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Re: Best rust penetrant?
[Re: McCandlessboy]
#1922037
09/29/15 09:24 PM
09/29/15 09:24 PM
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crabman173
Unregistered
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crabman173
Unregistered
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Kroil is my 80 year old dads favorite
That stuff works!!!
Have to google it and look around --not sure where the heck he gets it but wow! I have seen it do amazing stuff
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Re: Best rust penetrant?
[Re: McCandlessboy]
#1922128
09/29/15 11:19 PM
09/29/15 11:19 PM
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Joined: Jan 2003
Posts: 27,465
So Cal
autoxcuda
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 27,465
So Cal
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For all purpose penetrant, lube, and protection... JB-80 by Justice Brothers Once you break the bolt loose you need to lube it while unscrewing it or it could break on the way out. Also works great for lubing any metal to metal sliding surfaces and resists water washing it away. In my old job I sold it to huge gate company and their customers would call and Demand JB-80 to maintain their gates For years we also sold it to many Chrysler dealerships that could have just asked for the Mopar stuff that was also on the shelf.
Last edited by autoxcuda; 09/29/15 11:48 PM.
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Re: Best rust penetrant?
[Re: ]
#1922169
09/29/15 11:55 PM
09/29/15 11:55 PM
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Joined: Jan 2003
Posts: 11,500
delivering your oil
nutso suave
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 11,500
delivering your oil
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Kroil is my 80 year old dads favorite
That stuff works!!!
Have to google it and look around --not sure where the heck he gets it but wow! I have seen it do amazing stuff Works as good as anything and it doesn't smell like cancer (PB Blast'r). Kroil for the win.
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Re: Best rust penetrant?
[Re: nutso suave]
#1922256
09/30/15 02:05 AM
09/30/15 02:05 AM
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Joined: Apr 2012
Posts: 18,880
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RSNOMO
Moparts Torchbearer
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Moparts Torchbearer
Joined: Apr 2012
Posts: 18,880
-
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and it doesn't smell like cancer (PB Blast'r). Dam... Now, even 'PO' has to be 'PC'???
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Re: Best rust penetrant?
[Re: DaytonaTurbo]
#1922506
09/30/15 03:00 PM
09/30/15 03:00 PM
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Joined: Jan 2003
Posts: 27,465
So Cal
autoxcuda
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 27,465
So Cal
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I've been using PBlaster for several years. But heard nothing but good things about Kroil from a couple guys around town who swear by it. When we sold JB-80 to a PBlaster user, they never went back. JB-80 just isn't in Home Depot or Pep Boys, etc. We primarily sold it to industrial accounts, dealerships, and repair shops.
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Re: Best rust penetrant?
[Re: McCandlessboy]
#1922525
09/30/15 03:33 PM
09/30/15 03:33 PM
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Joined: Jan 2003
Posts: 74,976
U.S.S.A.
JohnRR
I Win
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I Win
Joined: Jan 2003
Posts: 74,976
U.S.S.A.
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Funny , we had Kroil at work and I was less than impressed with it, we also had a penetrant called GLOBO and it was the best I have used ... I still have a couple of cans stashed here at work. At home I use PB with very good results.
That said I just ordered a gallon can of Kroil because I picked up a WW2 USP Colt in original condition and it has been recommended to soak it in kroil to clean up the PATINA it has before oil it down for storage.
running up my post count some more .
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Re: Best rust penetrant?
[Re: McCandlessboy]
#1922539
09/30/15 03:53 PM
09/30/15 03:53 PM
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Joined: Jan 2003
Posts: 21,065
Niles , Ohio
therocks
oh wait.but hey.lets see.oh yeah.
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oh wait.but hey.lets see.oh yeah.
Joined: Jan 2003
Posts: 21,065
Niles , Ohio
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We used PB at work along with Castle for years.PB you can just about use water.Ive been using the WD40 penetrant thats new.Works good so far.We did use Zep at work and it was fantastic.It had teflon in it and beat all others we used in 30 years.Rocky
Chrysler Firepower
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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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Joined: Feb 2003
Posts: 10,200
Someplace you aren't
SomeCarGuy
I Live Here
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I Live Here
Joined: Feb 2003
Posts: 10,200
Someplace you aren't
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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
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Re: Best rust penetrant?
