Tennifer

A

AC

New member
Just what is tennifer and why doesn't everyone offer it, not just Glock? I assume it is patented? Anyone know when the patents run out?
 
AC; Glock was the first and only manufacturer
(that I know of) that offer's the highly touted Tennifer finish on their handguns. :D
Not sure of the patent expiration date; if there is one? :)

Regards,
Ala Dan, Life Member N.R.A.
 
Tennifer plating uses a great deal of cyanide in the process. Due to enviroemtal reasons, cyanide is no longer allowed to be used in the US, so no US made gun can have thais type of finish. Eventually Glock will probably have to figure out a different method of finish, because the European Union is looking at doing away with cyanide as well.
Eric

------------------
Formerly Puddle Pirate.
Teach a kid to shoot.
It annoys the antis.
 
My P99 .40 has a tennifer finish, so it is not only Glock. The salesman at the store told me that I had one of the last (on hand) German made p99's. I guess the S&W version must onlyt be blued.
 
Although I do not own a glock or particulary like them -I will admit they have the best finish of any handgun out there-it is brutally tuff!!!!!!!!!!!!
 
I was always under the impression that tenifer is not a finish, but rather a hardening process used in manufacturing the steel.
 
It is a finish if you consider it is just a thin layer for the sake of durability an protection, but it isn't a cosmetic finish, such as Glock's black phosphate.
 
My understanding is that Tenifer is a metal treatment process; nitride bath at like 500 degrees C I think. It creates a colorless layer 3/1000th inch deep, and is a 69 out of 70 on the Rockwell scale of hardness.

I think S&W has this as well. I know the Steyrs have a tenifer finish on it.

The black stuff on the Glocks is not the tenifer, the tenifer process is colorless. The coating on the Glock slides is probably Teflon-variant of some kind...

I will have to go dig up the Glock propaganda now...

Albert
 
Here's a post I found on the topic from another board... I don't know if it's true, but the guy seems to know what he's talking about..

~~~~~~~~~~~~

The process of Tennifer was initially developed by Degussa of Germany, and was a derivitive of the Tufftride process (also by Degussa). The process was developed to compete with the ICI (UK) process
called Sulfinuz. Degussa applied for a licence to ICI and were turned down. The Sulfinuz was a 3 component ferritic nitro carburise process which developd carbides, nitrides and sulphides in the steel surface.
The Tufftride/Tenifer is a 2 component process that they developed producing carbids and nitrides in the steel surface. ICI ( Cassell Div. who made the Sulfinuz) was sold off in 1976 or 77 to Degussa. The
problem with ther process is that it requires frequent regeneration. This is simply done by raising the bath temperature up to about 1250f an vigorously aereating the bath with a steel air ring in the bottom of the
bath. This because it is susceptable to oxide contamination originating from baskets and wire. At one time, the bath HADto be made from titanium, then it went to a titanium lined pot. Hope that this helps you.
 
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