Ozone FAQ

Ozone FAQ

Ozone Resistant Materials

The chart below shows various materials resistance to ozone oxidation.  This chart should be used as a reference only.  Some materials will be affected by ozone differently in wet, or dry conditions.  Also, materials will react differently with higher or lower ozone concentrations.  If you have questions about the materials used in your application, contact us, we would be glad to help. 

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 plasticB – Good
Acetal (Delrin®)C – Fair
AluminumA – Excellent
BrassB – Good
BronzeB – Good
Buna N (Nitrile)D – Poor
Carbon SteelC – Fair
Cast ironC – Fair
CeramicA – Excellent
ChemRaz (FFKM)B – Good
CopperA – Excellent
CPVCA – Excellent
EPDMB – Good
Fluorocarbon (FKM)A – Excellent
Hastelloy-C®A – Excellent
HDPEB – Good
Hypalon®A – Excellent
Hytrel®C – Fair
KalrezA – Excellent
Kel-F®A – Excellent
LDPEC – Fair
Natural rubberD – Poor
NeopreneC – Fair
NORYL®B – Good
NylonD – Poor
PolycarbonateA – Excellent
Polyetherether Ketone (PEEK)A – Excellent
PolyethyleneB – Good
PolypropyleneB – Good
PolyurethaneA – Excellent
PTFEA – Excellent
PVCB – Good
PVDF (Kynar®)A – Excellent
SiliconeA – Excellent
stainless steel – 304B – Good
stainless steel – 316A – Excellent
TitaniumA – Excellent
Tygon®B – Good
Viton®A – Excellent

The Basics

  • Ozone is highly corrosive, poor quality materials will cause ozone leaks
  • Materials will react differently to “Wet” and “Dry” ozone
  • Ozone concentrations will affect material compatibility
  • Many times, the best method to determine compatibility is to perform your own testing