AUTOPHORETIC COATING PROCESS PDF

Autophoretic Coating Process is a waterborne process in which organic polymeric emulsion gets chemically deposited on the surface of a clean metal substrate. Basics of Autophoretics: Also known as autodeposition, A-coat or AP. It is a waterborne process which depends on chemical reactions between a ferrous. AUTODEPOSITION is a waterborne process which depends on chemical reactions to achieve 5 — [email protected] Chemical Coating. Stage No. 6 — Plant.

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The elimination of these stages leads to considerable savings in required floor space, energy, and operating costs, coatkng well as the total elimination of toxic metals from the process. High corrosion resistance Generally hrs.

Description of Autophoretic®

In both cases metallic bond is getting formed, but the bonding nature may not be same. This diffusion control leads to a uniform coating thickness on complex shapes and in recessed areas. The chemical reaction with the metal and the paint flows quickly as the film builds providing a self-limiting feature which results in a uniform thickness for the entire part.

A by-product of the heat-treating process No adhesive bonding materials such as tape, epoxy, etc. This is a revolutionary way to meet higher performance and corrosion resistance standards at a competitive price. However it is not with typical bath chemistry and requires some additional considerations due to the build up of zinc in coating bath.

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No compounds or lubricants containing animal fat, paraffin, detergents or silicate ingredients. Thomas Moffitt Massachusett’s Office of Technical Assistance, Boston, MA Well, you have to remember that it is an organic coating, not a metallurgically bonded electroplating. So I am very glad to join this discussion. We looked at it for replacing some heavy zinc plating on couplings and had to dismiss it because the parts are handled very roughly and will chip and rust.

If you try our search engine, I’m sure you can find some more. The coating thickness of the autodeposited film is time and temperature related. The bath viscosity is close to that of water with little or no organic solvents in the coating bath.

I just read what I autophorretic above and I am not sure why I said what I did. The line autophorehic most likely only be able to process zinc substrates and not plain steel at the same time. But now we have another process reported to offer percent advantages over competitive coatings and 0 percent disadvantages.

Considerably lower temperatures are required to cure the autodeposited parts. Typically, film thickness is controlled from 0. It’s one more tool in the arsenal, and will fill the needs some of the time; but you have to look at the actual parts and the actual service conditions. Coating may be bent back on itself with no cracking or peeling. Metal surface must be low to medium carbon, cold or hot rolled steel.

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This allows the coating dispersion to flow into and around the most complex shapes. If the condition of the received materials deviates from the above stated criteria, performance suffers significantly.

Autophoretic® Coating Process

Thanks for the help. Of course, that doesn’t mean that ALL parts will chip and rust! Not compatible with aluminum or galvanized material.

Sorry for the confusion, I have taken my forty lashes and will continue to hear about this from all those that know me. So, if you want to ajtophoretic paint, it may be a great fit. All information presented is for general reference and does not represent a professional opinion nor the policy of an author’s employer.

The continuous formation of coating provides a film with a high degree of surface protection and corrosion resistance.

The chemical reaction continues in the second layer, which results in film deposition and increased film thickness autophoretiic of solids loss to dragout. Second line has just been commissioned for heavy vehicle brake plates. Electrocoat or electrodeposition is of course a painting process which is offered by several coatings manufacturers including PPG.

Withstands nicking and marring for better handling. Initially, the deposition process is quite rapid, but slows down as the film increases in thickness.