Technical resource on zinc sealing, dehydrogenation and fastener corrosion WeChat magnet-01　·　info@guass8.com
Zinc Sealing & Corrosion ProtectionTECHNICAL RESOURCE
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An independent technical resource, not a product catalogue

This site exists to answer one kind of question: a coated part failed, and someone needs to know which process step to look at first.

What we write about

Zinc and zinc-alloy coatings on fasteners and small components: passivation, sealing, dehydrogenation, salt-spray testing, friction and assembly, bath operation and cost. The scope stops at the coating line — we do not cover plating equipment design, effluent treatment or line layout.

How the content is built

  • Parameters are quoted from the product technical datasheet, with the document version named.
  • Where a value is not published, the text says "not published" rather than estimating it.
  • Standards are referenced by number (GB/T 10125, ISO 9227, ASTM B117, ISO 16047, ISO 9223).
  • Products are described by the problem they are designed for. We do not rank suppliers.
  • No salt-spray hours are promised for a customer's part. The number depends on the part.

What we do not do

We do not sell chemicals, quote prices, sign contracts or handle goods and invoices. Technical enquiries that need product supply are forwarded to the manufacturer or its authorised channel, with the enquirer's consent.

Who this is for

Plating shop process engineers, fastener manufacturers, automotive tier suppliers, and quality engineers who have to close a corrective action.

Languages

Full content in Chinese and English. The two versions are maintained together; the language switch is in the header.

Images

Photographs show typical appearance states of coated fasteners and housings. They are appearance references, not test reports, and are labelled as such.

Contact

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Email info@guass8.com
Reply within 24 hours on business days.

Ask a technical question

Describe the defect, the coating system and the process route. We will tell you which checks to run first.

Technical enquiry
Disclaimer: this is an independent technical resource. Parameters are quoted from published product datasheets (TDS) with sources named, and are not extrapolated. Results vary with substrate, coating thickness, passivation system and equipment; validate any process change on a small batch first. We do not provide product quotations or sell chemicals.