Articles

In-depth reads on chemicals, industries, and export markets from the Egyptian Chemicals Hub team.

Coatings and corrosion protection · October 24, 2026

What is zinc flake coating? And why is it preferred in car screws and bolts?

Zinc foil coating is a non-electrolytic system that bonds zinc and aluminum foil in an inorganic binder and then bakes. This article explains its composition, application method, why it's suitable for high-strength parts, and when it's preferable to electroplating and hot-dip galvanizing.

Coatings and corrosion protection · October 24, 2026

Salt spray test and corrosion resistance standards for zinc laminations

How does the neutral salt spray test work according to ISO 9227 and ASTM B117, what are its limitations, and how are the requirements for zinc lamination coatings on fasteners determined according to ISO 10683? A practical guide to reading the test report and questions to ask the supplier.