Harbin Sanyong Metal Surface Technology Co., Ltd.

Home

Product Center

FuqingAnodizing of aluminum, magnesium, and titanium alloys

FuqingChemical Conversion Coatings on Aluminum, Magnesium, and Titanium Alloys

FuqingFunctional Electroplating and Chemical Plating

FuqingMicro-arc oxidation of aluminum, magnesium, and titanium alloys

FuqingFunctional anodic oxide film on aluminum alloy

FuqingPattern Formation and Selective Processing

FuqingBluing of high-alloy steels, passivation of stainless steels

E-mail:
dewokj@126.com

Consultation Hotline:
400-004-6699

Address:
No. 946, Haxi Avenue, Nangang District, Harbin City, Heilongjiang Province

Home page

FuqingChromium-free passivation film on aluminum alloy

Category:

FuqingChemical Conversion Coatings on Aluminum, Magnesium, and Titanium Alloys

Send email

Product Description

The chromium-free chemical passivation process for aluminum alloys uses tungstate salts as the oxidizing agent in the surface‑treatment formulation. The resulting chemical conversion coating offers substantial protective performance—exceeding the corrosion‑resistance requirements of MIL‑DTL‑81706 for cast aluminum alloys—along with good chemical resistance and electrical conductivity; however, it lacks self‑healing capabilities. It can serve either as an independent corrosion‑protective finish or as a primer for subsequent coatings.

Previous item

FuqingHigh-Corrosion-Resistant Trivalent Chromium Passivation Film on Aluminum Alloys

FuqingHexavalent chromium chemical oxide film on magnesium alloy

Next item

Consultation Hotline:

+86 18045023377

Email:

san_yong@sina.com

Website Development:China Enterprise Dynamics Harbin|SEO|Digital business card

Business license

Get a quote

* To receive a prompt response, please fill out the form, and our team will get back to you shortly.

COOKIES

Our website uses cookies and similar technologies to personalize the advertising shown to you and to help you get the best experience on our website. For more information, see our Privacy & Cookie Policy

COOKIES

required

These cookies are necessary for basic functions such as payment. Standard cookies cannot be turned off and do not store any of your information.

analyze

These cookies collect information, such as how many people are using our site or which pages are popular, to help us improve the customer experience. Turning these cookies off will mean we can't collect information to improve your experience.

Feature

These cookies enable the website to provide enhanced functionality and personalization. They may be set by us or by third-party providers whose services we have added to our pages. If you do not allow these cookies, some or all of these services may not function properly.

advertise

These cookies help us understand what you are interested in so that we can show you relevant advertising on other websites. Turning these cookies off will mean we are unable to show you any personalized advertising.

Request a quote now

*Note: Please ensure that all relevant information is accurately provided and keep your communication channels open. We will contact you as soon as possible.

+86 18045023377

You can receive professional sales advice within 24 hours.

san_yong@sina.com