Applications of Glass Fiber Mats

        Glass fiber mats are thin sheet products made by continuously or chopped strands of glass fibers randomly bonded together through chemical binders or mechanical action.
What are the application requirements for glass fiber mats?
        2.1 Hand Lay-up Molding: Hand lay-up molding is the primary method of fiberglass production in China, and glass fiber chopped strand mats, continuous mats, and stitched mats can all be used in this process. The use of stitched mats can reduce the number of layers laid and improve the efficiency of hand lay-up operations. However, stitched mats contain more chemical fiber stitching threads, making it difficult to remove bubbles, resulting in numerous needle-like bubbles in the fiberglass products and a rough, uneven surface feel. In addition, stitched mats are thick fabrics with poorer drapability compared to chopped strand mats and continuous mats. When making complex-shaped products, cavities can easily form at bends. The hand lay-up molding process requires mats with characteristics such as rapid resin impregnation rates, easy bubble removal, and good drapability. For more information, please visit the Glass Fiber Industry Network, where you will find leading glass fiber enterprises, manufacturers, and agents, offering whatever you need.
        2.2 Pultrusion: Pultrusion is one of the main applications for continuous mats and stitched mats. It is commonly used in combination with roving. Using continuous mats and stitched mats for pultrusion products can significantly improve the hoop and transverse strength of the products, preventing cracking. The pultrusion process requires mats with characteristics such as uniform fiber distribution, high tensile strength, rapid resin impregnation rates, good flexibility and mold filling capabilities, and a certain continuous length.
        2.3 RTM (Resin Transfer Molding): RTM is a closed-mold molding process consisting of two mold halves (female and male), a pressure pump, and an injection gun, without the need for a press. RTM processes typically use continuous mats and stitched mats rather than chopped strand mats. Mats are required to be easily impregnated by resin, have good air permeability, resistance to resin erosion, and good drapability.
        2.4 Filament Winding: Chopped strand mats and continuous mats are generally used in filament winding, primarily serving as the resin-rich layers of products, including the inner lining and outer surface layers. The requirements for glass fiber mats in the filament winding process are similar to those for the hand lay-up method.
        2.5 Centrifugal Casting Molding: Chopped strand mats are typically used as raw materials. The chopped strand mats are pre-laid in the mold, and then resin is added to the rotating open mold cavity, with centrifugal force used to remove bubbles and densify the product. Mats are required to have characteristics such as easy impregnation by resin and good air permeability.