Zinc is silvery-gray. Plated “colors” come from passivation: clear/blue, yellow, black, olive drab—what each means.

14C28N vs D2 guide: performance matrix, real-use tips, sharpening, and copy-paste spec wording.

Zinc plating spec guide: thickness, rack vs barrel, embrittlement, cost drivers, and RFQ/PO wording templates.

Foundry vs casting vs castings explained, plus a practical foundry process overview and RFQ questions for aluminum die casting buyers.

HPDC guide to casting shrinkage: how voids/porosity/sink marks form, how to detect them, and how to prevent them.

Overview of coating systems for aluminum castings with corrosion-focused options and design tips for better performance.

Decision guide to investment casting: practical pros and cons, when to use it, and when sand or die casting is a better option.

Guide to passivation of aluminum die castings: process steps, benefits, design tips and FAQs for engineers and buyers.

Overview of aluminum alloy AlSi10Mg, its material properties, casting and AM applications, and when engineers should choose this alloy.