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topic 071

Remove salt from steel surfaces, chrome wheel rims



A discussion started in 1995 & continuing through 2015

(1995)

Q. We are presently blast cleaning and lining petrochemical tanks at a coastal location. The steel has an extremely high chloride contamination which must be reduced to less than 200 mg per square meter. We have environmental control on site to avoid further contamination, but find it difficult to get down to the required levels with only blasting.

1. Has any one experience in this field?

2. Any suggestions for chemical pretreatment?

Thanks for a very enlightening home page.

Kind Regards,

Abe Chalef
Internet Africa


(1995)

A. The only way to remove the salt of the steel surface, is to steam clean it first, using an alkaline cleaner. You must do this before the blasting because the blasting will only disperse the salt across the surface. Good luck with your project.

MF DeKeizer
The Netherlands


January 21, 2008

A. You can wash using CHLOR*rid detergent

Mohamed Elsayed
- Alexandria, Egypt


Salt-Away

thumbs up signThanks, Mohamed! If readers have difficulty finding that product, there are a number of other brand names of detergents designed to remove salt. We don't compare different brands here, but those other trade names include "Starbrite Salt-Off" "CRC Salt Terminator", Salt- Away", =>
Salt-X and Supreme Marine Salt Remover. Good luck.

Ted Mooney, finishing.com Teds signature
Ted Mooney, P.E. RET
finishing.com
Pine Beach, New Jersey



To minimize searching and offer multiple viewpoints, we've combined multiple threads into the dialog you're viewing. Please forgive any resultant repetition or failures of chronological order.



(2002)

Q. I NEED TO KNOW WHAT THE BEST PRODUCT(S) WOULD BE TO SPRAY AND RINSE SALT WATER OFF ALUMINUM WITHOUT IT DRYING CORRODED OR REMOVING FINISHES.

JEFF JENKEL
- SAN DIEGO, California


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Uh, fresh water?

Ted Mooney, finishing.com
Teds signature
Ted Mooney, P.E. RET
finishing.com
Pine Beach, New Jersey


After Ted's very long, highly accurate and detailed response, here is a much shorter response.

RAIN

Freeman Newton
Freeman Newton
White Rock, British Columbia, Canada


I can top that... H2O

Marc Green
Marc Green with Rusty
anodizer - Boise, Idaho


(expletive deleted), Marc Green's (expletive deleted) dawg has gone and done it again.

Well done, Fido!

Freeman Newton
Freeman Newton
White Rock, British Columbia, Canada


Yeah...too bad he can't play hockey too...the Blues could have used him!

Marc Green
Marc Green
anodizer - Boise, Idaho


A. Water is not very good at rinsing salt except in a pure (table salt) form. Try a product called "Salt-x" available in boating stores and catalogs.

Todd Osmolski
- Charlotte, North Carolina, USA


Hmmmm...me thinks you are correct, Todd...perhaps I should have said WARM/HOT H20.

Marc Green
Marc Green
anodizer - Boise, Idaho


 

What Todd said sounds interesting.

I wonder if that Salt X product contains a super wetting agent such as TSP (trisodium phosphate [linked by editor to product info at Amazon])?

And as far as Marc is concerned, I'm crying great clouds of tears for the St. Louis Blues (aptly named, too, coming to think of it). Cheer up Marc! They'll win a game ONE of these days.

Freeman Newton
Freeman Newton
White Rock, British Columbia, Canada
... the original home of HOCKEY, by the way!

(2006)

A. In response to the comment that warm water and hot water will remove the salt from you equipment. WRONG it will not I am an employee of Innovative Chemicals and I have seen hundreds of tests and photos to show proof that this is a myth that is BUSTED. By using Salt-X you extend the life of all your boating and fishing equipment. So for the people that have been using Salt-X thank you and for the people that have not I recommend that you go out and buy some for yourself and see the proof.
Thank you

James Helms
- Topsail Beach North Carolina



How to protect chrome plating from salt corrosion

(2007)

Q. Hello
Salt from the road in the winter used to stop the roads icing up gets trapped in some chrome plated parts on my motorcycle I also live near the sea . The chrome parts where salt is trapped; e.g., weld seams in exhausts quickly rust if not cleaned regularly. Is there anything I can do to stop this?
Regards,

Dave White
student - England


(2007)

A. Hi Dave. Sorry, but you will not improve chrome plating with a topcoat, and most topcoats won't stick anyway. Regular waxing is the best approach as the wax will get down into the microscopic cracks and help seal them.

OEM quality chrome is very durable as you can see from truck bumpers, and car bumpers from the 80's that last for decades, and the OEM parts on a Harley. Unfortunately, aftermarket components often have very poor chrome plating -- and poor chrome plating is worthless. Please see our "Introduction to Chrome Plating" for an understanding of why low quality chrome plating is worse than nothing.

But salt is soluble and can be largely washed away with a high volume of water from a hose or pressure washer. If high volumes of water aren't practical, there are de-salting products that promise to remove it. Good luck.

Ted Mooney, finishing.com
Teds signature
Ted Mooney, P.E. RET
finishing.com
Pine Beach, New Jersey



How to calculate chloride content on hot rolled pickled sheet surface of steel?

January 21, 2013

Q.
I am searching for a chemical / laboratory procedure through which I can determine the chloride content on hot rolled pickled sheet surface of surface.
Please guide me if you know any procedure through which the chloride content can be calculated on a steel sheet.

Akhtar Hussain
- Karachi


January 21, 2013

A. Hi Akhtar.

I know that CHLOR*rid offers 4 or 5 different types of kits for testing the salt concentrations in different scenarios. There are several other commercial manufacturers of salt remover compounds like "Salt-x", "Salt-away", etc., who claim that their compounds will quickly remove salt completely. Surely they offer test procedures purporting to prove it, so you might try contacting them for a method. Good luck. :-)

Regards,

Ted Mooney, finishing.com
Teds signature
Ted Mooney, P.E. RET
finishing.com
Pine Beach, New Jersey


January 29, 2013

A. Wash the sample with 2 - 3 portions of warm nitric acid. Combine the washes, then determine Cl- by AgNO3 gravimetry.

dave wichern
Dave Wichern
Consultant - The Bronx, New York



Do de-salting products strip zinc plating?

November 30, 2015

Q. Has anyone had any experience of de-salting products, like "Salt-Away" stripping zinc plating?

Paul Wermers
B-117 corrosion chamber grunt - Spillville, Iowa, USA



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