[TowerTalk] Loosening Rusted Hardware

[David Robbins]

wd-40 was developed for protecting the outer skin of the Atlas ICBM from corrosion.  it does provide a protective film that remains even in high temperatures.
the wd stands for water displacer, 40 is just the batch number from the test lab that satisfied the military requirements to coat the missile over a wide
temperature range.  it was not designed to remove or break rusted joints, though it does penetrate fairly well and does provide some lubrication it doesn't have the rust
busting and penetrant power of fluids designed for that job.


Apr 13, 2015 12:15:37 AM, K8RI-on-TowerTalk at tm.net wrote:

It just says <25. What is the volatility of that Hydrocarbon?

Spray it on a flat surface and leave it out in the sun all day. How 
much film is left?
I have never seen it remove corrosion other than a film of surface rust 
that can be wiped off. , nor will it prevent steel from rusting on an 
antenna. Spray some steel U-bolts, and just hang them on a tower. How 
many days before they show signs of rust. I recently rebuilt a damaged 
antenna. About half the nuts twisted off the threaded portion. WD40 
didn't help. PB-Blaster did

73

Roger (K8RI)

4/12/2015 10:15 PM, john at kk9a.com wrote:
> WD40 contains petroleum oil:
> http://www.wd40company.com/files/pdf/msds-wd494716385.pdf
>
> John KK9A
>
>
> To: towertalk at contesting.com
> Subject: Re: [TowerTalk] Loosening Rusted Hardware
> From: "Roger (K8RI) on TT" 
> Date: Sun, 12 Apr 2015 19:29:05 -0400
>
> I've often wondered why WD40 became associated with a rust buster/penetrate.
> It does penetrate, but contains no lubricant and evaporates relatively quick
> leaving thing as they were before the application. However, it is good for
> freeing up small engines that have seized. Pull the plug, squirt in about a
> tablespoons worth and let set over night.
> Bur, rusted bolts, not so much.
>
> 73
>
> Roger (K8RI)
>
> _______________________________________________
>
>
>
> _______________________________________________
> TowerTalk mailing list
> TowerTalk at contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk


-- 

73

Roger (K8RI)


---
This email has been checked for viruses by Avast antivirus software.
http://www.avast.com


_______________________________________________



_______________________________________________
TowerTalk mailing list
TowerTalk at contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk