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Is PTFE good for blades?
- Thread starter lorise
- Start date
- Joined
- Jul 30, 2006
- Messages
- 45,415
PTFE, in and of itself, is a lubricant only. It does not protect the blade from corrosion.
What you are applying is a solution containing small PTFE particles. Sometimes the carrier fluid contains corrosion inhibitors, sometimes not. So whether the total gunk protects the blade from corrosion, and if so, to what extent, will vary from product to product.
What you are applying is a solution containing small PTFE particles. Sometimes the carrier fluid contains corrosion inhibitors, sometimes not. So whether the total gunk protects the blade from corrosion, and if so, to what extent, will vary from product to product.
Last edited:
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- Jan 6, 2007
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- 911
To add to Knarfeng's reply, it's used in some production knives. It should aid in corrosion resistance, reduce blade friction in cutting and ease cleaning the blade after use. I've seen it used in outdoors/hunting and kitchen knives.
- Joined
- Jul 30, 2006
- Messages
- 45,415
There are two types of PTFE.
There is the type that is applied as spray or fluid. These are applied by the user.
There's also the type that is baked onto the blade to form a continuous film. These are applied by the OEM.
First post addressed the first type as that seemed to be what you were asking about.
If you are talking about the second type, then yes, TPFE coatings do protect the blade from corrosion by isolating the steel from oxygen and water, both necessary components of the corrosion reaction.
There is the type that is applied as spray or fluid. These are applied by the user.
There's also the type that is baked onto the blade to form a continuous film. These are applied by the OEM.
First post addressed the first type as that seemed to be what you were asking about.
If you are talking about the second type, then yes, TPFE coatings do protect the blade from corrosion by isolating the steel from oxygen and water, both necessary components of the corrosion reaction.
polyetrafluoroethylene... or pretty close... otherwise known as TEFLON... a very long polymer chain material... in fact a very long polymer chain which can be produced in very very thin membranes... it is considered an engineering polymer for it has good qualities such as hardness, low coefficient of friction, resistance to abrasion and high temperature resistance.
it is used to line skillets, (ie: teflon cookware), brake pads, and fabric lining (ie: GORE water repellent jackets)
pretty expensive in bar stock, machines quite well.
can be obtained in a spray can to spray and lubricate hardware of any kind (plastic or metal).
Insofar as it creates a barrier between oxygen and humidity on a blade YES it would protect against oxydation. If the sprayed PTFE is scraped then it no longer protects the steel.
it is used to line skillets, (ie: teflon cookware), brake pads, and fabric lining (ie: GORE water repellent jackets)
pretty expensive in bar stock, machines quite well.
can be obtained in a spray can to spray and lubricate hardware of any kind (plastic or metal).
Insofar as it creates a barrier between oxygen and humidity on a blade YES it would protect against oxydation. If the sprayed PTFE is scraped then it no longer protects the steel.