Today, we are working on a new product, "Aluminum with excellent corrosion resistance (rustproofing) and paint adhesion.Alodine (chemical conversion treatment) for surface treatmentHere are some basic notes on the "What's in it for me?
What is Alodine?
What is Alodine?Aluminum with chromate treatmentandNihon Parkerizing TrademarksAlso known as al-surf treatment. Also called al-surf treatment, it is applied to aluminum materialsForms excellent corrosion resistant coatings on aluminum alloys with chemical conversion coatingsIt is a treatment. (To be precise, it is a product called "Alodine" in the "chemical conversion treatment" genre.)
What is chemical conversion treatment?
Chemical conversion treatment is a method of forming a chemical conversion coat on the aluminum surface using a chemical reaction between the treatment solution and aluminum. Alodine treatment and chromate treatment, also known as Alchrome treatment, etc,Chemical conversion coatings with excellent corrosion resistance and paint adhesion are used in a variety of applicationsThe company has been
What is chromate treatment?
Chromate treatment refers to a method of surface treatment with a treatment solution whose main ingredient is hexavalent chromic acid. Chromate treatment is also effective for aluminum and magnesium to improve the adhesion to the paint.
Types of Alodine
There are two types of alodine.
- Colorless treatment: Alodine #1000 *Trivalent
- Colored treatment: Alodine #1200 (yellowish brown) *Hexavalent
Difference in color of alodine
- For phosphate chromate: Forms a green film
- For chromate: Forms a golden color film
Purpose of alodine treatment
- Corrosion Resistance of Aluminum (Rust Prevention)
- Improved paint adhesion on aluminum (also suitable as a base coat for painting)
Difference between anodizing and alodine treatment
Alodine is different from anodized aluminum,Since there is no passive film, it is "conductive," so Alodine treatment is suitable when conductivity is required.
Conductivity and electrical resistance of alodine
Alodine 1200 can be used by varying the processing time.Adjust contact electrical resistanceThe company is able to do so.
Alodine treatment precautions
Die-cast materials need to be confirmed in advance as they may be unattached or uneven due to nest effects, etc.
About Alodine Non-Chromium
There is also a completely non-chromium alodine that maintains the same corrosion resistance and conductivity as the chromium-containing alodine treatment.
Can the alodine be reprocessed (can it be peeled off)?
Alodine film can be removed and reprocessed.
That's it.
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