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Re: Best rust penetrant? [Re: McCandlessboy] #1922564
09/30/15 04:38 PM
09/30/15 04:38 PM
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Someplace you aren't
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SomeCarGuy Offline
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People laugh but i have a can of the prolong stuff for the most stubborn bolts. I use PB as the mainstay and only use that on stuff that is really bad. They used to sell it in the stores when they were promoting their corrosive snake oil for engines. Last i knew you pretty much have to order it direct from them online now.


I want my fair share
Re: Best rust penetrant? [Re: McCandlessboy] #1922744
09/30/15 08:46 PM
09/30/15 08:46 PM
Joined: Dec 2004
Posts: 10,549
Rittman Ohio
fourgearsavoy Offline
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My favorite has always been the GM heat riser solvent for rusted bolt and pins in corroded aluminium. That stuff just eats corrosion.
Gus beer


64 Plymouth Savoy
493 Indy EZ's by Nick at Compu-Flow
5-Speed Richmond faceplate Liberty box
Dana 60
Re: Best rust penetrant? [Re: McCandlessboy] #1922956
10/01/15 12:18 AM
10/01/15 12:18 AM
Joined: May 2005
Posts: 125
Iowa
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dsp Offline
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A spray bottle with plain ol' water! Water helped create the rust, therefore, water is the solvent that will loosen the rust. And yes, I live in Iowa so I know a thing or two about rust!

Re: Best rust penetrant? [Re: McCandlessboy] #1923016
10/01/15 02:05 AM
10/01/15 02:05 AM
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Jefferson State
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srt Offline
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another vote for kroil, I order direct from kano labs

Re: Best rust penetrant? [Re: fourgearsavoy] #1923024
10/01/15 02:23 AM
10/01/15 02:23 AM
Joined: Aug 2011
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SE PA
Yellow Fever Offline
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Originally Posted By fourgearsavoy
My favorite has always been the GM heat riser solvent for rusted bolt and pins in corroded aluminium. That stuff just eats corrosion.
Gus beer


Ditto! That's all we used at work, worked great as long as they didn't mess with the formula.

Re: Best rust penetrant? [Re: Yellow Fever] #1923295
10/01/15 01:48 PM
10/01/15 01:48 PM
Joined: May 2003
Posts: 6,545
Downtown Roebuck Ont
Twostick Offline
Still wishing...
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Downtown Roebuck Ont
Originally Posted By Yellow Fever
Originally Posted By fourgearsavoy
My favorite has always been the GM heat riser solvent for rusted bolt and pins in corroded aluminium. That stuff just eats corrosion.
Gus beer


Ditto! That's all we used at work, worked great as long as they didn't mess with the formula.


Canadian Tire used to sell heat riser penetrant years ago. Can't get it now.

I use to have an 85 KW that had a seized piano type door hinge. I sprayed cans full of every brand you can imagine on it to no effect. One shot of the heat riser stuff and the red rust ran out of it. Another shot and a few more swings of the door and the door would swing shut and latch.

I'm thinking the active ingredient is acetone or toluene because the last time I could buy the stuff it was in a 4oz bottle so I poured it in a WD40 pump bottle and it ate the piston in the pump.

Kevin

Re: Best rust penetrant? [Re: dsp] #1923343
10/01/15 02:47 PM
10/01/15 02:47 PM
Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
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Originally Posted By dsp
A spray bottle with plain ol' water! Water helped create the rust, therefore, water is the solvent that will loosen the rust. And yes, I live in Iowa so I know a thing or two about rust!


Please explain.

Re: Best rust penetrant? [Re: fourgearsavoy] #1923346
10/01/15 02:49 PM
10/01/15 02:49 PM
Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
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Originally Posted By fourgearsavoy
My favorite has always been the GM heat riser solvent for rusted bolt and pins in corroded aluminium. That stuff just eats corrosion.
Gus beer


Same here, started buying the GM stuff when my dodge dealer quite selling there's.

Re: Best rust penetrant? [Re: McCandlessboy] #1923418
10/01/15 03:52 PM
10/01/15 03:52 PM
Joined: Oct 2005
Posts: 1,646
Ringtown, Pa.
Dartsport540 Offline
top fuel
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JB-80.. I have been using it for about 20 years. I tried all the rest that are listed above. JB- 80 works the best..


548 cu. in., Bill Mitchell Aluminum Block, CRT 727 auto trans, Alston Chassis. 8.981et at 149.46 mph. 1.204et - 60 foot, So Far....
Re: Best rust penetrant? [Re: dsp] #1923614
10/01/15 07:16 PM
10/01/15 07:16 PM
Joined: Sep 2004
Posts: 6,906
IL, Aurora
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ademon Offline
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Originally Posted By dsp
A spray bottle with plain ol' water! Water helped create the rust, therefore, water is the solvent that will loosen the rust. And yes, I live in Iowa so I know a thing or two about rust!

Do you use a drop of dish soap with it to get it to flow?

