GlockTalk.com
Home Forums Classifieds Blogs Today's Posts Search Social Groups



  
SIGN-UP
Notices

Glock Talk
Welcome To The Glock Talk Forums.
Reply
 
Thread Tools Display Modes
Old 06-30-2013, 20:43   #1
DannyR
Moderator
 
DannyR's Avatar
 
Join Date: Dec 1998
Location: Roanoke, Virginia
Posts: 38,248
The Glock Slide Finish

What you see is not the old tennifer or new metal hardening process. It is the black phosphate coating. Tennifer and it's new EPA approved replacement is impregnated into the steel and is colorless. The black finish is applied on top of it, and does not effect the corrosion resistance of the slide, which still has a Rockwell harness of around 68--much harder than stainless steel, which I think is around 54.

Final slide finishes have varied over the years, and I cannot explain that. I've always liked the flat black of the 90's best.
__________________
Lifetime GSSF Member
Certified Glock Armorer 1997-2015
NROI, Level I
Bull Dawg #1
www.gssfonline.com
https://sites.google.com/site/dannyvickieryan
DannyR is offline   Reply With Quote
Old 07-01-2013, 15:07   #2
tango44
Senior Member
 
tango44's Avatar
 
Join Date: Jun 2005
Location: Miami Florida
Posts: 5,242
Love the shinny slide on my G19 with Austrian proof marks.
General Glocking
tango44 is offline   Reply With Quote
Old 07-01-2013, 15:39   #3
clarkz71
Senior Member
 
clarkz71's Avatar
 
Join Date: Aug 2012
Location: South Florida
Posts: 1,606
Quote:
Originally Posted by tango44 View Post
Love the shinny slide on my G19 with Austrian proof marks.
My 2012 G23 has that finish, not a mark on it after a year of carry.
__________________
Quote:
Originally Posted by Bill Lumberg View Post
Real Men of Genius....Here's to you, Mister self proclaimed-genius-surrounded by idiots!
.
G23 gen3 .40/.357 Sig
Florida Glocker #1923
clarkz71 is online now   Reply With Quote
Old 07-01-2013, 15:46   #4
tango44
Senior Member
 
tango44's Avatar
 
Join Date: Jun 2005
Location: Miami Florida
Posts: 5,242
Quote:
Originally Posted by clarkz71 View Post
My 2012 G23 has that finish, not a mark on it after a year of carry.
That's why I love it, no marks at all after all the beating!
tango44 is offline   Reply With Quote
Old 07-01-2013, 15:50   #5
SJ 40
Senior Member
 
SJ 40's Avatar
 
Join Date: Jan 2011
Location: Vermont
Posts: 6,420
Quote:
Originally Posted by DannyR View Post
What you see is not the old tennifer or new metal hardening process. It is the black phosphate coating. Tennifer and it's new EPA approved replacement is impregnated into the steel and is colorless. The black finish is applied on top of it, and does not effect the corrosion resistance of the slide, which still has a Rockwell harness of around 68--much harder than stainless steel, which I think is around 54.

Final slide finishes have varied over the years, and I cannot explain that. I've always liked the flat black of the 90's best.
This needs to be posted as a Sticky,perhaps folks would finally get it,naw that's asking to much of people to read and understand it. SJ 40

Last edited by SJ 40; 07-01-2013 at 16:03.. Reason: eta
SJ 40 is offline   Reply With Quote
Old 07-01-2013, 15:55   #6
tango44
Senior Member
 
tango44's Avatar
 
Join Date: Jun 2005
Location: Miami Florida
Posts: 5,242
+1 make it sticky!
tango44 is offline   Reply With Quote
Old 07-01-2013, 17:25   #7
stolenphot0
RTF2 Addict
 
stolenphot0's Avatar
 
Join Date: Jan 2012
Location: Kettering, OH
Posts: 4,965
Quote:
Originally Posted by SJ 40 View Post
This needs to be posted as a Sticky,perhaps folks would finally get it,naw that's asking to much of people to read and understand it. SJ 40
Quote:
Originally Posted by tango44 View Post
+1 make it sticky!
Stick it
__________________
--
Want to help my wife win a new mobility van?
Click here to vote

stolenphot0 is offline   Reply With Quote
Old 07-01-2013, 18:19   #8
Magus
Deo Vindice
 
Magus's Avatar
 
Join Date: Jan 2009
Location: The Commonwealth of VA
Posts: 1,112
Sticky needed for sure.

But yeah, the dull black coating of the 90's I liked best. The most recent coating seems the closest they've come to that in a while.

