10 Alodine Treatment Manufacturers in 2024
This section provides an overview for alodine treatments as well as their applications and principles. Also, please take a look at the list of 10 alodine treatment manufacturers and their company rankings. Here are the top-ranked alodine treatment companies as of April, 2024: 1.Best Technology Inc., 2.Electroless Hard Coat, S.A., 3.CREATINGWAY TECHNOLOGY HK LIMITED.
Table of Contents
What Is an Alodine Treatment?
Alodine treatment is a chromate treatment used for the surface preparation of aluminum materials.
Alodine is a trademark registered by Nippon Parkerizing, and the alodine process was initially developed by Amchem Products in the United States. Alodine treatment, also known as al-surf treatment, is a conversion treatment applied to aluminum materials.
This treatment forms an excellent corrosion-resistant coating on aluminum and its alloys. One of the key features of Alodine is its electrical conductivity, which sets it apart from general anodized aluminum.
However, due to the presence of hexavalent chromium, known as an environmental pollutant, alternative processes like trivalent chromium conversion coatings, non-chromium alodine, and palcoat treatments have been developed in recent years.
Uses of Alodine Treatments
Alodine treatment is utilized for various applications, including:
- Heat sinks (electronic devices)
- Equipment parts
- Automotive parts (for weight reduction)
- Aluminum alloys in general
- Aircraft parts
It can be applied to complex-shaped products, forming a thin film on the surface through a chemical reaction. The color of the coating can be adjusted depending on the chemicals used, with colorless-type (#1000) and yellow-type (#1200) being common choices. Alodine treatment is highly effective for aluminum materials intended to conduct electricity and serves as a valuable primer for paints, enhancing adhesion between aluminum and paint.
Principle of Alodine Treatments
Alodine treatment is a chromate treatment that involves applying a treatment solution containing primarily phosphoric acid, chromic acid, or dichromic acid to the surface of aluminum. While it is an effective surface treatment, it contains hexavalent chromium, prompting the development of more environmentally friendly alternatives.
Two common methods are:
- Phosphate Chromate (using phosphoric acid): Forms a relatively thick green film.
- Chromic Acid Chromate (using chromic acid): Produces a thin, golden-colored film.
Alodine treatment is known for its ability to produce highly corrosion-resistant coatings under relatively simple conditions. The process is typically conducted at room temperature and does not require electricity. The treatment is completed within minutes and includes steps such as degreasing, rust removal, cleaning, surface conditioning, film formation, hot water rinsing, and drying.
Keeping the surface clean before coating is crucial for achieving optimal performance. Additionally, the contact electrical resistance of Alodine (#1200) can be adjusted by varying the treatment time.
Other Information on Alodine Treatment
1. Difference Between Alodine Treatment and Anodizing
Aside from alodine treatment, which involves chromating to create a chemical conversion coat containing hexavalent chromium, there is another process called anodizing, which generates an anodic oxide film on the aluminum surface. The oxide film formed by anodizing is highly corrosion-resistant.
Aluminum is prone to corrosion and discoloration due to its high ionization tendency, making it susceptible to chemical reactions with water, oxygen, and various other substances. Anodizing effectively addresses this issue.
Furthermore, anodizing allows for a wide range of color options by introducing dyes into the microscopic pores within the anodized film. In contrast, the oxide film produced by alodine treatment is very thin, typically ranging from 0.1 to 0.3 microns, and offers lower corrosion and wear resistance compared to the anodic oxide film created through anodizing.
Alodine treatment, however, does not involve electrolytic processes, and the treatment time is relatively short. Therefore, it is widely employed to protect items that do not require high levels of corrosion or wear resistance.
2. Chemical and Electropolishing Before Aluminum Surface Treatment
Before applying surface treatments to aluminum, chemical, and electropolishing processes are often used as pretreatment steps to achieve a smooth surface by melting protrusions on uneven metal surfaces.
