Holley Throttle Disc Coating
Burning Brakes
Joined: Jul 2016
Posts: 767
Likes: 74
From: Blaine MN
I'm not sure that the answer given is correct, but most often that coating is used for firearms (no offense intended to MelWff). You can go to calvan.com and look at the parkerizing kits, I haven't used them but they have been mentioned as a good kit supplier for people building 80% 1911 Pistols.
Burning Brakes
Joined: Jul 2016
Posts: 767
Likes: 74
From: Blaine MN
I should also mention that some of my Holley Throttle Blades seem to be Parkerized and some appear to be Blued (as in Gun Blueing)
(I'm a bit of a Hoarder when it comes to Holley Carbs/parts, I've acquired about a dozen or so of various ages)
(I'm a bit of a Hoarder when it comes to Holley Carbs/parts, I've acquired about a dozen or so of various ages)
Thread Starter
Le Mans Master
Joined: Apr 1999
Posts: 6,134
Likes: 46
From: Raleigh North Carolina
The ones I am trying to save are the dark blue steel design.
Dupont metal prep #5717S is a zinc phosphate product that I have used, but not for carb discs.
Burning Brakes
Joined: Jul 2016
Posts: 767
Likes: 74
From: Blaine MN
Sounds like you need to get a blueing kit, I have used a couple of brands over the years for Rifle/Pistol refinishing (cold blueing only, liquid). I got really nice results on a Gerber Knife using Birchwood Casey paste type (best ever for me, but not practical for a full firearm re-blue). I can't remember what the other Brand was for liquid, it didn't perform any better than the the B/C liquid.
Last edited by suprspooky; Jan 18, 2019 at 06:42 PM.
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Thread Starter
Le Mans Master
Joined: Apr 1999
Posts: 6,134
Likes: 46
From: Raleigh North Carolina
listen to this video at about 30 seconds to hear what the coating is
https://www.youtube.com/watch?v=PNRBj3MUixg
https://www.youtube.com/watch?v=PNRBj3MUixg
Thread Starter
Le Mans Master
Joined: Apr 1999
Posts: 6,134
Likes: 46
From: Raleigh North Carolina
Burning Brakes
Joined: Jul 2016
Posts: 767
Likes: 74
From: Blaine MN