Don Coatney Posted June 2, 2009 Report Posted June 2, 2009 Penetrating Oils Compared* Machinist's Workshop magazine actually tested penetrants for break out torque on rusted nuts. Significant results!* They arranged a subjective test of all the popular penetrants with the control being the torque required to remove the nut from a "scientifically rusted" environment.* Penetrating oil Average torque required to break nut loose* None ..............…………...... 516 pounds* WD-40 …………................ 238 pounds* PB Blaster………. .............. 214 pounds* Liquid Wrench……………. 127 pounds* Kano Kroil ……….............. 106 pounds* ATF-Acetone mix………......53 pounds* Note- The ATF-Acetone mix was a "home brew" mix of 50 - 50 automatic transmission fluid and acetone* The "home brew" was better than any commercial product in this test. A local machinist group mixed up a batch and all now use it with equally good results. Also note that Liquid Wrench is about as good as Kroil and is only about 20% of the price. Quote
Plymouthy Adams Posted June 2, 2009 Report Posted June 2, 2009 excellent posting Don..wonder how they were able to say without question that all the nuts were eqully rusted in the test sample..but am sure they were close enough and even at that the reduced friction was significant..so with a torch..application of the 50/50 home mix..you would need some wort of tape to keep it from falling of while you look for your wrench.. Quote
Don Coatney Posted June 2, 2009 Author Report Posted June 2, 2009 It appears they used a top secret scientifically rusted environment. Careful with applying flame to a 50/50 acetone/ATF mixture. The word accelerant comes to mind. Quote
greg g Posted June 2, 2009 Report Posted June 2, 2009 after years of using liquid wrench, I thought that I had found a more effective agent in PB Blaster. After using it for these last few years it would never cross my mind to go back to LW. I guess the numbers don't lie but by SOP it seems PB works quicker and better the LW. I would think the problem with the home brew is acetone's volatility (readiness to evaporate at ambient temp and normal atmospheric pressure) would mean it would need to be stored in a sealed container, and not the typical application device like an oil can or sprayer. Plus you would need to keep in in a metal or glass vessel. Quote
Plymouthy Adams Posted June 2, 2009 Report Posted June 2, 2009 Gee Don you take the fun out of everything..... I notice also that the use of wintergreen oil was not mentioned in this test..that is the number one penetrant use by the navy/marine industry for the salt enviroment that the machinery was subject to..plus it has a most pleasant odor... Quote
Young Ed Posted June 2, 2009 Report Posted June 2, 2009 At Dads we've used liquid wrench for years. Recently tried seafoam deep creep and another one. Both were quite a lot more then liquid wrench and we didn't notice much of a difference. We have also been using lately the liquid wrench that comes in a gallon can and you put it in your own spray bottle. Seems to work well too. Quote
Don Coatney Posted June 2, 2009 Author Report Posted June 2, 2009 Gee Don you take the fun out of everything.....I notice also that the use of wintergreen oil was not mentioned in this test..that is the number one penetrant use by the navy/marine industry for the salt enviroment that the machinery was subject to..plus it has a most pleasant odor... Salty Navy guys stuck on a ship, smell good wintergreen, Penetrant....... Is this another case of where no man has gone before? Quote
BobT-47P15 Posted June 2, 2009 Report Posted June 2, 2009 I've tried different brands in the last few years.....I can't tell that one does much more than another, at least in the things I've worked on. Quote
Niel Hoback Posted June 2, 2009 Report Posted June 2, 2009 I've only tried three, Liquid wrench, PB blaster and Kroil. The Kroil was easily the best. Quote
dirty dan Posted June 2, 2009 Report Posted June 2, 2009 Salty Navy guys stuck on a ship, smell good wintergreen, Penetrant.......Is this another case of where no man has gone before? You're a sick mind Coatney! Quote
Plymouthy Adams Posted June 2, 2009 Report Posted June 2, 2009 maybe some of the old sea-salts can answer that..maybe it can loosen a variety of nuts...I have no knowledge beyond thread components..not sure I even want to know the answer to that.... Quote
