E-glass Direct Roving is made in one manufacturing step with a special reinforcement sizing 2000 strands or 4000 strands of filaments are bonded efficiently into a single strand. The tension of each glass fiber in the strand is uniform.

Direct roving is primarily used in filament winding. Pultrusion (such as pultruded rod, pipe, tanks, etc.) and other fiberglass products (such as woven roving, chemical resistant grating, etc.).