the long-fiber-blended shaped product has higher homogeneity and more straightness than the short-fiber-blended molded product, and the long-fiber has a significantly stronger effect than the short-fiber. As an exciting area of growth for thermoplastics, LFT composites are widely accepted as a viable alternative to traditional reinforced thermoplastics and metals for a variety of applications.
link:http://www.lfrt-plastic.com/long-glass-fiber-pbt/long-glass-fiber-compound-pbt.html