FRP molding is the process of forming FRP products from a mold. Several FRP molding processes exist, each with its own advantages and drawbacks. The right process for a given application depends on factors like the product’s shape and size, its desired properties, and production volume.
Here are some of the most common FRP molding processes:
Hand lay-up: the simplest, most basic process — manually placing layers of fiberglass reinforcement and resin into a mold. A good choice for small, simple products or prototypes.
Hand layup FRP molding
Compression molding: places fiberglass reinforcement and resin into a heated mold, then applies pressure. A good choice for complex shapes or products needing high strength and stiffness.
Compression molding FRP molding
Vacuum infusion molding: places fiberglass reinforcement into a mold, vacuums out the air, then injects resin under pressure. Also a good choice for complex shapes or products needing high strength and stiffness.
Vacuum infusion molding FRP molding
Pultrusion: pulls fiberglass reinforcement through a resin bath, where it cures into a continuous, reinforced composite. A good choice for long, thin products like pipes and rods.
Pultrusion FRP molding
Factors to Consider When Choosing an FRP Molding Process
Shape and size of the product: some processes suit certain shapes and sizes better than others — hand lay-up works well for small, simple products, while compression molding suits complex shapes.
Desired properties of the product: some processes deliver specific properties, like high strength, stiffness, or corrosion resistance — vacuum infusion molding, for example, can produce products with high strength and stiffness.
Volume of production: some processes are more efficient for high-volume production — pultrusion, for instance, suits high-volume production of long, thin products well.
Guangdong Haikuo can help you choose the right FRP molding process for your application. We have extensive experience across a variety of FRP molding processes and can help you select the one that best fits your needs.