Country
Vietnam | ENG

Residential

ZACS® STEEL -
OVER 100 YEARS FROM AUSTRALIA

INOK® Technology – A Breakthrough in superior corrosion resistance for Long-Lasting, Beautiful Roofs

INOK® Technology (short for INfinitely Outreaching Know-how) is a pioneering innovation developed, patented, and exclusively owned by BlueScope Australia. This advanced technology is fully applied across all Zacs® products in Vietnam. Featuring a unique 4-matrix phases coating system, INOK® provides superior corrosion resistance—especially at the most vulnerable points such as screw holes, cut edges, and surface scratches. Built to withstand even the toughest weather conditions, INOK® Technology protects your roof from rust and deterioration, helping it stay strong and beautiful for decades to come.

Why choose INOK® technology

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A unique 4 matrix phases alloy-coated technology

Superior corrosion resistance

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Longer warranty periods of up to 25 year*

(*) Warranty terms & conditions apply

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Superior corrosion resistance

at screw holes, cut edges, and surface scratches

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Lab & real-world tested

+5000 steel sheets

BlueScope Zacs® Product

Zacs®+ INOK® 450
Zacs®+ Hoa Cuong INOK® 450
Zacs® Ben Mau INOK® 439
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Zacs®+ INOK® 450

SUPER DURABILITY BEAUTY

Roofing & Walling

Related Project

10,000+ Homeowners choose us every year

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Sarah Tan

Jakarta

"Switching to NS BlueScope steel roofing was the best decision for our home. It’s durable, low-maintenance, and looks stunning. During the rainy season, we noticed how quiet and insulated our house became—it’s a game-changer. Plus, the lifetime warranty gives us peace of mind for years to come."

Our resources

Product Brochures

Tôn Zacs® Bền Màu INOK 439 Brochure

Tôn Zacs+ INOK® 450 Brochure

Let's Work Together

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