions about chemicals on an item we handle for an hour or so per day. Meanwhile, we drink gallons of water, soda and other liquids from plastic bottles, store our leftovers in plastic tins, take home our left-over dinner in plastic "doggie bags," eat sandwiches, candy bars, breakfast burritos and frozen vegetables stored for ages in plastic and on and on. Never mind all the chemicals loaded in those foods before they were ever wrapped in plastic. Anyone who worries about chemicals in their whistles either isn't paying attention or has way, way too much time on their hands. Thank you for allowing me this rant. We now return you to our regularly scheduled programming.
The Walrus
What would a wild walrus whistle if a walrus could whistle wild?
The second mouse may get the cheese but the presentation leaves a lot to be desired.
What would a wild walrus whistle if a walrus could whistle wild?
The second mouse may get the cheese but the presentation leaves a lot to be desired.
The Walrus is right. And not only that but there's a story the news isn't telling you, which is the accumulation in the environment of plastic particles. Plastic gets into the environment as litter, as industrial waste and when shipping containers fall off ships.
As it degrades (by the sun -- photodegredation) the plastic pieces get smaller and enter the food chain at the bottom through filter-feeders in the ocean, concentrating the estrogenic effects up the chain. There's an area in the Pacific Ocean the size of Texas with 6 times more plastic by weight than biological life.
I'd worry more about the containers your food and other items are packaged in than your flute if I were you.
As it degrades (by the sun -- photodegredation) the plastic pieces get smaller and enter the food chain at the bottom through filter-feeders in the ocean, concentrating the estrogenic effects up the chain. There's an area in the Pacific Ocean the size of Texas with 6 times more plastic by weight than biological life.
I'd worry more about the containers your food and other items are packaged in than your flute if I were you.
~ Diane
Flutes: Tipple D and E flutes and a Casey Burns Boxwood Rudall D flute
Whistles: Jerry Freeman Tweaked D Blackbird
Flutes: Tipple D and E flutes and a Casey Burns Boxwood Rudall D flute
Whistles: Jerry Freeman Tweaked D Blackbird