Re: Best rust penetrant? [Re: McCandlessboy] #1923703
10/01/15 08:59 PM
10/01/15 08:59 PM
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Posts: 8,192
fredericksburg,va
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cudaman1969 Offline
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Hope everything's going well with your dad, very honest and easy to deal with back in the day. He and Kenny revitalized us Mopar guys with the Indy head low deck program(had one myself). Thank you

Re: Best rust penetrant? [Re: McCandlessboy] #1923728
10/01/15 09:37 PM
10/01/15 09:37 PM
Joined: Feb 2010
Posts: 1,377
Ohio
Todd Offline
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Ohio
Originally Posted By McCandlessboy
My dad is in love with the old mopar spray 0318039AB. I guess the formula has changed, which he doesn't like. Any thoughts what might be a good replacement? He like the foaming aspect of the original.

Thanks!

I absolutely love that stuff. It's all I use for rust penetrant. The part number did change to an AD. That's probably when the formula changed.

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Re: Best rust penetrant? [Re: GomangoCuda] #1927687
10/07/15 12:57 PM
10/07/15 12:57 PM
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Posts: 4
Colorado, USA
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homemadetools Offline
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Jon here from HomemadeTools.net.

Thanks for the mention.

To celebrate our 20,000th homemade tool, we made a new ebook featuring our top 50 homemade tools. You guys are welcome to it for free:

http://download.homemadetools.net/50MustReadTools.pdf


Re: Best rust penetrant? [Re: McCandlessboy] #1927711
10/07/15 01:50 PM
10/07/15 01:50 PM
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Posts: 8,162
USA
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360view Offline
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Does Chrysler still sell the spray can stuff that they originally called
"Oxygen Sensor Thread Penetrant"
or something similar?

That worked wonders on stainless steel fasteners.

Re: Best rust penetrant? [Re: McCandlessboy] #1927938
10/07/15 08:00 PM
10/07/15 08:00 PM
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SD
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Conklin's Rust Bomb


It's Swifty! Swifty, you toad sucker!
Re: Best rust penetrant? [Re: homemadetools] #1927992
10/07/15 09:46 PM
10/07/15 09:46 PM
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Posts: 43,458
Round Lake Beach, Illinoisy
Rhinodart Offline
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Round Lake Beach, Illinoisy
Originally Posted By homemadetools


Jon here from HomemadeTools.net.

Thanks for the mention.

To celebrate our 20,000th homemade tool, we made a new ebook featuring our top 50 homemade tools. You guys are welcome to it for free:

http://download.homemadetools.net/50MustReadTools.pdf



Pretty cool book, thanks for coming on board and linking us in! up


The funny thing about science is that if you change one miniscule parameter you change the entire outcome to the way you want it.

JB Rhinehart, Realist

A-Body's RULE!
Re: Best rust penetrant? [Re: homemadetools] #1955020
11/20/15 07:47 PM
11/20/15 07:47 PM
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dogdays Offline
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Found this in Engine Builder online:

What’s the Best Penetrant?

A recent online article provided some information on various penetrating oils. A subjective test of all the popular penetrates with the control being the torque required to remove the nut from a “scientifically rusted” environment resulted in the following numbers.

Penetrating oils ……….Average torque load to loosen

No Oil used 516 pounds

WD-40 238 pounds

PB Blaster 214 pounds

Liquid Wrench 127 pounds

Kano Kroil 106 pounds

ATF*-Acetone mix 53 pounds

The ATF*-Acetone mix was a “home brew” mix of 50% – 50% by volume automatic transmission fluid and acetone. It has been said that lacquer thinner may be used as a substitute for acetone.

From: Engine Pro Technical Committee with special thanks to Machinist’s Workshop Magazine (www.machinistsworkshop.net) and Bert Hitzing.

R.

Re: Best rust penetrant? [Re: McCandlessboy] #1955027
11/20/15 07:59 PM
11/20/15 07:59 PM
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IL, Aurora
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ademon Offline
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I tried the home brew, it wasn't as good as kroil.

Re: Best rust penetrant? [Re: ademon] #1955171
11/21/15 01:06 AM
11/21/15 01:06 AM
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IN
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ahy Offline
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I believe the 50/50 acetone/ATF works... that said, how many of us use heat if the fastener won't move with reasonable torque? Hitting acetone + ATF with a torch would be "interesting".

Re: Best rust penetrant? [Re: McCandlessboy] #1955200
11/21/15 01:55 AM
11/21/15 01:55 AM
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Jefferson State
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srt Offline
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Jefferson State
I think any penetrant "works" better if it's applied and subject to 1 or more heat cycles.
I learned about kroil when I worked in an auto shop where we installed a lot of tube headers. Spray some kroil on run vehicle for 10 minutes, spray a little more on let cool and remove the flange bolts and heat riser without ever breaking studs. Sometimes the stud would come out with the nut.
Is the mopar stuff called MP50? I've had good results with that, and pb too, but I don't like the smell of pb either.

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