Yes, fiberglass chopped strand can be used in automotive spoilers. It is a commonly used material due to its high strength, lightweight properties, and ability to be easily molded into complex shapes. Fiberglass chopped strand is ideal for automotive spoilers as it provides structural integrity and aerodynamic performance.

The length of fiberglass chopped strand can significantly affect its properties. Shorter lengths tend to enhance the strength and stiffness of the material, making it more suitable for applications that require high mechanical performance. On the other hand, longer lengths promote better impact resistance and improve the material's ability to disperse stress, making it ideal for applications that require toughness and durability. Ultimately, the choice of fiber length depends on the specific requirements of the intended application.

The cost of fiberglass chopped strand is relatively lower compared to other reinforcements, such as carbon fiber or Kevlar.

When designing with fiberglass chopped strand, there are several key considerations to keep in mind. Firstly, it is important to understand the specific application and performance requirements. This includes factors such as the desired strength, stiffness, and durability of the final product. Secondly, the weight and thickness of the fiberglass chopped strand should be considered, as it can have implications for the overall weight and cost of the design. Next, the compatibility of the fiberglass chopped strand with other materials and manufacturing processes should be evaluated. This ensures that the design can be easily integrated into the production process and that any potential issues or limitations are addressed. Additionally, the selection of the appropriate resin system and the method of fiber placement are crucial considerations. The resin system should be compatible with the chopped strand and should provide the desired mechanical properties. The method of fiber placement, such as hand lay-up or spray-up, should be chosen based on the complexity of the design and the desired level of control over fiber orientation. Lastly, it is important to consider the cost-effectiveness of the design. This includes evaluating the availability and cost of the fiberglass chopped strand, as well as the overall manufacturing and assembly costs. By considering these key factors, designers can optimize the use of fiberglass chopped strand in their designs, ensuring that the final product meets the required performance criteria while being cost-effective and manufacturable.