Built to Last
The Difference: Hot‑Dip Galvanizing & Duplex Systems
See why our hot‑dip galvanized under powder coat process outlasts pre‑galv and how duplex systems deliver a stunning, long‑life finish.
Why HDG Outperforms Pre‑Galv
Full immersion in molten zinc forms a metallurgical bond and uniform coating thickness. That means superior abrasion resistance and true 360° corrosion protection.
- Thicker zinc layer—often 3–5× the life of thin mill coatings.
- 100% coverage—edges, welds, corners, and inside tubing.
- Self‑healing cathodic protection—guards steel if coating is damaged.
- Predictable lifespan—decades before first maintenance in real-world conditions.
Duplex Systems: Beauty Meets Brawn
A properly prepared HDG surface lets powder coat bond brilliantly. Together they deliver barrier + sacrificial protection—and a premium finish that lasts.
- 1.5–2× service life vs HDG alone with proper prep and specifications.
- Color & finish options without sacrificing performance.
- Lower life‑cycle cost thanks to delayed maintenance cycles.
- Great for high‑profile installs where longevity and looks both matter.
Typical Coating Thickness & Expected Life
| Coating Type | Typical Zinc Thickness | Expected Life to First Maintenance* |
|---|---|---|
| Pre‑galvanized (sheet/mill) | ~20–30 µm | Single‑digit to low‑teens years in marine/industrial |
| Hot‑Dip Galvanized (ISO 1461) | 45–85 µm | Multiple decades; 50–100+ years in rural/suburban |
| HDG + Powder Coat (Duplex) | HDG base + 60–100 µm organic | 1.5–2× HDG alone with proper prep |
