Glass fiber stitched fabric, also known as knitted felt or woven felt, is different from ordinary fabrics and felt in common sense. The most typical stitch knitted fabric is that a layer of warp and a layer of weft are overlapped together, and the warp and weft are knitted together to form a fabric by sewing.

The advantages of stitched fabrics are as follows:

① It can increase the ultimate tensile strength, delamination strength and bending strength of FRP laminates under tension;

② Reduce the weight of FRP products;

③ The surface of FRP is smooth;

④ Simplify hand paste operation and improve labor productivity. The reinforced material can be used instead of continuous strand mat in pultrusion FRP and RTM