Results 1 to 19 of 19

Thread: Best rust penetrant!!!!!

  1. #1
    turbo addict looneytuner's Avatar
    Join Date
    Dec 2005
    Location
    Maryland Heights, Mo. St. Loui
    Posts
    1,569

    Best rust penetrant!!!!!

    50/50 mix of acetone and brake fluid!!!!! I have some Kroil ordered. USPS screwed up the order. So....I tried this concoction! Less that 5 minutes I put a vise-grip on the offending bolts. ( had previously ground the heads off to get something loose on a Chicago car.) They were almost LOOSE!!!!!!!!!!!!!!!!!!! I never saw anything like this before!

  2. #2
    turbo addict
    Join Date
    Aug 2009
    Location
    Myrtle Beach, SC
    Posts
    1,947

    Re: Best rust penetrant!!!!!

    The best rust penatrant is an oxy acetylene torch.

  3. #3
    turbo addict looneytuner's Avatar
    Join Date
    Dec 2005
    Location
    Maryland Heights, Mo. St. Loui
    Posts
    1,569

    Re: Best rust penetrant!!!!!

    You don't need the torch with this stuff. Try it, you will like it!

  4. #4
    Supporting Member Turbo Mopar Contributor
    Join Date
    Feb 2007
    Location
    Camilla Ga
    Posts
    662

    Re: Best rust penetrant!!!!!

    Not going to explode.... Make the shop smell like a fart.

  5. #5
    Supporting Member Turbo Mopar Contributor
    Join Date
    Feb 2015
    Location
    toronto
    Posts
    667

    Re: Best rust penetrant!!!!!

    It is worth a try
    Regards,
    Miles

    DD '87 Sundance T1, 12PSI, SLH with rear disks
    Project '87 CSX #432
    Donor car '88 Daytona Shelby Z, TII with S60 Turbo/smec, 3 bar.

  6. #6
    turbo addict
    Join Date
    Dec 2006
    Location
    MPLS, MN
    Posts
    3,158

    Re: Best rust penetrant!!!!!

    I had heard a variant of this. 50-50 blend of acetone and ATF. That seems to work pretty good too. I'll have to try them side by side.
    Todd

  7. #7
    turbo addict
    Join Date
    Dec 2005
    Location
    Mesa, AZ
    Posts
    6,966

    Re: Best rust penetrant!!!!!

    Issue with acetone, it can catch on fire, keep it in a safe place!!

  8. #8
    Supporting Member II Turbo Mopar Contributor iTurbo's Avatar
    Join Date
    Dec 2005
    Location
    Gillette, Wyoming
    Posts
    5,162

    Re: Best rust penetrant!!!!!

    I'll have to try this on the next sewer machine rebuild at work.
    87 Shelby Lancer #127
    91 Dodge Spirit R/T
    08 Dodge Caliber SRT-4
    86 Dodge Omni GLH Turbo

  9. #9
    Rhymes with tortoise. Turbo Mopar Staff cordes's Avatar
    Join Date
    Dec 2005
    Location
    Tuscola, IL
    Posts
    19,219

    Re: Best rust penetrant!!!!!

    Quote Originally Posted by tryingbe View Post
    Issue with acetone, it can catch on fire, keep it in a safe place!!
    It eats most of the spray bottles I've put it in too.

    I've found that Kroil is the best penetrating oil I've used. For heavily rusted stuff Kroil isn't the best. If you knock the rust off, you're good to go. I've used acetone and ATF before. I wasn't impressed given how much trouble it was to make and store.

  10. #10
    turbo addict looneytuner's Avatar
    Join Date
    Dec 2005
    Location
    Maryland Heights, Mo. St. Loui
    Posts
    1,569

    Re: Best rust penetrant!!!!!

    Quote Originally Posted by cordes View Post
    It eats most of the spray bottles I've put it in too.

    I've found that Kroil is the best penetrating oil I've used. For heavily rusted stuff Kroil isn't the best. If you knock the rust off, you're good to go. I've used acetone and ATF before. I wasn't impressed given how much trouble it was to make and store.
    Just mix a little in the acetone cap! Use a flux brush for soldering to put it on the bolts. Half a cap was enough to 2 bolts.

  11. #11
    Boost, it's what's for dinner... Turbo Mopar Staff Aries_Turbo's Avatar
    Join Date
    Dec 2005
    Location
    Warsaw, NY
    Posts
    8,138

    Re: Best rust penetrant!!!!!

    Quote Originally Posted by chromguy View Post
    It is worth a try
    I've used acetone and atf before with good results. Haven't tried brake fluid though.

    Brian

    - - - Updated - - -

    Quote Originally Posted by cordes View Post
    It eats most of the spray bottles I've put it in too.

    I've found that Kroil is the best penetrating oil I've used. For heavily rusted stuff Kroil isn't the best. If you knock the rust off, you're good to go. I've used acetone and ATF before. I wasn't impressed given how much trouble it was to make and store.
    I use the old school little metal pump cans from harbor freight. They work well. Sometimes you have to make a plastic gasket though.