[Re: McCandlessboy]
#1922744
09/30/15 08:46 PM
09/30/15 08:46 PM
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Joined: Dec 2004
Posts: 10,552
Rittman Ohio
fourgearsavoy
I Live Here
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I Live Here
Joined: Dec 2004
Posts: 10,552
Rittman Ohio
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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 
64 Plymouth Savoy
493 Indy EZ's by Nick at Compu-Flow
5-Speed Richmond faceplate Liberty box
Dana 60
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Re: Best rust penetrant?
[Re: fourgearsavoy]
#1923024
10/01/15 02:23 AM
10/01/15 02:23 AM
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Joined: Aug 2011
Posts: 1,083
SE PA
Yellow Fever
super stock
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super stock
Joined: Aug 2011
Posts: 1,083
SE PA
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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 Ditto! That's all we used at work, worked great as long as they didn't mess with the formula.
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Re: Best rust penetrant?
[Re: Yellow Fever]
#1923295
10/01/15 01:48 PM
10/01/15 01:48 PM
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Joined: May 2003
Posts: 6,560
Downtown Roebuck Ont
Twostick
Still wishing...
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Still wishing...
Joined: May 2003
Posts: 6,560
Downtown Roebuck Ont
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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 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
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Re: Best rust penetrant?
[Re: dsp]
#1923343
10/01/15 02:47 PM
10/01/15 02:47 PM
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Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
Challenger 1
Too Many Posts
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Too Many Posts
Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
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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! Please explain.
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Re: Best rust penetrant?
[Re: fourgearsavoy]
#1923346
10/01/15 02:49 PM
10/01/15 02:49 PM
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Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
Challenger 1
Too Many Posts
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Too Many Posts
Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
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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 Same here, started buying the GM stuff when my dodge dealer quite selling there's.
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Re: Best rust penetrant?
[Re: McCandlessboy]
#1923418
10/01/15 03:52 PM
10/01/15 03:52 PM
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Joined: Oct 2005
Posts: 1,646
Ringtown, Pa.
Dartsport540
top fuel
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top fuel
Joined: Oct 2005
Posts: 1,646
Ringtown, Pa.
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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....
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Re: Best rust penetrant?
[Re: dsp]
#1923614
10/01/15 07:16 PM
10/01/15 07:16 PM
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Joined: Sep 2004
Posts: 6,906
IL, Aurora
ademon
master
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master
Joined: Sep 2004
Posts: 6,906
IL, Aurora
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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! Do you use a drop of dish soap with it to get it to flow?
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Re: Best rust penetrant?
[Re: McCandlessboy]
#1923728
10/01/15 09:37 PM
10/01/15 09:37 PM
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Joined: Feb 2010
Posts: 1,377
Ohio
Todd
pro stock
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pro stock
Joined: Feb 2010
Posts: 1,377
Ohio
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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: homemadetools]
#1927992
10/07/15 09:46 PM
10/07/15 09:46 PM
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Joined: Jan 2003
Posts: 43,522
Round Lake Beach, Illinoisy
Rhinodart
Rhinotruck
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Rhinotruck
Joined: Jan 2003
Posts: 43,522
Round Lake Beach, Illinoisy
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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 Pretty cool book, thanks for coming on board and linking us in! 
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!
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Re: Best rust penetrant?
[Re: homemadetools]
#1955020
11/20/15 07:47 PM
11/20/15 07:47 PM
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Joined: Jan 2003
Posts: 16,376
dogdays
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 16,376
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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.
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Re: Best rust penetrant?
[Re: ahy]
#1955203
11/21/15 02:03 AM
11/21/15 02:03 AM
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Joined: Jan 2003
Posts: 4,395
The Pale Blue Dot
Skeptic
master
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master
Joined: Jan 2003
Posts: 4,395
The Pale Blue Dot
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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". It's not that dramatic, it does burn and I'm sure some hamfisted mekanik has burned some car/building/themselves/other. The idea is to gradually build heat, then spray the penetrant. Going back and forth on torque helps too.
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Re: Best rust penetrant?
[Re: McCandlessboy]
#1955307
11/21/15 12:43 PM
11/21/15 12:43 PM
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Joined: Sep 2011
Posts: 1,487
STL
cdstl
pro stock
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pro stock
Joined: Sep 2011
Posts: 1,487
STL
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I've never used Kroil, and probably never will since it's not on a store shelf. I'm sure it's good stuff.
Hands down I will always use the 50/50 Acetone Trans fluid mix. I broke loose 11 45-year old brake line nuts without twisting the line. I can, and will, reuse all of them.
