SendCutSend Education

Episode 5

Custom Rust-Free G90 Sheet Metal Parts

This series was filmed and edited by Keaton Bowlby

In this episode, we’re exploring one of our go-to materials for metal fabrication: G90 galvanized steel. If you’re working on custom metal parts or a DIY project, G90 is a practical, budget-friendly solution with built-in corrosion resistance.

Here’s what we cover in this episode:

What is G90 Galvanized Steel?

  • Mild steel with a hot-dip zinc coating.
  • Zinc coating protects by sacrificing itself to corrosive elements.
  • Ideal for outdoor projects or moist environments.
  • The number (e.g., G90) represents the zinc layer’s thickness—the higher the number, the thicker the coating.

Advantages of G90 Galvanized Steel:

  • Cost-effective: Pre-coated, so no need for extra painting or powder coating.
  • Corrosion-resistant: Holds up in outdoor conditions.
  • Ready to use: Can be formed or bent without cracking.
  • Quick delivery: No post-fabrication finishing needed, saving time.

What to Watch Out For:

  • Welding caution: Releases toxic fumes; grind off the zinc and wear a respirator.
  • Surface prep for painting: Requires thorough cleaning due to its oily finish.
  • Exposed edges: Zinc still protects cut edges via sacrificial protection.

Why Choose G90?

  • Perfect for projects needing corrosion resistance and quick turnaround.
  • Used in electronics, construction, and automotive industries.
  • Customizable with bending and hardware installation.

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