The glossy black I hated. Found it to be too slick in certain scenarios.
Magus is offline   Reply With Quote
Old 07-01-2013, 18:25   #9
man.cave
Senior Member
 
Join Date: Mar 2012
Location: NC
Posts: 586
Quote:
Originally Posted by Magus View Post
Sticky needed for sure.

B
The glossy black I hated. Found it to be too slick in certain scenarios.
I will give you that about it being a little slick at times, but man that finish is tough
man.cave is offline   Reply With Quote
Old 07-02-2013, 01:47   #10
lupuss
Member
 
Join Date: Aug 2009
Posts: 91
The new slide finish is not a kind of phosphate finish. Since Glock began to use plasma gas nitriding surface treatment instead of salt bath ferritic nitrocarburization ( Tenifer ), no additional surface treatment or finish is applied on the slides after the surface treatment process. At a certain degree of heat during the plasma gas nitriding process, the metal itself gets oxidised and darkened. The new Glock slides are surface hardened and oxidised at just one step, instead of two steps of surface treatment and epoxy baked on finish that was used to be...This is why the dark dull black colored surface of the newer slides get scracthed easily.

By the way, while Glock claims that the newer surface treatment is much more rust resistant, or at least as rust resistant as it was used to be, it is exactly false, the new slides get rusted easily.

I do realy want the two steps of surface treatment and baked on finish of the Glock back....

Best.

Last edited by lupuss; 07-02-2013 at 01:55..
lupuss is offline   Reply With Quote
Old 07-02-2013, 10:06   #11
Audiman77
Senior Member
 
Audiman77's Avatar
 
Join Date: Jul 2012
Location: Baltimore MD
Posts: 189
Quote:
Originally Posted by lupuss View Post
The new slide finish is not a kind of phosphate finish. Since Glock began to use plasma gas nitriding surface treatment instead of salt bath ferritic nitrocarburization ( Tenifer ), no additional surface treatment or finish is applied on the slides after the surface treatment process. At a certain degree of heat during the plasma gas nitriding process, the metal itself gets oxidised and darkened. The new Glock slides are surface hardened and oxidised at just one step, instead of two steps of surface treatment and epoxy baked on finish that was used to be...This is why the dark dull black colored surface of the newer slides get scracthed easily.

By the way, while Glock claims that the newer surface treatment is much more rust resistant, or at least as rust resistant as it was used to be, it is exactly false, the new slides get rusted easily.

I do realy want the two steps of surface treatment and baked on finish of the Glock back....

Best.
This^^^ exactly why my avatar pics are my only gen 4 guns that have been nickel boron coated. My older gen 3's look fantastic after carrying everyday.
Audiman77 is offline   Reply With Quote
Old 07-02-2013, 10:56   #12
man.cave
Senior Member
 
Join Date: Mar 2012
Location: NC
Posts: 586
I am all confused about finishes now. My older glocks have the dull flat finish "Tenifer treated", and my new have the Teflon looking finish (not flat, not easy to scratch). My barrels after 3k rounds hardly show any sign of chatter or slide. So little that you would have to hold and inspect it, it wouldn't show in a picture. I really like the Teflon finish minus the slickness at time. I can scratch my finger nail in the side until I have no finger nail, there wouldn't be a mark on it.

Last edited by man.cave; 07-02-2013 at 10:57..
man.cave is offline   Reply With Quote
Old 07-02-2013, 11:15   #13
Audiman77
Senior Member
 
Audiman77's Avatar
 
Join Date: Jul 2012
Location: Baltimore MD
Posts: 189
Quote:
Originally Posted by man.cave View Post
I am all confused about finishes now. My older glocks have the dull flat finish "Tenifer treated", and my new have the Teflon looking finish (not flat, not easy to scratch). My barrels after 3k rounds hardly show any sign of chatter or slide. So little that you would have to hold and inspect it, it wouldn't show in a picture. I really like the Teflon finish minus the slickness at time. I can scratch my finger nail in the side until I have no finger nail, there wouldn't be a mark on it.
They were all tennifer treated until recently. The tennifer was under the black. The older Teflon finish was the best IMO. But some like the dull flat. Matter of personal opinion.
Audiman77 is offline   Reply With Quote
Old 07-02-2013, 14:05   #14
fuzzy03cls
Senior Member
 
Join Date: Jan 2010
Location: Florida
Posts: 2,744
Whatever dull gray finish is on my 10 gen 4 G22 is a POS. Thing looks horrible, nicks, scratches, worn spots. My 06 G17 & 09 G27 looks brand new. My newer 12 gen 4 G22 has held up much better though. It's that shiny finish.
fuzzy03cls is offline   Reply With Quote
Old 07-02-2013, 14:27   #15
Leigh
Senior Member
 
Join Date: May 2000
Location: Eastern Kentucky
Posts: 5,357


Having owned them (all Austrian and purchased NIB) since the early 90's, and early to mid 2000's I have seen a variety of factory finishes.

