Recent Topics
Margarita with Diet Squirt
by Duffyjr
22 minutes 57 seconds ago
Mobil 1 5w40 TDT 3 vehicles
by Sw296inchblue
Today at 05:03 AM
Cheap brake fluid tester working properly?
by LucasDK
Today at 04:00 AM
Help finding specific oil.
by Mickxalix
Today at 02:28 AM
Found at Walmart: STP Multipurpose Motor Treatment $1.50
by MrQuackers
Today at 01:36 AM
Mobil 1 5w50 now FS too
by BobFout
Yesterday at 11:55 PM
Front brakes for 1991 GMC Sierra 2500
by sr17
Yesterday at 11:35 PM
7200 Miles
by Yup
Yesterday at 11:08 PM
Result; 5 additives tested in a lab
by DrAdmin
Yesterday at 09:25 PM
What are advantages of rotation ?
by HTSS_TR
Yesterday at 09:22 PM
Arthritic joints
by Eddie
Yesterday at 08:55 PM
Trouble Installing Filter
by Astro_Guy
Yesterday at 08:09 PM
Newest Members
troutwest66, AIRJAC3, bpete65, LEVY, Timmytimmy
58000 Registered Users
Who's Online
46 registered (Al, 94astro, Bandito440, AirgunSavant, Astro14, A310, 3 invisible), 884 Guests and 316 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
58000 Members
66 Forums
249512 Topics
4084516 Posts

Max Online: 2862 @ 07/07/14 03:10 PM
Donate to BITOG
Topic Options
#3148811 - 10/08/13 06:03 AM need something to dissolve rust flecks on rawsteel
dwcopple Offline


Registered: 10/11/04
Posts: 3603
Loc: Michigan
I have a machined piece of steel "in the white" that has some small rust flecks over it. I tried mineral spirits and 0000 steel wool and it just lightened it a bit. what should I use?
_________________________
2015 Chevrolet Silverado All-Star edition 4.3 Ecotec3 V6
2011 Chrysler 200 Limited 3.6L V6

Top
#3148814 - 10/08/13 06:08 AM Re: need something to dissolve rust flecks on rawsteel [Re: dwcopple]
Jay1981 Offline


Registered: 10/06/12
Posts: 128
Loc: Michigan
I've used vinegar to soak tools with rust on them. It works well but then they need a light coat of oil or they rust again.
_________________________
Formerly "T4R"
2007 Chrysler T&C Touring, 98k
2010 Ford F-150 STX, 76k

Top
#3148825 - 10/08/13 06:27 AM Re: need something to dissolve rust flecks on rawsteel [Re: dwcopple]
Phishin Offline


Registered: 05/01/12
Posts: 2032
Loc: Indiana
Vinegar works well. And yes, oil or prime/paint immediately....acid will activate the metal to quickly rust again.
_________________________
2010 Accord-LX K24: PU 5w30
2009 Subaru Forester 2.5X: M1 TDT
1990 Chevy K1500 350TBI: Frankenbrew
2008 Ruckus 50ccGET: M1R Mix

Top
#3148895 - 10/08/13 08:05 AM Re: need something to dissolve rust flecks on rawsteel [Re: dwcopple]
nitehawk55 Offline


Registered: 04/01/10
Posts: 1078
Loc: Ontario , Canada
phosphoric acid
_________________________
05 Ford Five Hundred AWD 3.0 DOHC V6 CVT tranny

Top
#3148951 - 10/08/13 09:14 AM Re: need something to dissolve rust flecks on rawsteel [Re: nitehawk55]
SatinSilver Offline


Registered: 01/24/08
Posts: 4520
Loc: Ohio
_________________________
2012 Toyota Camry 62k miles- PP 0w20, oem filter (TGMO all prior)
2005 Toyota Matrix 103k miles- MC 0w20 syn-blend, MC filter

Top
#3148953 - 10/08/13 09:18 AM Re: need something to dissolve rust flecks on rawsteel [Re: dwcopple]
JHZR2 Offline



Registered: 12/14/02
Posts: 37994
Loc: New Jersey
Naval Jelly?

Top
#3148961 - 10/08/13 09:26 AM Re: need something to dissolve rust flecks on rawsteel [Re: nitehawk55]
Phishin Offline


Registered: 05/01/12
Posts: 2032
Loc: Indiana
Originally Posted By: nitehawk55
phosphoric acid


Regular Coca Cola.
_________________________
2010 Accord-LX K24: PU 5w30
2009 Subaru Forester 2.5X: M1 TDT
1990 Chevy K1500 350TBI: Frankenbrew
2008 Ruckus 50ccGET: M1R Mix

Top
#3148962 - 10/08/13 09:27 AM Re: need something to dissolve rust flecks on rawsteel [Re: JHZR2]
dparm Offline


Registered: 04/19/10
Posts: 13005
Loc: Chicago, IL
Originally Posted By: JHZR2
Naval Jelly?



