What are the characteristics of Sheet Moulding Compounds?

• 1.  Has excellent electrical insulation properties. It can maintain good dielectric properties at high frequencies; free from electromagnetic effects, and does not reflect electromagnetic waves.
• 2.  Chemical corrosion resistance. The sheet moulding compound is a reinforced polyester material with good corrosion resistance characteristics such as acid, dilute alkali organic solvents and seawater. In contrast, metal materials cannot do this.
• 3.  Light weight and high strength. The specific modulus is equivalent to steel's, but the strength can reach four times that of steel. However, the typical 25% weight reduction achieved at similar strength to steel is the main benefit.
• 4.  Long service life. A simulated aging test shows that their service life is more than 20 years, exceeding traditional materials such as metals.
• 5.  SMC moulded parts have an accurate dimension, excellent finish surface, and modification cost is low.
• 6.  Excellent Cosmetic Finish: Composites can be designed with a high level of surface detail. Parts can be offered in various thicknesses either coated with high gloss gel coats or with a paintable surface.