First model 19 from 1991 had a very rough, almost "parkerized" finsh. It sucked up CLP like a sponge, showed all minor scratches and holster wear BUT 1000% resistant to corrosion.

Next came a Gen 2 23 (maybe 1998-99) with more of a Beretta "Bruniton" feel and look. Pretty slick but sometimes looked unevenly applied (depending on the angle/lighting).

Mid 2005 model 21 that was not as shiny but has showed zero scratches after MANY presentations.
Leigh is offline   Reply With Quote
Old 07-02-2013, 16:30   #16
man.cave
Senior Member
 
Join Date: Mar 2012
Location: NC
Posts: 586
Quote:
Originally Posted by fuzzy03cls View Post
Whatever dull gray finish is on my 10 gen 4 G22 is a POS. Thing looks horrible, nicks, scratches, worn spots. My 06 G17 & 09 G27 looks brand new. My newer 12 gen 4 G22 has held up much better though. It's that shiny finish.
Ok I don't guess the new flat finish has made it my way yet. I was in a LGS today and they where all still the Teflon glossy finish (which I really like).

My vote is for the Teflon like finish (btw I know it has nothing to do with Teflon, it is just the easiest way to describe it)

Last edited by man.cave; 07-02-2013 at 16:31..
man.cave is offline   Reply With Quote
Old 07-02-2013, 20:46   #17
Sgt127
Senior Member
 
Sgt127's Avatar
 
Join Date: Nov 2002
Location: Texas
Posts: 3,259
I was issued a new G22 Gen4 about a year and a half ago. It has a semi shiny finish. It looks like its finely pitted underneath, but smooth. Awful finish. It's got bare steel showing on several places.

I have a 13 year old G35 that was previous issue with the older grey parkerized looking finish that held up remarkably for the 10 plus years I carried it.
Sgt127 is offline   Reply With Quote
Old 07-02-2013, 23:17   #18
crazymoose
Nonentity
 
crazymoose's Avatar
 
Join Date: Feb 2005
Posts: 6,075
Quote:
Originally Posted by lupuss View Post
By the way, while Glock claims that the newer surface treatment is much more rust resistant, or at least as rust resistant as it was used to be, it is exactly false, the new slides get rusted easily.

I do realy want the two steps of surface treatment and baked on finish of the Glock back....

Best.
I agree. I had a 4th gen G34 start to rust. First I'd ever experienced that with a Glock. The gun was oiled and stored in a foam-lined case (a huge no-no for most guns, but I figured that this Glock, like all the others I've owned, was almost impervious to rust). Lo and behold, in a couple of weeks, the slide had several small orange rust spots, and numerous dark splotches indicating the beginning of corrosion under parkerizing.
__________________
Do not mistake precedent for justification.

Doubt is an unpleasant condition, but certainty is absurd. Voltaire

Last edited by crazymoose; 07-02-2013 at 23:24..
crazymoose is offline   Reply With Quote
Old 07-02-2013, 23:19   #19
crazymoose
Nonentity
 
crazymoose's Avatar
 
Join Date: Feb 2005
Posts: 6,075
Quote:
Originally Posted by Audiman77 View Post
They were all tennifer treated until recently. The tennifer was under the black. The older Teflon finish was the best IMO. But some like the dull flat. Matter of personal opinion.
The Teflon (or epoxy, whatever it was) certainly looked the best and was most durable. Functionally, however, I found the rough oxide on the early guns to be the best, as it added extra purchase when grasping the slide.
__________________
Do not mistake precedent for justification.

Doubt is an unpleasant condition, but certainty is absurd. Voltaire
crazymoose is offline   Reply With Quote
Old 07-02-2013, 23:24   #20
kirgi08
Silver Membership
Watcher.
 
kirgi08's Avatar
 
Join Date: Jun 2007
Location: Acme proving grounds.
Posts: 26,745
Blog Entries: 1


Quote:
Originally Posted by DannyR View Post
What you see is not the old tennifer or new metal hardening process. It is the black phosphate coating. Tennifer and it's new EPA approved replacement is impregnated into the steel and is colorless. The black finish is applied on top of it, and does not effect the corrosion resistance of the slide, which still has a Rockwell harness of around 68--much harder than stainless steel, which I think is around 54.

Final slide finishes have varied over the years, and I cannot explain that. I've always liked the flat black of the 90's best.


All my Glocks are gen3 or earlier.'08.
__________________
I'd rather be judged by 12 than carried by 6

If you look like food,You will be eaten.

