Nobody doubts nowadays about the great advantages of composites and their increasing demand in the last decades. What was only present in specially demanding technology applications like aerospace, appears to be today a promising alternative to materials used in different industrial sectors. Automotive industry is by far the largest market for composites. Weight reduction is the greatest advantage of composite materials usage. Composites are often the material of choice in corrosive environments like chemical processing plants. Fiber reinforced composites are also replacing many traditional materials for home and architectural components like doors, wall panels and frames. Composite materials offer windmills constructors strength and flexibility through manufacturing processes with the added benefit of lightweight components. Industrial sectors like sport and recreation, marine, energy and finally, electronics, choose composites thanks to their arc and track resistance.