Blade Coating

65535

65535

Joined
Mar 14, 2007
Messages
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After attacking some dead tree with my 156BT I noticed that the coating is worn and scratched a bit, I figure this is normal wear, as steel is rather non stick, and nothing stays put forever. Curious if anyone else finds that their knifes with coating wear fast?
 
65535 said:
After attacking some dead tree with my 156BT I noticed that the coating is worn and scratched a bit, I figure this is normal wear, as steel is rather non stick, and nothing stays put forever. Curious if anyone else finds that their knifes with coating wear fast?
Click to expand...

They certainly get some wear marks, but the blades I have with coatings are to be used, so I don't care. Actually, I think a coated blade with some of the coating worn off is sexy..;)
 
Xylan is a thermoset coating based on a Teflon type material. Has a low coefficient of friction and is quite water proof. Should be longer lasting than epoxy.

I would expect it to be more easily scratched through than the chemical vapor deposition materials or black oxide coatings.

Perhaps some of our compadres who have different coatings could tell us what coatings they have and how long they last.

I'll start. I had (maybe have if I can find it in the garage) an old parkerized carbon steel bolo machete that has seen some tough work and the coating was still there the last time I saw the blade. (Darn it! gotta clean out that garage.)

BTW welcome aboard Tomboygal55
 
all coatings will scuff/scratch with use, thats just a fact of life. i have scuffed up BM, EKI, MT, spydie, ER, MOD, etc.

most still protect the metal though even when scratched/scuffed.

some folks think the scuffs/scratches add "character" etc, some folks think it simply looks like crap.

i prefer satin finish FWIW, on most knives anyway.
 
I agree that all coatings scratch to one degree or another. I believe that some coatings last longer than others.

I am quite willing to have my belief proved wrong.
 
Good coating:

DLC - diamond like coating - amorphous carbon, diamond is crystal carbon
Tungsten - tungsten carbide cating (?)
TiN - titanium nitrid
TiAlN - titanium aluminium nitrid
BC - boron carbide

Theoretically they may scratch out, by glass or something, but on practice it is only sharpening scratching it out if you are not accurate.

Everything else: teflon based, epoxi based etc is just to cover up the fact that manufacturer don't want to polish blade properly or apply some camo-painting. That coating make no value but instead turn blade to pretty ugly look after minimal use. And I prefer not to make food with this kind of coatings. Some of them may be acceptable, but in general I rather avoid it if possible. Except may be Busse, Microtech, SwampRat and Fehrman - their coating not too bad.

Thanks, Vassili.
 
DLC is actually softest among others, but it is still very hard. BC is hardest, but not in use any more.

Thanks, Vassili.
 
IMHO one of the best and most wear resistant coatings is a TiCN coating, pure black and extremely durable, only time I ever wore it off was when it hit some rocks buried into dirt I stabbed my blade into.
 
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