Rip Chad.You will be missed.
kirgi08 is offline   Reply With Quote
Old 07-03-2013, 05:56   #21
Bill Lumberg
BTF Inventor
 
Bill Lumberg's Avatar
 
Join Date: Jun 2002
Posts: 6,878
The later finish is no more prone to corrosion than the old. It used to be an FI gimmick for shock effect to sharpen a knife blade on the old flat black slides. Not so much with the shiny ones.
Quote:
Originally Posted by lupuss View Post
The new slide finish is not a kind of phosphate finish. Since Glock began to use plasma gas nitriding surface treatment instead of salt bath ferritic nitrocarburization ( Tenifer ), no additional surface treatment or finish is applied on the slides after the surface treatment process. At a certain degree of heat during the plasma gas nitriding process, the metal itself gets oxidised and darkened. The new Glock slides are surface hardened and oxidised at just one step, instead of two steps of surface treatment and epoxy baked on finish that was used to be...This is why the dark dull black colored surface of the newer slides get scracthed easily.

By the way, while Glock claims that the newer surface treatment is much more rust resistant, or at least as rust resistant as it was used to be, it is exactly false, the new slides get rusted easily.

I do realy want the two steps of surface treatment and baked on finish of the Glock back....

Best.
__________________
Did someone talk to you about your TPS reports?

Last edited by Bill Lumberg; 07-03-2013 at 06:04..
Bill Lumberg is offline   Reply With Quote
Old 07-03-2013, 07:17   #22
ShallNotBeInfringed
NRA Business Al
 
ShallNotBeInfringed's Avatar
 
Join Date: Feb 2013
Location: NRA Benefactor Life Member Nebraska
Posts: 1,238
I have a gen 2 G20 that is 20 years old. Gun still looks like it did 20 years ago. Has a army surplus color to it, kinda. No signs of rust, dings, scratches, looks new yet.

Yesterday I purchased a gen 3 G20 that was manufactured in 12 or 10, don't remember. It still has the factory packing grease, cooper color, on the slide, sold as a used gun, never fired except two factory rounds.

The finish on this gun, looks awesome. Tefflon esk is one way to describe it. Almost like miniature black diamonds are affixed to the surface. Very slippery. Even the plastic frame is slick, and shines.

Very much hope this finish holds up twenty years of abuse as well as my old Glock has.

Turning my old Glock into a classroom training tool, with removed firing pin, orange dummy ammo, orange mag end plate, and orange slide end cap. Ordered orange ruff decal grips. Will order a replacement barrel, that I will drill a hole through on two sides of the chamber, to show the orange dummy round in the chamber. Will be an extended barrel, that I will powder coat a threaded tip orange.



Sent from my VS950 4G using Ohub Campfire mobile app
__________________
19 21 Cutaways 19 19C 20 20SF 21 21C 23 23C 32 32C 22LR 460 Glock Armorer
Nebraska Concealed Carry Instructor, 32 years CC Experience1981-2013 Retired FFL1991-2001
NRA Benefactor Life NRA CRSO NRA instructor RSOi CPi PPITHi PPOTHi RTBAVi
ShallNotBeInfringed is offline   Reply With Quote
Old 07-06-2013, 16:44   #23
Zero808
Registered User
 
Zero808's Avatar
 
Join Date: Mar 2013
Posts: 17
I rather have the "teflon" looking finish! It is MORE DURABLE and less prone to scratches! My 19 & 21 both 4 Gen and test fired in 2013 have that new crap finish! Both slides were damaged right out of the box and has been sent back to Glock for refinish! My 19 was just "touched up" by Glock. Pisses me off knowing that they did not resolve my issue. The cost for me to ship it back to Glock for another refinish from Hawaii is not worth it. Just sent my slide to a local vendor for Cerakoting.
Zero808 is offline   Reply With Quote
Old 07-06-2013, 18:07   #24
man.cave
Senior Member
 
Join Date: Mar 2012
Location: NC
Posts: 586
How long did the "Teflon" finishes make production.
man.cave is offline   Reply With Quote
Old 07-06-2013, 20:06   #25
spec357
Senior Member
 
Join Date: Jan 2012
Location: Pa.
Posts: 139
I don't like this new coating on my gen4 g19...It always looks blotchy and dull looking after coming out of the holster. I had a gen3 g23 that I brought in like 2005 and that had a nice finish on it....real dark and slippery feeling I guess that was the teflon coating...lol...They should have stayed with that finish.
spec357 is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump




All times are GMT -6. The time now is 03:46.



Homepage
FAQ
Forums
Calendar
Advertise
Gallery
GT Wiki
GT Blogs
Social Groups
Classifieds


Users Currently Online: 754
195 Members
559 Guests

Most users ever online: 2,244
Nov 11, 2013 at 11:42