    Quote Originally Posted by turbovanman
    This one is easy, I have myself to blame, I rush things, don't pay attention to gauges when I should, change to much stuff at once then expect miracles, the list is endless.

  12. #12
    Hybrid booster
    Join Date
    Jan 2007
    Location
    Marietta, GA
    Posts
    749

    Re: Best rust penetrant!!!!!

    I find this guys videos interesting. He seems very knowledgeable. Strong language and iffy jokes:
    https://youtu.be/2G-dX50JuXE

  13. #13
    Supporting Member Turbo Mopar Contributor
    Join Date
    Feb 2015
    Location
    toronto
    Posts
    667

    Re: Best rust penetrant!!!!!

    Quote Originally Posted by RattFink View Post
    I find this guys videos interesting. He seems very knowledgeable. Strong language and iffy jokes:
    https://youtu.be/2G-dX50JuXE
    Not all Canadians speak this language but he is knowledgeable.

    I tried the brake fluid+ acetone yesterday (stored in a medical syringe) with success. Not sure if it is any better than any other mix.
    Regards,
    Miles

    DD '87 Sundance T1, 12PSI, SLH with rear disks
    Project '87 CSX #432
    Donor car '88 Daytona Shelby Z, TII with S60 Turbo/smec, 3 bar.

  14. #14
    turbo addict
    Join Date
    Feb 2010
    Location
    Piedmont, Ohio
    Posts
    4,106

    Re: Best rust penetrant!!!!!

    Go to the local dodge dealer and ask for a can of rust penetrant. The mopar branded stuff is awesome, will bubble and foam up on rust like battery acid on concrete.
    Ian Adams Function>Form 1990 shadow scrapped, too rusty:( 1991 Spirit R/T Scrapped, parts sold:( 1989 Turbo Caravan Daily beater with built-[I]ish [/I]​engine slowly evolving into weekend turbo beater.

  15. #15
    Supporting Member II Turbo Mopar Contributor jonnymopar's Avatar
    Join Date
    Feb 2009
    Location
    Southeastern MA
    Posts
    697

    Re: Best rust penetrant!!!!!

    Quote Originally Posted by shackwrrr View Post
    Go to the local dodge dealer and ask for a can of rust penetrant. The mopar branded stuff is awesome, will bubble and foam up on rust like battery acid on concrete.
    Pretty solid reviews, one describing it exactly how you did:

    https://www.amazon.com/Genuine-Chrys.../dp/B00BV4DBAU
    Jon J.

    1989 Daytona ES 2.4L DOHC
    2003 Neon SXT

  16. #16
    Supporting Member II Turbo Mopar Contributor iTurbo's Avatar
    Join Date
    Dec 2005
    Location
    Gillette, Wyoming
    Posts
    5,162

    Re: Best rust penetrant!!!!!

    There is a YouTube channel called "Project Farm" that recently covered this. He does his own home-brew testing on products like these.

    https://www.youtube.com/watch?v=xUEob2oAKVs

    He has some really cool/interesting videos!
    87 Shelby Lancer #127
    91 Dodge Spirit R/T
    08 Dodge Caliber SRT-4
    86 Dodge Omni GLH Turbo

  17. #17
    Mitsu booster
    Join Date
    Dec 2013
    Location
    Hutchinson, MN
    Posts
    20

    Re: Best rust penetrant!!!!!

    Quote Originally Posted by shackwrrr View Post
    Go to the local dodge dealer and ask for a can of rust penetrant. The mopar branded stuff is awesome, will bubble and foam up on rust like battery acid on concrete.
    Case IH has something similar. However Kroil gets my vote. Either way, give them time to soak.

  18. #18

    Re: Best rust penetrant!!!!!

    Kroil rocks ! If the power company uses it, it must be good.

  19. #19
    Boost, it's what's for dinner... Turbo Mopar Staff Aries_Turbo's Avatar
    Join Date
    Dec 2005
    Location
    Warsaw, NY
    Posts
    8,138

    Re: Best rust penetrant!!!!!

    looks like project farm's test of kroil puts it way below the cheaper stuff.

    ive used acetone/atf for years. i have metal pump cans (old school) that i use for the stuff cause it kills certain plastics and rubbers.

    Brian

    Quote Originally Posted by turbovanman
    This one is easy, I have myself to blame, I rush things, don't pay attention to gauges when I should, change to much stuff at once then expect miracles, the list is endless.

Similar Threads

  1. Daytona Rust
    By rampant150 in forum Interior, Exterior and Chassis Modifications
    Replies: 18
    Last Post: 11-05-2011, 01:31 AM
  2. Pro rust treatment
    By looneytuner in forum Interior, Exterior and Chassis Modifications
    Replies: 0
    Last Post: 10-01-2007, 02:44 PM
  3. Surface rust?
    By Dave in forum Interior, Exterior and Chassis Modifications
    Replies: 1
    Last Post: 11-08-2006, 07:59 PM

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •