why not remove BT2 coating???

C

curious2003

Joined
Apr 20, 2003
Messages
220
Ok from what I gather BT2 coating on BMs will supposedly still protect the blade from rust/corrosion even AFTER it flakes/chips off. This would mean the black color has nothing to do with the protective qualities.

Hence, I am at a loss as to why people hate the coating and refuse to buy coated blades from BM when theoretically the coating can be completely REMOVEABLE and will still offer protection for the steel.

Can anybody clarify this for me?
 
Ok from what I gather BT2 coating on BMs will supposedly still protect the blade from rust/corrosion even AFTER it flakes/chips off. This would mean the black color has nothing to do with the protective qualities.
Click to expand...

From my experiences, the black coating will not actually flake or chip off. It will eventually "wear" or scratch off. The black "color" coating, is the actually preventive treatment and from my understanding, if you remove the black "color" you HAVE removed the protection from corrosion

(Edited to add) Everyone I know that has actually stripped the coating off and applied a hand rubbed satin finish or likewise, has complained of problems with rust.
 
Acoarding to Benchmade,the colour has little to do with the protective purposes to the blade. It´s just a colour. It could just as well has the colour of grey,golden or anything else you can think of. The coating itself is Titanium aluminium nitride,and it´s going fare deeper beneath the colour,down in the pores of the steel.

The colour,usually black,is there to prevent reflexes from sun and light on knives mostly used for combat purposes,when reflexes can give the user away. The black coating is also,in my own opinion the goodest looking coating colour on knives. But when the colour wears of,you still have a invisible coating in the steel pores. At least,that´s how i have understood it,by reading Benchmades catalog..

Manowar
 
Manowar, I understand that it could be any color and black was just the color chosen, but if you removed the black coating, wouldn't you also be removing the protection that was meant for that non stainless blade?? I am not contradicting you, just trying to understand myself. Thanks
 
Well i agre with you TheBadGuy that it sounds contradicting,but the Titanium coating goes deeper than just the black surface,acoarding to BM.For me to,it sounds unlogicaly that is should still protect the blade eaven when the black colour is gone,but aparantly it is.It is deeper,so it goes down all the way in the pores,beneath the colour.I don´t have any Titanium coated blade,so i don´t know if it works practically.

Manowar
 
Isn't BT-2 Benchmades version of W.D. Birdsongs Black-T?

Those coatings aren't Titanium nitride, but Teflon based.

TiN and TiCN coatings hold up much better than BT-2, and are damn near impossible to scratch.

I deal with machine tools (end mills, taps, drills, ect) that are TiN and TiCN coated, and I have yet to see those coatings damaged during machining.
 
I got rid of my combat tupperware some time back ( couldn't adjust to the capgun sproing of the trigger ) - but the coating given the Glock protects from rusting even when apparently gone.

Of course it cannot be applied over here due to environmental laws.
 
normal wear ('scratches, removed 'color') will not destroy the protection. removal with sandpaper for example will also destroy the protection, hence removing the coating wouldn't be such a smart idea.

cheez
 
Curious there's a thread intiated by me which I feel obliged to post back to before any, but even so I'm going to respond to this and another because I do have a fair amount of empathy in connection with at least some of your thought processes. I need more time with the other anyway.

So:

The answer to this question is one of DEGREE. If you were to bead blast, sandpaper or whatever a BT2 coating, it is very likely you are going to experience rust on the blade, rather quickly. But you would be stripping the blade, in those instances. It is quite a different scenario though with wear resulting from typical use - essentially, there wont be a problem. As Manowar indicates, there is a bonding 'deeper' than you see. Typical wear wont alter that. Not for a long time, at any rate.

But uncoated M2, well that would be a worry. No doubt some will say they can cope, but I certainly wouldn't want to try that myself.
 
I love the Limited Edition 710, I have been looking for one since I saw it in BM's catalog. Great knives. I wish Bodycote would start taking personal orders again. I have e-mailed them with no luck :(
 
You must log in or register to reply here.
Back
Top