Kos Pelapisan Corten Setiap M2

Kos Pelapisan Corten Setiap M2

The rust on Corten steel cladding does not continuously fall off. While there may be some loose rust during the early oxidation stage, it eventually forms a stabil, tightly bonded patina. This is the key feature that gives Corten steel its long-lasting durability and low maintenance, making it a reliable choice for exterior cladding applications.

kategori: Keluli Corten

Penerangan

Apabila menilai Corten steel cladding, one common concern is whether the rust layer will fall off or stain surrounding areas. The answer depends on the stage of oxidation and environmental conditions.

Does Corten Steel Rust Fall Off?

Short Answer

Peringkat awal: ya, some loose rust may appear and can wash off
Peringkat stabil: Tidak, the rust layer becomes dense and firmly bonded, dan tidak mengelupas

Why Rust Behavior Changes

1. Early Oxidation Stage

When Corten steel is newly installed:

Lapisan karat adalah loose and porous
Rainwater may carry rust particles, causing runoff stains
Surface color is bright orange and uneven

This stage is temporary and part of the natural weathering process.

2. Patina Formation Stage

Apabila pendedahan berterusan:

Unsur aloi seperti Cu, Cr, dan Ni modify the rust structure
The oxide layer becomes padat dan patuh
The surface transitions to reddish-brown

At this point, the rust layer acts as a penghalang pelindung.

3. Stable Stage

After full weathering:

Rust is firmly attached to the steel surface
No flaking or peeling like ordinary carbon steel
Minimal or no runoff under normal conditions

Comparison with Ordinary Steel

Aspek	Keluli Corten	Ordinary Steel
Rust structure	Padat dan stabil	Longgar dan menggelupas
Lekatan	kuat	Weak
Flaking	Minimal after stabilization	Berterusan
Perlindungan	Self-protecting	Corrosion continues