Sheet Molding Compound (SMC) is a type of composite material that has gained significant importance in various industries.

SMC is composed of a mixture of unsaturated polyester resin, chopped glass fibers, fillers, and various additives. These components are carefully formulated and mixed to create a material with specific properties and performance characteristics.

One of the key advantages of SMC is its high strength-to-weight ratio. The combination of the resin and glass fibers provides excellent mechanical strength, making it suitable for applications where strength and durability are crucial, such as automotive parts, electrical enclosures, and construction components.

SMC also offers good dimensional stability and low shrinkage during the molding process. This allows for the production of complex shapes and parts with tight tolerances, reducing the need for secondary machining or finishing operations.

In addition, SMC is a cost-effective material option as it can be processed using high-volume production methods such as compression molding, which enables efficient manufacturing and shorter cycle times.

Another notable feature of SMC is its resistance to corrosion and chemical attack, making it suitable for use in harsh environments and outdoor applications.

Application cases of SMC（Sheet Molding Compound ）

1、Automotive industry

SMC is used to manufacture exterior body panels of vehicles, such as hoods, doors, trunk lids, fenders, etc. It can also be used to produce interior

structural components like seat frames, dashboard brackets, and interior panels. Additionally, SMC is widely applied in automotive bumpers, radiator grilles, and other components.

2、Electrical industry

SMC can be used to make enclosures for distribution boxes, switch cabinets, and electricity meter boxes. These electrical equipment housings have excellent insulation properties and mechanical strength, which can protect the internal electrical components from the external environment.

3、Construction industry

SMC can be used to manufacture exterior decorative panels for buildings, roof slabs, ventilation ducts, water tanks, etc. For example, the roof slabs made of SMC are lightweight, high in strength, and have good weather resistance, making them suitable for the roof structures of various buildings.

4、Bathroom industry

SMC is commonly used to manufacture bathtubs, shower trays, wash basins, and other bathroom products. These products have smooth surfaces, water resistance, corrosion  resistance, and are easy to clean.

5、Rail transit industry

SMC can be used to manufacture the housings of communication base stations and antenna covers. It can meet the usage requirements of communication equipment in outdoor environments and has good weather resistance and electromagnetic shielding performance.

6、Medical devives

Mainly used in CT cover, MRI machine shell. It has aging resistance, high strength and long service life.