Interesting rusted fastener removal technique
 

This was news to me, my dad sent me a link to this the other day;

https://youtu.be/KFdFsfSAuyc

This forum probably holds the highest percentage of rusted fastener removals on the internet so hopefully this will be of use to someone.

Great tip.
I am interested to know if this will work in cases of electrolysis, eg when a steel bolt or machine screw is stuck in an aluminum housing...
Will try it out.

That's a lovely trick! Thanks for the tip, Russ.

Alex

I don't see how this can possibly work......

Thanks Adrian! I did have the same thought… I just hope I'll be able to try it one day with the Jeep I have to restore. I don't think the wax can suck in by the heat, it should be completely sealed by the rust!

Martin

Exactly Martin! If there is a gap for the wax to get in, the thread is not rusted solid.

The wax wicks into whatever crevices exist, theoretically around and between the rust particles. The heat also disrupts that bond. by expansion. The demonstration's second message is that forcing a stuck nut or bolt will break it.

I have never tried it but rust by nature is porous and capillary action doesn't require much clearance. Mind you the level of rust between an old road car wheel and an original bolt on a 75 year old piece of armour are several orders of magnitude apart. I'd be interested to hear how it works if anyone tries it, I've got too much newer stuff that needs fixing at the moment.

You won't get enough heat with a lighter to expand steel.

Has anybody tried this properly?