Metal exterior wall panel, as it sounds, is very durable. It is composed of three layers, the metal embossed board on the outer surface, 

the thermal insulation material in the middle, and the bottom layer. 

Therefore, the use of this metal carved plate on the outer shell of the transformer 

box has high safety performance and can reduce the threat burden of operators. So what is its performance specifically good?

1. Good protection level

The protection level of metal exterior wall panels is very high, which can prevent solids with a diameter greater than one millimeter from penetrating into the interior. Outdoor rainwater will not enter the interior from any angle. This has good sealing performance, especially in coastal cities with heavy humidity. The metal exterior wall panels can maintain a good protection level and ensure that they will not be affected by rain erosion or moisture when outdoors for a long time.

2. Moisture-proof, flame-retardant and sound insulation

The metal exterior wall panel has a metal anti-corrosion panel with good chemical and physical properties. The middle interlayer is a polyurethane foam interlayer with a closed cell rate of 93%. The bottom layer is an aluminum foil cloth bottom layer. All three are waterproof and moisture-proof. There is a compact space between the panels. The concave and convex plug-in slots are installed, thus completely avoiding structural damage caused by rain, snow, freezing and thawing, dry and wet cycles and other seasons and dry and wet changes, and eliminating phenomena such as moisture seepage and moisture mold. After special treatment of metal exterior wall panels, the insulation panels have excellent fireproof and flame-retardant properties, and safety is guaranteed. The core material in the middle is a thermal insulation and sound insulation layer made of high-density polyurethane foam, and the interior is an independent closed bubble structure. This structure will have a good sound insulation effect.

3. Anti-seismic and anti-pressure

Metal exterior wall panels are a modern building material with excellent properties of high pressure resistance. They can be widely used for building exterior wall insulation and can also be used as decorative panels indoors. They are among the most affordable and high-quality building materials currently. and functional building materials. At the same time, when used in areas prone to earthquakes, it can also ensure that the building is not greatly affected by aftershocks.