Chemical polishing involves immersing aluminum in a polishing solution to chemically polish the metal surface. Electropolishing, on the other hand, uses an electrolytic process in a polishing solution to achieve metal surface polishing. Before chemical or electropolishing, the aluminum surface can be intentionally roughened through methods like sandblasting to attain a shiny and smooth surface.
List of 10 Alodine Treatment Manufacturers
*Including some distributors, etc.
Sort by Features
- Default
- Company Size: largest first
- Year Founded: oldest first
- Year Founded: earliest first
Sort by Area
- United States of America
- China
- Italy
- Spain
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Best Technology Inc.
Alodine Surface Finishing
Manufacturer Overview
Best Technology Inc., founded in 1992 with headquarters in the USA, is a manufacturer of industrial cleaning, passivation, and finishing systems. The company's aqueous cleaning alternatives to solvents include industrial parts washers, electropolishing machines, ultrasonic benchtop parts cleaners, ultrasonic vapor degreasing machines, and engineered cleaning fluids used in various industries, including the medical, aerospace, electronics, automotive, and semiconductor markets. Examples of Best Technologies product applications include medical device sterilization and environmentally and operator-friendly degreasing machines used to clean airplane engines.
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Aerospace Defense Coatings of Georgia
Alodine
Company Overview
Aerospace Defense Coatings of Georgia, founded in 1992, is an industrial manufacturing company that provides thermal spray, plasma, and thermal barrier coating services, located in Altamonte Springs, Florida. The company specializing in metal finishing, testing, and painting services and serves a diverse range of clients. It ensures the clients satisfaction and quality standards by being in the forefront of technological advances in the alodine, chemical film, anodizing and plating industry. Its state-of-the-art $2 million waste prevention system also ensures all hazardous waste materials are 100% recycled and rendered harmless to protect the environment.
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Capps Manufacturing, Inc.
Alodine
Company Overview
Capps Manufacturing, Inc., established in 1952, supplies aviation detail parts, components, and assemblies, with its headquarters in Kansas, United States. Capps can internally produce a wide range of parts and tooling necessary for the assembly process. These components encompass several aspects of manufacturing processes, such as tool design, computer numerical control (CNC) programming, heat treatment, stretch forming of skins and forms, hydroforming of parts, brake forming of parts, punch press stamping, and the production of formed parts using 3-Axis and 5-Axis machining techniques.
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GREEN COAT Advanced Coating Technologies
Alodine
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Pro-Lean Technology Co., Ltd.
Alodine
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Alodine Treatment Manufacturer Ranking
*Including some distributors, etc.Ranking as of April 2024
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | Best Technology Inc. |
33.3%
|
| 2 | Electroless Hard Coat, S.A. |
16.7%
|
| 3 | CREATINGWAY TECHNOLOGY HK LIMITED |
16.7%
|
| 4 | Capps Manufacturing, Inc. |
16.7%
|
| 5 | Aerospace Defense Coatings of Georgia |
16.7%
|
Derivation Method
The ranking is calculated based on the click share within the alodine treatment page as of April 2024. Click share is defined as the total number of clicks for all companies during the period divided by the number of clicks for each company.Number of Employees
Newly Established Company
- Worthy Hardware Co.,ltd: 1998 (26 years ago)
- Cromatura Moderna: 1995 (29 years ago)
- Capps Manufacturing, Inc.: 1993 (31 years ago)
Company with a History
- Best Technology Inc.: 1992 (32 years ago)
- Capps Manufacturing, Inc.: 1993 (31 years ago)
- Cromatura Moderna: 1995 (29 years ago)
Alodine Treatment Manufacturers in United States
*Including some distributors, etc.
- Best Technology Inc.
- Aerospace Defense Coatings of Georgia
- Capps Manufacturing, Inc.
- Northern Indiana Anodize
Global Distribution of Alodine Treatment Manufacturers by Country
*Including some distributors, etc.
| Country | Number of Companies | Share (%) |
|---|---|---|
United States of America
|
4 | 50.0% |
China
|
2 | 25.0% |
Italy
|
1 | 12.5% |
Spain
|
1 | 12.5% |
