I find the best thing is to use a propane torch, heat the rusted part for about 45 seconds or so, then quench it for about 20 seconds with PB Blaster. Then repeat. After 2-3 times of this, the bolt and rust damn near melt right off Just like a hot knife through butter
Yeah, but stay away from the smoke....wowie! Does it burn your eyes!
Posts: 4218 From: Martville, NY USA Registered: Jun 2001
MEK - are you talking about the paint additive "Methyl Ethyl Keytone" (I believe thats how its spelled) It is an additive that you can add to paint to help the paint dry or cure faster. According to the MSDS sheet, that stuff is pretty harsh! Can cause possible nervous system damage JUST from the vapors!
Assuming that your story is true, and the MEK is the same that you are talking about.... Did the guy survive?
Wow, I go looking for this to try a mix of atf and acetone for a axle nut I'm having trouble with and find this.
Yes that MEK. Yes, the guy did survive, it was like a instant gag reflex. The MEK hit his mouth and he spit it out. Very harsh stuff, and yes it is used as a part of the catlyst in Bondo fiberglass resin, but I think it's actually the peroxide in the catlyst that hardens the resin. I'm not sure about other brands. I used MEK all the time at the machine shop. It was a common thinner and cleaner for the aerospace paints I sprayed and a few of the epoxies. It would cause the rubber o-rings to swell and degrade in the guns, so I had to replace them frequently. It also worked really well for cleaneing the oils off of bare metal parts before painting. Also it's vapors are very flamable. Back when I smoked if I couldn't find my lighter at work, I'd squirt a little MEK in my torch striker and click it. The MEK would ignite and I'd light my cig.
[This message has been edited by Khw (edited 02-01-2010).]
Came across this article on different penetrating oils. With all the headaches that we go through removing rusted nuts and bolts, this article sounds promising. I haven't had a chance to try it yet - would be interested to hear some feedback from others.
Machinist's Workshop Mag (tm)recently published some information on various penetrating oils that I found very interesting.
And to think just now i didn't renew, so this month was the first month i didn't get one for a few years now.