What Is Non-combustible Metal Composite Panel?

Among the three major types of building curtain walls, namely glass curtain walls, metal curtain walls, and stone curtain walls, metal curtain walls are most suitable for green building requirements. New non-combustible metal composite panels are an emerging material and are widely used in large-scale interior and exterior buildings. So, today let's learn about what non-combustible metal composite panels are, what are their characteristics, and how to achieve unique buildings?

What is Metal Composite Panel?

When it comes to metal curtain walls, the first thing that comes to mind is aluminum veneer. Aluminum panels used in the architectural decoration industry are mainly divided into two categories: aluminum veneer and metal composite panel.

01. Aluminum Veneer

This refers to a building decorative material made from aluminum alloy sheet material, which undergoes chroming and other treatments, then is formed using CNC bending and other techniques, and then undergoes surface treatment. Commonly used aluminum sheet materials include wood grain transfer aluminum sheet, perforated aluminum sheet, imitation stone aluminum sheet, and mirrored aluminum sheet.

02. Metal Composite Panels

Aluminum composite panels are a general term for aluminum composite panels. These panels are formed by laminating surface-treated aluminum sheets onto various base materials through a variety of complex processing techniques. Different composite panels are formed based on the base material.

The common aluminum-plastic panel is a composite panel of aluminum and polyethylene. It not only retains the characteristics of plastic materials but also overcomes the shortcomings of plastic materials through metal materials. It has the characteristics of light weight, strong decorativeness and low cost. By filling the core material with non-combustible inorganic fillers, some products can achieve a fire rating of B1.

Additional Information:

The flame retardancy of the core material is a decisive factor in the combustion performance of curtain wall panels, and the most critical factor affecting this level of flame retardancy is its calorific value. The main reason for differences in additional grading among curtain wall panels that meet Class B requirements is that the core material's raw materials, composition, and proportions vary, resulting in different calorific values and, consequently, different flame retardant behaviors.

Aluminum-plastic panels produced using flame-retardant core materials with low calorific values not only meet the performance requirements of building curtain wall structures, but also resist rapid combustion and oxidation deformation in fires. They also significantly improve the polyethylene's tendency to soften and molten droplets when heated. Even if the core material softens, it is less likely to ignite due to the low polyethylene content and low calorific value, significantly reducing the product's fire hazard.

The price of aluminum-plastic panels increases by approximately 10 yuan per square meter depending on the grade of core material used, from standard core material to flame-retardant core material to highly flame-retardant core material. Therefore, price often drives speculation for some unscrupulous individuals! Therefore, you must carefully identify the materials when selecting them.