Power Transmission

Gear drives, bearings, motors, clutches, couplings, machine controls, sensors and components.

Salary Expectation

8 things to know about the interview question "What's your salary expectation"?

Wind Systems

Towers, turbines, gearboxes; processes for shaping and finishing component parts.

Machine Design

How-to, in-depth technical articles for machine design engineers

more free magazines

Materials

Design

Processes

Units

Formulas

Math
Glossary » Materials » Polymers » Polyester » Glass Fiber Reinforced » SMC, BMC Low Density
Glass Fiber Reinforced SMC, BMC Low Density Polyester is a subcategory of Polyester. The additative is added during the manufacturing process. Its elastic modulus ranges from 1400 to 2500 MPa. Its flexural modulus ranges from 1000 to 2500 MPa. Its tensile strength ranges from 4000 to 20000 MPa at break. Its flexural strength ranges from 10000 to 35000 MPa. Its compressive strength ranges from 15000 to 30000 MPa. Its Izod Impact strength ranges from 2.5 to 18 J/cm. Its elongation at break ranges from 2 to 5 %. Its specific gravity ranges from 1 to 1.5. Its coefficient of thermal expansion ranges from 6 to 30 x 10-6/°C. Its molding pressure ranges from 0.5 to 2 MPa.
Polyester is a thermoplastic or thermoset polycondensate. Common trade names are Valox and Celanex. It has excellent dimensional stability, high dielectric strength, and good toughness. It has moderate chemical resistance, low resistance to strong acids and bases, and is notch sensitive. However, it is not recommended for outdoor use or in hot water. Polyester is very popular in making clothing and handles.
Additional Information
Other common Polyester include Rigid Polyester, Flexible Polyester, Glass Fiber Reinforced High Polyester, Glass Fiber Reinforced, Unidirectional Glass Polyester, Glass Fiber Reinforced, Preformed Chopped Roving Polyester, Glass Fiber Reinforced, Premix Chopped Glass Polyester, Glass Fiber Reinforced, Woven Cloth Polyester, Glass Fiber Reinforced SMC Polyester, Glass Fiber Reinforced SMC Low Pressure Polyester, Glass Fiber Reinforced SMC Low Shrink Polyester, Glass Fiber Reinforced BMC, TMC Polyester, EMI Shielding (conductive), SMC & TMC Polyester, EMI Shielding (conductive), BMC Polyester, and 50% Glass Fiber Reinforced High Strength SMC Polyester.
Related Pages