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  Polypropylene vs PETG packaging

  Posted by suswang8 on November 4, 2021 at 1:20 am

  Hello, all.

  Does anyone know which type of plastic (PP vs PETG) might not be suitable for a toner with (up to) 15% ethanol and a pH of 3.6?

  The supplier I am using is well-known but say they do not make claims about which specific types of products are contraindicated.

  (I prefer to use glass packaging, but there are no options if you want to go airless.)

  chemicalmatt replied 3 years, 1 month ago 2 Members · 1 Reply
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  chemicalmatt

  Member

  November 4, 2021 at 3:20 pm

  I recommend using PETG for ethanol content such as this. Polypropylene will work but not as well. Both resins hold up at that  pH too.

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