W8D902 Chromium-Free Passivation

This is a commonly used passivator for aluminum profiles and aluminum panels. It is a heavy metal-free formula system suitable for dipping, spraying, or vertical cascade rinsing.

Net Weight (TE):

26.5kg/Barre (Barrel)

1000kg/Barre (Barrel)

Performance Requirements

Powders: Type 1 and 2 powders AASS, 1000h, AASS, 2000h

Type 3 powders AASS, 2000h

Fluorocarbon Paint: NSS，4000H

Filiform Corrosion: 1000h

High-Pressure Boiling Water Test: 2h

No water washing step is needed after W8D902 Chromium-free Passivation, saving a significant amount of water resources, and ensuring stable adhesion and salt spray performance.

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COMPANY PROFILE

Painting One-Stop Solution

Focusing on the international market, we provide global customers with a one-stop comprehensive powder coating solution. Our range covers a full series of powder coatings, including polyester/epoxy hybrid, fluorocarbon, and polyurethane, accompanied by metal cleaning and rust prevention, surface pretreatment, and spraying equipment. We have established a mature technology and service system that covers the entire coating process.

13 years of experience in the painting industry

We have been awarded as a specialized, refined, unique, and innovative enterprise, a national high-tech enterprise, and a technology-based small and medium-sized enterprise. Currently, we have six major production bases in Guangdong, Shanghai, Jiangxi, Henan, Thailand, and Vietnam, establishing an integrated industrial ecosystem covering research and development, production, sales, and service.

BRAND COLLABORATIVE

PRODUCT PARAMETERS

Product Code

W8D902 Chromium-Free Passivation

Form

Liquid

Appearance

Colorless or Pale Yellow

Applicable Conditions

Spraying / Dipping

Ingredients/Elements

Phosphorus-free and nitrogen-free

Chemical Properties

Acidic

Applicable Materials

Aluminum Profiles / Aluminum Sheets

Make-Up Ratio

0.50%

Process

Chromium-free Passivation Pretreatment Process

Pre-Rinse (Optional) ——> Acid Cleaning ——> Rinse 1 ——> Rinse 2 ——> DI Water Rinse ——> Chromium-free Passivation ——> Drying

Hexavalent Chromium Passivation Pretreatment Process

Pre-Rinse (Optional) ——> Acid Cleaning ——> Rinse 1 ——> Rinse 2 ——> Hexavalent Chromium Passivation ——> Rinse ——> Drying

APPLICATION INDUSTRY

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CUSTOMIZED SERVICE

POWDER CUSTOMIZATION

Focusing on the international market, we provide global customers with a one-stop comprehensive powder coating solution.
Appearance

color (swatch number / sample), gloss (high-gloss / semi-gloss / matte / ﬂat), texture (ﬂat / sanded / wrinkled / hammered)
Performance

adhesion, hardness, impact resistance, salt spray resistance, weather resistance, chemical resistance,insulation, high temperature resistance, etc.
Substrate

Steel / Aluminum / Zinc alloy / Galvanized sheet / Stainless steel, etc. (determine pre-treatment and adhesion system)
Process

Curing temperature / time, ﬁlm thickness requirement, spraying method (manual / automatic / assembly line),recycled powder ratio.
Standard

National standard / Line standard / Enterprise standard (e.g. GB/T 1771 Salt spray, GB/T 9286 Scratch)

TO PROVIDE YOU WITH PROFESSIONAL SERVICES

We provide high cost-effective direct supply solutions for brand owners and look forward to deep cooperation with you