John Deere Tractors Discussion Board |
Re: Re: Phosphoric acid vs. Muriatic acid?
[ View Follow Ups ] [ Post Followup ] [ Return to Forum ]
Posted by Frank on January 12, 2002 at 09:19:29 from (152.163.201.48):
In Reply to: Re: Phosphoric acid vs. Muriatic acid? posted by Clooney on January 12, 2002 at 08:32:38:
Clooney: I first found phosphoric acid etchant at NAPA, back around 1980. I had to treat some metal that had been in a fire, and this even said for burned metal on the label. I used to use Metal Prep, but when I ran out of it a few months back, I saw a product at Discount Auto Parts called "Right Stuff De-ruster Formula #3000". It seems to me to me be a bit thicker liquid, but still sprayable/brushable. About the consistency of dish soap. Maybe it hasn't been thinned with water. I use it after sandblasting to provide the last removal of rust in the pores, and it gives a nice little phosphated look, and the parts seem to stay rust free for months on the shelf. Here in Florida I fight humidity 12 months a year. I'm experimenting with electrolysis cleaning right now, and after the bath, I spray it on, wait a bit, hose it off, and the dry the part completely. This stuff runs about 8-9 bucks a gallon, and it goes a long way. Sometimes I even put in my old paint gun and just spray it on (USE A MASK !). The side benefit that you know is that it also removes the last vestiges of silica left imbedded in the metal. Left behind those little silica nodules draw moisture and cause paint and primer to "pop". They have a website = http://www.cli-rightstuff.com I'll post the link below. I like it as well as anything else I've tries, and since it is available locally, I don't have to buy in bulk. Great for swishing old gas tanks, too. Locks up the old red rust and converts it to the stable form of iron oxide (black oxide). Here's a note I found elsewhere: Rust is really Fe2O3, a reddish form of iron oxide. Iron has another oxide, Fe3O4, which is sometimes called black oxide, black rust, or hammerscale. Black oxide is a good protection for steel. Like aluminum oxide, black oxide molecules are the same size as iron molecules, so black oxide does not grow or flake. Black oxide is true gun bluing and the oxide found on some drill bits. Black oxide is also seen on iron and steel that has been hot-worked. I strongly advise folks to stay away from Muriatic acid, as all it will do is erode the base metal, and the iron chloride residual it leaves behind can remain corrosive after the paint is applied just waiting on a scratch to find mioisture ! Hope this info helps ! Frank 70D/855 http://www.cli-rightstuff.com/3000.htm
Follow Ups:
Home
| Forums
Today's Featured Article -
Farmall 460: That's My Girl - by LeAnn R. Ralph. How many sounds can you think of that are as familiar to you as your own breathing? What about the hum of your refrigerator? Or the thump of your clothes dryer? Maybe the engine of your car? You hear those sounds every day, and you don't think much about them, do you. I can think of a few common, ordinary sounds in my daily life, too.
... [Read Article]
Latest Ad:
Super WD9.
[More Ads]
Copyright © 1997-2024 Yesterday's Tractor Co. All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V. Yesterday's Tractors - Antique Tractor HeadquartersWebsite Accessibility Policy |
|