Why can colored mirrors maintain color stability for a long time?

2025-07-02 08:55:17

Key factors for long-term color stability of colored mirrors

The color stability of colored mirrors depends on three technical guarantees: material selection, coating process, and environmental protection, ensuring that they remain colorfast in complex environments.

1、 High performance coating materials

Using metal oxides (such as TiO ₂, Cr ₂ O3) or nitrides (such as TiN) as coating layers, their chemical inertness can resist UV oxidation and humidity erosion, and the color difference change rate can be controlled within Δ E<1.5 (10-year standard).

2、 Multi layer composite coating technology

By using magnetron sputtering or ion plating processes to stack 7-15 layers of thin films, each layer's thickness is precise to the nanometer level (± 2nm), and the interlayer interface bonding force is ≥ 50MPa to avoid color distortion caused by delamination.

3、 Surface protection treatment

The outer layer of the coating is covered with SiO ₂ or fluorocarbon resin protective layer (thickness 0.5-2 μ m), with a wear resistance of 8H pencil hardness and a UV reflectivity of>90%, effectively delaying photodegradation.

Summary: From material weather resistance to coating structure optimization, combined with surface protection, colored mirrors can achieve color stability of over 20 years (Δ E<3).

Tinted/Coated Color Mirror

Thickness: 1mm, 1.5mm, 2mm, 2.5mm,3mm, 4mm, 5mm, 6mm.

Size: 1830x2440mm, 1650x2140mm,1500x2000mm 2140x3300/3660mm etc.

Color: Bronze, Pink, Rich Yellow, Crystal,Yellow, Gold.

More product details:

https://longboglass.com/product/asdfdsaf.html