FIBREX™ Nylon PA6+GF30 Our Nylon+GF30 glass fiber reinforced Nylon 6 Copolymer (PA6) is nothing less than an industrial-grade beast! Formulated to be exceptionally stiff and strong, all without being brittle. Polyamides (PA) are the work horse of the plastics industry the world over thanks to their excellent mechanical, chemical, and thermal resistance. The addition of heavy glass fiber reinforcement takes it to the next level. MADE IN THE USA We manufacture all of our filaments in our 68,000 ft² manufacturing facility (located in Grand Rapids, Michigan) using state-of-the-art equipment and processes. Our goal continues to be to make the most innovative filaments on the market – targeting difficult end-use applications.