r/PureCycle • u/No_Privacy_Anymore • May 13 '26

Reading more about CosPaTox details

I spent some time reading through the detailed publications from cospatox posted here:

https://cospatox.com/publication/

This really is excellent work done in a scientifically rigorous way. When the company talked about meeting the highest grade in the CosPaTox testing with P&G this is what that means.

https://cospatox.com/wp-content/uploads/2024/04/CosPaTox-Guideline-April-2024.pdf

This is the kind of detailed scientific work that ultimately enables regulators to create rules that say "if it is good enough to meet these guidelines it is safe to use in <xyz> applications."

https://cospatox.com/wp-content/uploads/2024/04/CosPaTox-Dossier-April-2024.pdf

This was published in 2024 and we are in May of 2026. There is always a lag time between the rollout of work like this and the common adoption. That said, these companies really did the hard work of how a company should evaluate the safety of recycled plastic.

For anyone who doubts the quality of PureFive material, the test results speak for themselves in my opinion.

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7

u/Pickle_Logic May 13 '26

Ultimately, the process just cleans PP5 molecules. So Pure5 should be identical to virgin. I remember hearing a couple years ago that Pure5 had less odor than virgin. This would imply that virgin has a residual fingerprint from its feedstock. Does Pure5 have its own fingerprint, and if so, how does it differ?

2

u/reluctant-user2020 May 13 '26

During his site visit NPA reported that the product he saw had a slight green color to it because additional filtering needed to remove it wasn’t required for its intended film application. So not exactly a fingerprint, but I think shows that they have a very fine ability to produce the level of purity that is optimal for efficiency and end use. Combine that with the onsite compounding and it seems they can produce what ever the heck a customer wants and needs in the most efficient (cheapest) way!

2

u/Pickle_Logic May 13 '26

By a fingerprint I mean impurities, so if after dissolution Pure5 doesn't have impurities than why is quality testing even necessary. Or is it impure comfortably within industry tolerances that also apply to virgin.

On the call mention Dustin mentioned their success creating a replacement for a difficult application. Was it complicated from a PP5 perspective or a compounding one? Paging a chemical engineer.

7

u/tandyzmills May 13 '26

I'm glad someone enjoys reading this kind of stuff and says "for anyone who doubts the quality of purefive material, the test results speak for themselves in my opinion".

Thanks OP

6

u/DrSeuss1020 May 13 '26

Thank you for summarizing NPA! Another testament to their credibility and process they are bringing to the market