Penetrating fluid

[spongerich]

I bought this vise a couple years ago. It had been sitting out in the weather for years.
Frozen up solid. For 2 weeks, I sprayed it with PB and tapped it with a hammer a couple times a day. Eventually it opened right up.

Most penetrants work best if you heat the parts up some, then spray it in and let it be drawn in as the parts cool.

 

[Ed ke6bnl]

I read about it here and have tried it myself, a 50 50 mix of ATF and Acetone.

this stuff in the man kroil is expensive junk, I was taking apart an old 50 truck to the frame and tried them all. ATF Acetone is the best and cheaper.

 

[maxpower_hd]

Where are you all buying Kroil? I want to give it a shot but didn't know if I can buy it anywhere local

You can find it on line. I was lucky enough to come across a gallon that was being disposed of as the result of a clean up at work. I'm the haz waste guy so I "disposed of it". They also have spray cans in stock that look suspiciously like the ones I have at home.

 

[66HertzClone]

OH yea, well here is my Mustang

 

[rambo19]

The secret is time. If I know ahead of time that I'm gonna be working on rusted bolts I start spraying them with pb a day or two in advance if possible. It really helps.

This^
Plus clean with a wire brush 1st.

 

[LumpyMusic]

CRC Freez-Off. It's the same light oil stuff as the others plus it freezes the object you spray it on. Freeze shrinks the joint, maybe breaking the corrosion, maybe allowing the light oil to get in there.

Add heat if you want with soldering gun, big iron, even a spot weld from a MIG. You don't even have to weld something to it, just hit it with all that Edison Medicine with it's accompanying high heat.

Of course there's the expectable responses. Either the most redneck engineering approach (ATF and Acetone) or the most boutique (Kroil).


Sgt Lumpy

 

[stg454]

I just bought my first can of Kroil. Looking forward to trying it out on my next project. I got mine though Amazon

 

[M6erfan]

Of course there's the expectable responses. Either the most redneck engineering approach (ATF and Acetone) or the most boutique (Kroil).

Sgt Lumpy

I just bought my first can of Kroil. I got mine though Amazon

So you shop at boutiques...

 

[404]

I've tried the acetone/atf and when I tried to mix it, it would just not mix at all. It just seperated into gobs of acetone and gobs of atf within seconds after shaking it. Brushing it on just resulted in drops of acetone dripping right off. Seems like straight atf would be just as effective.

Let it sit and separate then look at the acetone layer. It is pink color now. I assume that a small amount of the ATF dissolves into the acetone, and that is doing the penetrating.

 

[rlitman]

Let it sit and separate then look at the acetone layer. It is pink color now. I assume that a small amount of the ATF dissolves into the acetone, and that is doing the penetrating.

Or perhaps just a small amount of the red dye in the ATG dissolves into the acetone.

 

[KineticDissent]

Heat and boutique is the tried and true for when time is money. Just saying

 

[jeffmoss26]

Kroil all the way!