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Discussion Starter · #1 ·
What kick ass penetrating fluid do you guys use?
I have a carriage bolts on some wall hung closets that are widked tight.
Any thoughts?
 

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Son of a Plumber
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105 Posts
I have had good luck with PB Blaster as well...but...I've had better results with a product called Zoom Spout "RustBuster". This is the same company that makes the Zoom Spout Oiler containers which are great for oiling circulating pumps. I haven't seen it in awhile though. Also, there was a drawback to buying more containers that you could use up in a reasonable amount of time-evaporation. The product would disappear right off the shelf. Anyway, if you can find it-it's great product.

Ok...well I found the rustbuster I was referring to. It is available at Grainger here:

http://www.grainger.com/Grainger/items/1XPG4

Apparently their version is made by LA-CO. I can testify to it's effectiveness on exactly the problem you are facing-carrier bolts, as well as a myriad of other institutional type applications like freeing up clean out covers that haven't been opened in 30 years or more.

It's good stuff...
 

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The Old (antique) Master
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Illinois Licensed Plumber
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Best stuff I ever used is called Pipe Break. A small plumbing and heating supply here carries it. A buddy was working on his mothers 68 Mustang, and the bleeder screws was not turning for the life of him. So wheel 1 he sprayed with PB blaster, wheel 2 he sprayed with liquid wrench, wheel 3 he sprayed with pipe break, and the fourth wheel he got lucky and it opened with little force. He went inside after spraying down the bleeder screws made a sandwich, then came back out. The first two still wouldn't budge, the one with pipe break spun so easy like it was not even tight. So he sprayed the other two and gave them 10 minutes to soak, and sure enough they spun with ease as well.
 

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My buddy the welder always says he gets deep penetration.
 
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