What type of material is typically used in the manufacture of woven roving?

Woven roving is a type of reinforcement material commonly used in composite manufacturing, and it is primarily made from continuous strands of fiberglass. The structure of woven roving consists of multiple layers of these fiberglass strands woven together, which provides significant strength and durability to the composite when combined with a resin system.

Continuous strands of fiberglass are particularly effective in applications that require high tensile strength and impact resistance, as well as the ability to withstand various environmental conditions. This makes them suitable for use in marine applications, automotive components, and other areas where high-performance materials are essential.

In contrast, aluminum fibers, polyester fibers, and natural fibers like cotton do not possess the same mechanical properties or suitability for composite reinforcement as fiberglass strands. Each of these materials serves different purposes in various applications but lacks the specific qualities that make continuous strands of fiberglass the preferred choice for woven roving in composite manufacturing.