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