randroid Posted June 2, 2009 Report Posted June 2, 2009 Gents, I used wintergreen while in the Navy and nothing can hold a candle to it, as Tim mentioned, but it has two drawbacks; it's quite pricey (so I was told) and is so poisonous that I could get it only through the ship's pharmacy. A few years ago I spoke with a pharmacist about what it would take to score a small bottle he said he never heard of it. I think he was feigning ignorance but if the folks who could supply it don't want to deal with it then it will probably fade into an urban legend. -Randy Quote
Plymouthy Adams Posted June 2, 2009 Report Posted June 2, 2009 the wintergreen oil they use is synthetic for sure...we used to get it out of the pre-expended bins (free bin if you will) came in plastic brown bottles very much like that of hydrogen peroxide..sure wish I had a couple bottle of it today..it worked very well.... Quote
radioguy7 Posted June 2, 2009 Report Posted June 2, 2009 Kroil is what we used and swore by in the shop when we tore down P&W JT8D's and other gas turbine engines. Nothing else we tried seemed to work as well. On another note, we used to use a degreaser called "Brulin" and was supplied to us thru State chemical. That stuff was the best degreaser/cleaner I have ever used. If used straight and left to soak it would even remove paint if using a presure washer. Quote
Plymouthy Adams Posted June 2, 2009 Report Posted June 2, 2009 our chemist at the shipyard make a concoctation of chemicals for cleaning that they referred to as "Burko" had a nasty foul odor though....I used a mixture of A/C coil cleanser and 85% anhydrous amonia..that stuffed rolled grease and nicotine stains from any and all interior mounted electronics's compartment/case..I still mix a similar potion yet today.. Quote
grey beard Posted June 3, 2009 Report Posted June 3, 2009 Hey Don, Ever try that wintergreen oil on hemmhroids? Word on the street is that it works way better'n Vicks Vaporub. Mebby we'll have to ask a sailor, what? Quote
RobertKB Posted June 3, 2009 Report Posted June 3, 2009 Another topic degenerates beyond original purpose. Ain't it great! Quote
Joe Flanagan Posted June 3, 2009 Report Posted June 3, 2009 Like a bad wheel on a shopping cart. Always wants to pull you in the direction of the tabloids and the trashy paperbacks. Quote
Niel Hoback Posted June 3, 2009 Report Posted June 3, 2009 And yet we continue to read it faithfully. Quote
p10plymouth Posted June 3, 2009 Report Posted June 3, 2009 My Dad sitting me ... saw the word Acetone and he had bladder cancer using chemicals all his life .. A chemist told me Acetone causes cancer when handling .. use gloves or better yet don't use it ..better to be safe.. Quote
Plymouthy Adams Posted June 3, 2009 Report Posted June 3, 2009 don't use rubbing alcohol then...! Quote
later Posted June 3, 2009 Report Posted June 3, 2009 We used oil of wintergreen on board in the engine room and it worked okay. It was obtained from the pharmacy. They had it on hand for use as a liniment, oil of wintergreen will heat up a sore knee just like Ben-Gay and the smell is the same. Quote
knuckleharley Posted June 4, 2009 Report Posted June 4, 2009 Penetrating Oils Compared*Machinist's Workshop magazine actually tested penetrants for break out torque on rusted nuts. Significant results!* They arranged a subjective test of all the popular penetrants with the control being the torque required to remove the nut from a "scientifically rusted" environment.* Penetrating oil Average torque required to break nut loose* None ..............…………...... 516 pounds* WD-40 …………................ 238 pounds* PB Blaster………. .............. 214 pounds* Liquid Wrench……………. 127 pounds* Kano Kroil ……….............. 106 pounds* ATF-Acetone mix………......53 pounds* Note- The ATF-Acetone mix was a "home brew" mix of 50 - 50 automatic transmission fluid and acetone* The "home brew" was better than any commercial product in this test. A local machinist group mixed up a batch and all now use it with equally good results. Also note that Liquid Wrench is about as good as Kroil and is only about 20% of the price. I've always figured a 50/50 mix of ATF and brake fluid would be a pretty good penetrating oil. Never tried it,though. Quote
knuckleharley Posted June 4, 2009 Report Posted June 4, 2009 Hey Don,Ever try that wintergreen oil on hemmhroids? Word on the street is that it works way better'n Vicks Vaporub. Mebby we'll have to ask a sailor, what? NOTHING works better than Vapor Rub! Now,I'm not saying it will cure cancer,but I'm not saying it won't,either. Quote
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