Introduction
All blades are coated with Polytetrafluoroethylene (PTFE). The edge on an uncoated stainless steel blade is not smooth, it has tiny microscopic pits and crevices which will give a rough shave. PTFE fills in the tiny crevices and makes the shave smoother. The PTFE coating produced by one company, DuPont, has the commercial name Teflon but they are all PTFE with no significant difference between them.
PTFE does not adhere well to metal and can easily washed or wiped off, hence the warning not to wipe a razor blade.
Adding a formulation of platinum, tungsten, chromium, titanium, iridium, etc will help the PTFE adhere to the blade and harden the edge.
Plain stainless blades are still coated with PTFE, but are not listed in the table below for brevity's sake.
PTFE does not adhere well to metal and can easily washed or wiped off, hence the warning not to wipe a razor blade.
Adding a formulation of platinum, tungsten, chromium, titanium, iridium, etc will help the PTFE adhere to the blade and harden the edge.
Plain stainless blades are still coated with PTFE, but are not listed in the table below for brevity's sake.
Coatings and Blades
| Coating Type | Razor Blades | |
| Chromium | Lord Super Chrome, Shark Super Chrome | |
| Iridium | Polsilver Super Iridium, Wizamet Super Iridium | |
| Platinum | Astra Superior Platinum (Greens), Feather Hi-Stainless, Gillette Platinum, Gillette Rubie, Merkur Super Platinum | |
| Platinum Chrome | BIC Chrome Platinum, Dorco Platinum Chrome ST-301, Derby Extra, Personna 74 |
References
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