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Location: NC | I searched back through some old posts and found that Muriatic Acid is the best thing to neutralize the corrosion from the urine in my aluminum trailer. What I have not been able to find is the "How To" part. What rate should the Muriatic acid be diluted? Do you put it on and let it stand for a while or scrub and then rinse? Any help is appreciated. I'm spending my Memorial Day cleaning the trailer and I would like to get the floor finished before reinstalling the mats! The directions say dilute 1 pint per gallon for etching/cleaning concrete. Would I use a similar blend for the Aluminum floors?
Edited by walker 2008-05-26 2:34 PM
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Expert
Posts: 5870
   
Location: western PA | Use the acid undiluted, here's a "how to" http://www.horsetrailerworld.com/forum/thread-view.asp?threadid=8063&start=1 Gard |
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Location: NC | Thanks, that is exactly what I needed to know. I just didn't read back that far! |
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Location: georgia | I just finished rading the entire oldewr thread and it sounds as if Grad really know what he is talking about. I am going to be shopping this week for the products to do our trailers. I have one question and one comment. The comment is to set up a box fan on the open end of the trailer helping to pull out the acid fumes. My question is what product to use on stell to stop the rust process. I would think that the acid product is not correct, but I could be wrong. Thanks Mike |
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Expert
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Location: western PA | Originally written by mike and darcy on 2008-05-26 9:48 PM I just finished rading the entire oldewr thread and it sounds as if Grad really know what he is talking about. I am going to be shopping this week for the products to do our trailers. I have one question and one comment. The comment is to set up a box fan on the open end of the trailer helping to pull out the acid fumes. My question is what product to use on stell to stop the rust process. I would think that the acid product is not correct, but I could be wrong. Thanks Mike On steel, once the rust has been removed by mechanical means or blasted with various materials, you can use a rust converter before any primer or coating is applied. Some are phosphoric acid based, some are water based. They convert the rust into an oxide that stops the rust and provides a paintable surface. An etching seal/primer works well under the finish paint coats. The fan is an excellent idea Here's a link about converters http://www.horsetrailerworld.com/forum/thread-view.asp?threadid=8860 This is the same information you were previously provided, so it's nothing new. Gard
Edited by gard 2008-05-26 9:55 PM
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Veteran
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Location: TX | I used Ospho on mine. I emailed the company, and they gave me the instructions. It worked great. |
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Member
Posts: 9
Location: NC | Worked on the trailer this week. did the etching with the Muriatic acid. Apparently the "fumes" collected onthe roof and part of the tack wall area and did some minor etching. I guess I should have washed down the entire interior after finishing the job. Applied the "Dupli-Color" coating last night, about 2-3 coats over the entire floor. Looks like new in there. Thanks for all the advice! Any ideas on the roof issue and walls? I had set up a fan to blow out the fumes and still had this minor issue. |
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Expert
Posts: 5870
Location: western PA | Flush the walls and ceiling with water to completely purge any acid. That should be all you need to do. Gard
Edited by gard 2008-06-18 3:47 PM
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Location: Texas | check out acid embrittlement of aluminum- dangerous stuff |
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Expert
Posts: 5870
Location: western PA | hydrogen embrittlement. A process resulting in adecrease of the toughness or ductility of a metal due to the presence of atomic hydrogen. Hydrogen embrittlement has been recognized classically as being of two types. The first known as internal hydrogen embrittlement, occurs when the hydrogen enters molten metal which becomes supersaturated with hydrogen immediately after solidification. The second type, environmental hydrogen embrittlement, results from hydrogen being absorbed by solid metals. This can occur during elevated-temperature thermal treatments and in service during electroplating, contact with maintenance chemicals, corrosion reactions, cathodic protection, and operating in high-pressure hydrogen. In the absence of residual stress or external loading, environmental hydrogen embrittlement is manifested in various forms, such as blistering, internal cracking, hydride formation, and reduced ductility. With a tensile stress or stress-intensity factor exceeding a specific threshold, the atomic hydrogen interacts with the metal to induce subcritical crackgrowth leading to fracture. In the absence of a corrosion reaction (polarized cathodically), the usual term used is hydrogen-assisted cracking(HAC) or hydrogen stress cracking (HSC). In the prcsence of active corrosion, usually as pits or crevices (polarized anodically), the cracking is generally called stress-corrosion cracking(SCC), but should more properly be called hydrogen-assisted stress-corrosion cracking (HSCC). Thus HSC and electrochemically anodic SCC can operate separately or in combination(HSCC). In some metals, such as high-strength steels, the mechanism is believed to be all, or nearly all, HSC. The participating mechanism of HSC is not always recognized and may be evaluated under the generic heading of SCC. |
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Location: Texas | yeah, and check out acid embrittlement also |
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Expert
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Location: western PA | Hydrogen embrittlement IS the reaction of acids being applied to some metals. |
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 Expert
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Location: Home of Wild Turkey Whiskey | ............The second type, environmental hydrogen embrittlement, results from hydrogen being absorbed by solid metals. ............. contact with maintenance chemicals................ environmental hydrogen embrittlement is manifested in various forms, such as blistering, internal cracking, hydride formation, and reduced ductility. Damn Tex, that sounds just like what you were trying to explain about the bed liner problem you had in your other trailer.
Edited by HWBar 2008-06-18 7:01 PM
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Location: Texas | that's kinda what I thought, but I wasn't sure....bet we're fixing to find out |
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Location: Home of Wild Turkey Whiskey | Originally written by Tx. Vaquero on 2008-06-18 7:19 PM
that's kinda what I thought, but I wasn't sure....bet we're fixing to find out yelp,...........in about a half page description. |
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Muriatic Acid for Cleaning/etching Aluminum Floor...