1972 Cuda 340 4 speed, 2001 Ram CTD 4x4 6 speed, 1970 Duster 408 4 speed, 1996 Ram 5.9 2x4 auto, 1965 Coronet 500
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Re: Best rust penetrant?
[Re: cdstl]
#1955323
11/21/15 01:33 PM
11/21/15 01:33 PM
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Joined: Feb 2003
Posts: 21,318
Manitoba, Canada
DaytonaTurbo
Too Many Posts
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Too Many Posts
Joined: Feb 2003
Posts: 21,318
Manitoba, Canada
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I've never used Kroil, and probably never will since it's not on a store shelf. Some auto parts stores have it on the shelf, although I have never used it.
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Re: Best rust penetrant?
[Re: DaytonaTurbo]
#1955361
11/21/15 02:35 PM
11/21/15 02:35 PM
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Joined: Jan 2003
Posts: 15,311
Omaha Ne
TJP
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 15,311
Omaha Ne
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we've tried, Kroil, I wasn't impressed PB works but stinks A couple brands of the freeze off by different companies, Rip OFF Liquid wrench so-so A friend at another shop gave me a can of Free all to try and it is the current favorite in the shop. it has consistently worked where others did not. it is not readily available so I buy it online by the case http://www.alliedelectronics.com/FS16.html 
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Re: Best rust penetrant?
[Re: McCandlessboy]
#1955401
11/21/15 04:12 PM
11/21/15 04:12 PM
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Joined: Sep 2011
Posts: 1,487
STL
cdstl
pro stock
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pro stock
Joined: Sep 2011
Posts: 1,487
STL
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I had to remove the pitman. I removed the nut and got all of the rust and grease off of the splines so the the Acetone mix could penetrate. I was careful not to squirt the stuff everywhere because I wanted to see how it would go through when I squirted it on the nut side. After about a half hour the stuff started running out of the bottom side towards the steering box.
1972 Cuda 340 4 speed, 2001 Ram CTD 4x4 6 speed, 1970 Duster 408 4 speed, 1996 Ram 5.9 2x4 auto, 1965 Coronet 500
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Re: Best rust penetrant?
[Re: McCandlessboy]
#2618588
02/08/19 11:38 AM
02/08/19 11:38 AM
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Joined: Feb 2010
Posts: 1,645
Phila. Pa.
Mattax
top fuel
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top fuel
Joined: Feb 2010
Posts: 1,645
Phila. Pa.
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This is a followup to the article Dogdays posted. I've highlighted the things I think are helpful clarifications. Machinist's Workshop V20 number 2, April/May 007, page 35
Article: “Testing Penetrating oils”
This reports a test of penetrating oils where they measured the force required to loosen rusty test devices. The details reported here were validated by the original article author. He also added some details on the methods.
You must buy the issue if you want to see how they did the test. The back issue is available for purchase.
The table below extracts the results table The lower the number of pounds the better. Interesting that a simple mix of acetone and power steering fluid (PSF) works the best!
Penetrating oil Average load Price per fluid ounce
None 516 pounds
WD-40 238 pounds $0.25
PB Blaster 214 pounds $0.35
Liquid Wrench 127 pounds $0.21
Kano Kroil 106 pounds $0.75
PSF-Acetone mix 53 pounds $0.10 (50/50 mix)
Notes from original article author:
1) These are loads required to free the test piece after 8 hours of immersion in penetrating oil. This is probably not representative of a quick squirt just before a wrench is applied.
2) The original article states ATF was used in the DIY mix. It was actually PSF. I corrected the table to reflect this.
© Copyright 8 February 2008, 63Avanti@sterkel.org
Permission to print and post on the internet in this form received from the author
8 February 2008 Avanti.org is gone.  Maybe its been saved in archive.org I haven't looked. There are various power steering fluids so we can only guess that the one used was one with low viscosity and high detergents.  My own experience has been that PB Blaster is good when applied the day or days before. Even better reapplying each day. I like it for situations where impact is not possible or seems inappropriate. Removal usually requires slow steady force. Stuff doesn't 'break free' but feels more like a fastener with interference fit. Kroil seems better for last minute use. Sili-kroil seems to help more in making it easier to turn once the bolt has broken free. I agree with those that like the sprays specifically for freeing equipment
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Re: Best rust penetrant?
[Re: homemadetools]
#2618657
02/08/19 02:21 PM
02/08/19 02:21 PM
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Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
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Hey guys - we have a new free ebook of homemade car tools: Good info, (much) appreciated!
live every 24 hour block of time like it's your last day on earth
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Re: Best rust penetrant?
