3 ms·
Those articles describe PTFE as "stable and non-toxic at lower temperatures", starting to degrade into concerning and toxic byproducts at 500F/260C. As a rule,
by XMPPwocky 7y ago
Those articles describe PTFE as "stable and non-toxic at lower temperatures", starting to degrade into concerning and toxic byproducts at 500F/260C.
As a rule, I try not to let my rain jacket reach 260C, but your local weather may differ?
- reportingsjr 7y agoPTFE coated pans definitely reach above 500F from time to time. People who own birds are suggested to not use PTFE coated pans. Birds are much more sensitive to the offgased chemicals and there are numerous instances of people accidentally killing pet birds from these fumes, so it definitely happens.
- XMPPwocky 7y agoYeah- there are definitely problems with it on pans, but the context of the thread was for PTFE as a water repellent in clothing. As far as I know, the concerns for uses where high heat isn't an issue are related to manufacturing byproducts- which can make their way into the final product, but also if the manufacturer doesn't dispose of them correctly, they can wind up in the environment. It's almost a bit like Agent Orange (though probably not nearly as bad, at least not in the medium-term?)- the intended product isn't the problem, but the manufacturing process makes it really easy to let nasty stuff slip in. But I don't know that much about this, so please correct me if I'm wrong! Not a chemist, I just read a lot.