Materials ozone resistance chart

A common question when implementing ozone into a new application is how will ozone affect the materials we currently have in place.  Below is a useful chart showing the resistance of common materials to ozone oxidation.

A = Excellent – no effect from ozone in normal operation

B = Good – some oxidation from ozone, these materials can work with low ozone concentrations or short-term (less than 6-month) usage

C = Fair – major effect from ozone oxidation, these materials should only be used for short-term applications or very low ozone levels

D = Poor – severe oxidation from ozone will be noticed quickly.

ABS plastic B – Good
Acetal (Delrin®) C – Fair
Aluminum A – Excellent
Brass B – Good
Bronze B – Good
Buna N (Nitrile) D – Poor
Carbon Steel C – Fair
Cast iron C – Fair
Ceramic A – Excellent
ChemRaz (FFKM) B – Good
Copper A – Excellent
CPVC A – Excellent
EPDM B – Good
Fluorocarbon (FKM) A – Excellent
Hastelloy-C® A – Excellent
HDPE B – Good
Hypalon® A – Excellent
Hytrel® C – Fair
Kalrez A – Excellent
Kel-F® A – Excellent
LDPE C – Fair
Natural rubber D – Poor
Neoprene C – Fair
NORYL® B – Good
Nylon D – Poor
Polycarbonate A – Excellent
Polyetherether Ketone (PEEK) A – Excellent
Polyethylene B – Good
Polypropylene B – Good
Polyurethane A – Excellent
PTFE A – Excellent
PVC B – Good
PVDF (Kynar®) A – Excellent
Silicone A – Excellent
stainless steel – 304 B – Good
stainless steel – 316 A – Excellent
Titanium A – Excellent
Tygon® B – Good
Viton® A – Excellent

More useful information on ozone resistance can be found HERE

We also perform ozone resistance testing in our ozone chambersContact us for information about this service should you have any materials you have specific questions on.

29 thoughts on “Materials ozone resistance chart

  1. Hi, thank you for all the information on your website. It’s excellent.

    In your list of Materials ozone resistance chart. Do you know if ozone has good compatibility with ” Polystyrene ”?

    Only this material that I did not find.

    Thank you so much.

  2. Thank you for providing the material list vs. ozone. May I know if ozone has good compatibility with leather and vinyl?

    Thanks for your help

    1. Ozone in air or water at low levels is fine with both leather and vinyl.
      Ozone in water is fine with both an levels up to 20 ppm
      Ozone in air should be kept below 20 ppm with leather, and 1,000 ppm with vinyl.

  3. Hi, thank you for the information of your list. It’s very useful. May I know exactly what “short-term applications or very low ozone levels” means in C=Fair?
    Thank you so much.

  4. In Italy a fake news is spreading, someone asserts that Ozone is dangerous for electronic components and destroys computers and cards, I am convinced of the inaccuracy of what has been said, and I also did a check on your table, there is some document of some scientific company ? I want to stop this madness.

  5. Hi, thank you for all oft he information. May I ask you, may I use IBC container (it is from PE) for ozonation in drinking water treatment ?

      1. Hi,
        As per your chart,
        for low O3 levels of 0.5 ppm, you have specified HDPE to be good for short term. Here the IBC container would have O3 level of 2 ppm in water…..

  6. Can i use Polypropylene filter bag for Ozone in drinking water treatment which below 1ppm? What material of filter bag is best compatible for this application?

  7. Can I use ozone water with concentration of 1,4mg/l to clean and desinfect taps and sincks mades with nickel plated?

    1. Ozone levels of 1.4 mg/l may not achieve complete disinfectio of surfaces, therefore I am not sure if this will work. I would always suggest ozone levels of 2.0 ppm or greater for disinfection.

      If you are asking specifically about the ability for nickel plating to withstand low ozone levels, the answer is yes, this should be fine. 1.4 ppm ozone in water is low enough it will not harm most any materials.

    1. Only at low ozone concentrations. If using ozone from air at concentrations below 0.5% by weight, this is okay. Anything higher is bad.
      Silicone will not handle the high concentrations of ozone. It will dry out and crack.

    1. Yes, PEX is a polyethelyne material. This is a fine option for ozone in water at low levels. Certainly, the level of ozone in a domestic drinking water system will be well below 2.0 ppm. Therefore, this should work great.

  8. I want to disinfect my wetsuit made of Neoprene with ozone. Neoprene rated at a C level, what level and how long would you recommend.

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