[Re: McCandlessboy]
#2618679
02/08/19 02:57 PM
02/08/19 02:57 PM
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Joined: Aug 2004
Posts: 3,392
cheshire, ct
davesmopars
master
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master
Joined: Aug 2004
Posts: 3,392
cheshire, ct
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I use Seafoam Deep CreeP for years one of the best I think
Last edited by davesmopars; 02/08/19 03:14 PM.
Keeper of the 440 M code Cuda registry
mcodecuda@yahoo.com
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Re: Best rust penetrant?
[Re: davesmopars]
#2618695
02/08/19 03:33 PM
02/08/19 03:33 PM
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Joined: Jan 2003
Posts: 5,357
Rancho Cordova, California (Sa...
hemi71x
master
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master
Joined: Jan 2003
Posts: 5,357
Rancho Cordova, California (Sa...
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I use Seafoam Deep CreeP for years one of the best I think I bought a can of that last month, to give it a try, as it's available locally, at pretty much all the parts stores. Kroil, i have to order thru the manufacturer, and now shipping costs make it prohibitive. That Seafoam stuff works well, my two cents on the subject.
RF-4C Phantom 69-370 Zweibrucken, Germany
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Re: Best rust penetrant?
[Re: McCandlessboy]
#2618699
02/08/19 03:41 PM
02/08/19 03:41 PM
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Joined: Sep 2007
Posts: 14,889
up yours
Supercuda
About to go away
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About to go away
Joined: Sep 2007
Posts: 14,889
up yours
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Kroil - free delivery with Prime
They say there are no such thing as a stupid question.
They say there is always the exception that proves the rule.
Don't be the exception.
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Re: Best rust penetrant?
[Re: McCandlessboy]
#2618712
02/08/19 04:13 PM
02/08/19 04:13 PM
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Joined: Sep 2007
Posts: 14,889
up yours
Supercuda
About to go away
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About to go away
Joined: Sep 2007
Posts: 14,889
up yours
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Pays for itself real quick. But to each it's own
They say there are no such thing as a stupid question.
They say there is always the exception that proves the rule.
Don't be the exception.
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Re: Best rust penetrant?
[Re: McCandlessboy]
#2618760
02/08/19 05:30 PM
02/08/19 05:30 PM
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Joined: Jan 2011
Posts: 4,785
Utah and Alaska
astjp2
master
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master
Joined: Jan 2011
Posts: 4,785
Utah and Alaska
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If you want good quality stuff, go to a real hardware store, not home depot or lowes, Autozone, Advanced or Oriellys.... I use Grainger, Industrial Supply, Marshall's Industrial Hardware, Fastenal...McMaster Carr for mail order. Most of the chain auto parts stores do not have quality anything hardware/chemical wise typically unless they get it at a price point that they can make an uber profit.
1941 Taylorcraft
1968 Charger
1994 Wrangler
1998 Wrangler
2008 Kia Rio
2017 Jetta
I didn't do 4 years and 9 months of Graduate School to be called Mister!
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Re: Best rust penetrant?
[Re: McCandlessboy]
#2619068
02/09/19 02:42 PM
02/09/19 02:42 PM
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Joined: Jul 2011
Posts: 954
Chicago
PurpleBeeper
super stock
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super stock
Joined: Jul 2011
Posts: 954
Chicago
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Having worked in the automotive chemical industry and having done a lot of testing.....PB Blaster is the best
70 Roadrunner convt. street car
440+6, NOS, 4-spd, SS springs
'96 Mustang GT convt. street car
'04 4.6 SOHC, NOS, auto, lowered
"Officer, that button is for short on-ramps"
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Re: Best rust penetrant?
[Re: McCandlessboy]
#2619459
02/10/19 05:37 PM
02/10/19 05:37 PM
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Joined: Jul 2005
Posts: 11,632
SHELBY TWP,,MICHIGAN
72N96RR
I LOVE WEDGIES
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I LOVE WEDGIES
Joined: Jul 2005
Posts: 11,632
SHELBY TWP,,MICHIGAN
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1972 Road Runner / GTX 440 4spd Dana 3.54 Just about to turn 26K original miles..
A boat, a GMC truck, some Craftsman Tools, LOTS of Zombie Protection, and a few Goldfish..
If you love someone set them free..
If they come back it means nobody else wanted them either..!!
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Works for me too.
