Ozone resistance of various materials

Ozone resistance of various materials

Ozone is a very aggressive gas, only few materials are ozone resistant. Besides that, it also matters whether it considers ozone in the gaseous phase or ozone dissolved in water. Below, you’ll find a list with the ozone resistance of various materials. The table assumes the materials are subjected to high concentrations.

Ozone in the gaseous phase Ozone dissolved in water
Material Resistance Material Resistance
ABS Good ABS Average
Acrylate (Lucite) Good Acrylate (Lucite) Perfect
Aluminium Good (dry ozone) Aluminium Bad
EPDM Good EPDM Average
Galvanized iron Average Galvanized iron Bad
Cast iron Average Cast iron Average
Glass Perfect Glass Perfect
Hastelloy-C ® Perfect Hastelloy-C ® Perfect
HDPE Average HDPE Average
LDPE Bad LDPE Bad
Monel Bad Monel Bad
Natural rubber Bad Natural rubber Bad
Nylon bad Nylon Bad
Polycarbonate Perfect Polycarbonate Perfect
PTFE Perfect PTFE Perfect
PVC-C Good (turns brittle over time) PVC-C Perfect
PVC-U Good (turns brittle over time) PVC-U Perfect
PVDF Perfect PVDF Perfect
RVS 304 Perfect RVS 304 Perfect
RVS 316 Perfect RVS 316 Perfect
Silicone Perfect Silicone Perfect
Titanium Perfect Titanium Perfect
Viton Perfect Viton Perfect
Perfect Ozone doesn’t damage these materials
Good Ozone barely damages these materials (exposure to very high ozone concentrations isn’t recommended)
Average Ozone damages these materials within a couple weeks
Bad Ozone damages these materials almost immediately (within days and sometimes hours)

© Tol Watertechniek