Bingo. You need to neutralize the rust, but you must paint over it immediately or the rust will just come back.
_________________________
2011 BMW M3 sedan ZCP

Top
#3148965 - 10/08/13 09:38 AM Re: need something to dissolve rust flecks on rawsteel [Re: dwcopple]
benjamming Offline


Registered: 01/03/04
Posts: 5799
Loc: northern Alabama
Naval jelly has phosphoric acid - up to 30% along with a small amount of sulfuric acid (think pickling).

Are you experience flash rust on the part?

Top
#3149378 - 10/08/13 03:42 PM Re: need something to dissolve rust flecks on rawsteel [Re: dwcopple]
dwcopple Offline


Registered: 10/11/04
Posts: 3603
Loc: Michigan
used CLR and it darkened the metal significantly frown Now what?
_________________________
2015 Chevrolet Silverado All-Star edition 4.3 Ecotec3 V6
2011 Chrysler 200 Limited 3.6L V6

Top
#3149724 - 10/08/13 09:15 PM Re: need something to dissolve rust flecks on rawsteel [Re: dwcopple]
dwcopple Offline


Registered: 10/11/04
Posts: 3603
Loc: Michigan
I wiped of the blackish residue and wiped it down with Ed's Red. I just took it out and dunked it in my used engine oil and am letting it drip dry back into the bucket overnight. Tomorrow I'll brush it off with some kerosene and a parts brush. Then it should be good to go I guess.
_________________________
2015 Chevrolet Silverado All-Star edition 4.3 Ecotec3 V6
2011 Chrysler 200 Limited 3.6L V6

Top
#3150001 - 10/09/13 08:57 AM Re: need something to dissolve rust flecks on rawsteel [Re: dwcopple]
Phishin Offline


Registered: 05/01/12
Posts: 2032
Loc: Indiana
CLR created oxides on the metal. That's why it darkened up.

Why not degrease the part, and immediately slap some primer on it....and then put whatever paint/finish you want on it?

My favorite rust preventor is Phosphoric Acid with Zinc Oxide dissolved in it. I make my own. But POR 15 makes it as well. The acid eats away the rust, and the zinc deposits on the iron (which forms a galvanic-like coating on the steel). This prevents rusts from forming by "sealing" it off, and the zinc is sacrificial to the iron.

Then paint immediately once dry. POR15 has an excellent paint product as well.
_________________________
2010 Accord-LX K24: PU 5w30
2009 Subaru Forester 2.5X: M1 TDT
1990 Chevy K1500 350TBI: Frankenbrew
2008 Ruckus 50ccGET: M1R Mix

Top
#3150800 - 10/09/13 11:01 PM Re: need something to dissolve rust flecks on rawsteel [Re: Phishin]
wally6934 Offline


Registered: 02/18/12
Posts: 309
Loc: Wi
Originally Posted By: Phishin
My favorite rust preventor is Phosphoric Acid with Zinc Oxide dissolved in it. I make my own. But POR 15 makes it as well. The acid eats away the rust, and the zinc deposits on the iron (which forms a galvanic-like coating on the steel). This prevents rusts from forming by "sealing" it off, and the zinc is sacrificial to the iron.

Then paint immediately once dry. POR15 has an excellent paint product as well.


Can you share your top secret procedure for making the generic Por-15. Also does it have a shelf life.

Top
#3150894 - 10/10/13 06:06 AM Re: need something to dissolve rust flecks on rawsteel [Re: Phishin]
dwcopple Offline


Registered: 10/11/04
Posts: 3603
Loc: Michigan
Originally Posted By: Phishin

Why not degrease the part, and immediately slap some primer on it....and then put whatever paint/finish you want on it?
because it is a moving part on a rifle
_________________________
2015 Chevrolet Silverado All-Star edition 4.3 Ecotec3 V6
2011 Chrysler 200 Limited 3.6L V6

Top
#3269660 - 02/03/14 09:40 PM Re: need something to dissolve rust flecks on rawsteel [Re: Phishin]
daves66nova Offline


Registered: 04/11/04
Posts: 3335
Loc: los angeles
Originally Posted By: Phishin

My favorite rust preventor is Phosphoric Acid with Zinc Oxide dissolved in it. I make my own.
Can you share your top secret procedure for making the generic Por-15. Also does it have a shelf life.
_________________________
THIS SPACE FOR RENT, PLEASE PM ME.

Top