Die-Casting Aluminum

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TOP-ADD process

for

Die-Casting Aluminum


Okuno-Auromex provides “TOP ADD” processes specifically designed for cast and die-casting aluminum that contain high silicate.

This “system” covers a full range of process chemicals from surface cleaning to sealing. It is capable of providing uniform dyed films on difficult to dye alloys such as high silicate aluminum. “TOP ADD-500” is utilized for black color applications.


The table below provides additional product information.

Process

Product

Feature

Cleaning

TOP ADD-100

Cleaner for high silicate type aluminum alloys. Has excellent cleaning power that can remove cutting oil and lubricant.

Activating

TOP ADD-200

Activator for high silicate type aluminum alloys. Provide excellent bright polished surface and improve dyeing affinity.

Desmutting

TOP ADD-320

Desmutting agent for high silicate type aluminum alloys. Activate whole surface and remove smut from TOP ADD-200 treatment in short time.

Corrosion inhibition

TOP ADD-400

Corrosion inhibitor. Prevent corrosion of activated surface in the rinsing bath after desmutting treatment.

Anodizing

Dyeing

TOP ADD-500

Dyeing agent for high silicate type aluminum. Provide uniform black appearance that give excellent light fastness and heat resistance.

Sealing Process

Application

Product

Feature

Nickel acetate type sealing agents

TOP Seal DX-200

Powdery sealing agent. Provide good sealing effect with short time operation.

TOP Seal DX-500

Powdery sealing agent. Provide smooth surface that is suitable for sealing of cosmetic caps.

TOP Seal E-125

Liquid sealing agent. Completely prevent white powdery bloom or irregular color.

TOP Seal H-298

Liquid sealing agent. Provide superior sealing effect. Suitable for aluminum alloys, such as Al6063.

Additive for boiling sealing

TOP Seal E-110

Nickel-free liquid additive. Completely prevent white powdery bloom and rainbow appearance at hot sealing process.

TOP Seal MF-115

Nickel-free liquid additive. The sealing performance is the same as nickel sealing.

TOP Seal L-100

Powdery cold sealing agent. Can be applied at room temperature. Suitable for sealing of architectural materials or hard anodizing film.


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