removing rusted bolts/nuts

Status
Not open for further replies.
I tried it once and didn't see anything special.
Since i found Kroil a few years back this and PB have been sitting on the shelf.
 
Originally Posted By: Donald
The guy at NAPA showed me some CRC stuff that freezes the bolt/nut and they say is better than PB Blaster? Anyone tried it?


freezes or frees?

I've used the CRC penetrant (I think it was CRC, but don't recall the name, since it was some one elses I used in a pinch) and it worked similarly to PB Blaster. I haven't found anything that works as well as PB Blaster. If it's bad enough, use a nut buster - screws a wedge into the flat of the nut to literally bust it off the fastener.
 
Freezes...like freon that we used back before we knew about the ozone...worked great then. Cold caused differential shrinking and allowed better penetration of the liquid wrench...

Saw the ad on this and smiled...

And if it's bad - I skip right to the die grinder...
 
Last edited:
we used to have a product called "Rost Off Ice" by Wurth, but there was something with one of the chemicals and us regulations that made them change it to just "Rost Off" and it is not quite is good. However, Heat is deffinatly the best way to go...
 
As Trav stated earlier, Kroil is amazing. I've been using it since 1993 and have never had the need to use anything else.
 
A 'Flame Ax' sure comes in handy , esp for the larger stubborn stuff!

Donald - For average stuff, PB Blaster is very good. Apply several times and tap the parts . This helps work it in. We can't just spray it on and immediately remove the part!
Use 6 point or flank drive sockets/wrenches. They grab better.
 
Yes i tried it. It works ok. It seems to be a bit different cause its not really penetrating anything but freezing it to make it "shrink". I was not impressed but it might work with a sum heat. Heat one end freeze other end Maybe??
 
Cold freezing is a thing they do in movies to allow subsequent breaking of a lock.
Who can get liquid Nitrogen?
This works only when ridiculously low temps are achieved.
 
Status
Not open for further replies.
Back
Top Bottom