6 Oz E-Glass Woven Roving50 Inch x 12 Feet (4 Yard)It is compatible with epoxy, vinyl ester, and polyester resin systems.0.2 mm Thick Plain Weave fiberglass clothGreat for applications in Boats, Automotives, Tubs, Pools, Surfboards, and more Fiberglass Woven Roving Cloth 6 oz, Plain Weave 50" x 12 ft./4 yd. Long for Boat & Pool Repair Weight:6 Oz. / Sq. Yard (200 gsm)Width:50 InchLength:12 Feet (4 Yards) Fiber glass woven roving cloth is made from continues E-Glass Roving’s that are loosely woven into a heavy fabric. They are suited for application in boats, pools, crafts etc. and are compatible with polyester and Epoxy resin systems. It is a Plain Weave, E-glass Fiberglass Woven Roving Cloth for repair, maintenance & waterproofing applications. It is compatible with epoxy and polyester resin systems. High Tensile Strength Fiberglass cloth is one of the strongest textile fibers, having greater specific tensile strength than steel wire of the same diameter, at a lower weight. Dimensional Stability Fiberglass cloth has low elongation under load, generally 3% or less. Glass fibers produce fabrics with excellent dimensional stability under various types of conditions. High Heat Resistance Fiberglass cloth has excellent heat resistance at relatively low cost. Fire Resistance Fiberglass cloth is composed of inorganic materials, and are non-combustible, a natural choice where flammability is of concern. Good Thermal Conductivity The rapid heat dissipation of fiberglass cloth is particularly important in electrical insulation applications. Good Chemical Resistance Like glass itself, fiberglass cloth is highly resistant to attack by most chemicals. Outstanding Electrical Properties Fiberglass fabric withstands high temperature and has low moisture regain. Along with its high dielectric strength and low dielectric constant, glass is of major importance and usefulness in the electronics. Durability Being inert, fiberglass cloth is unaffected by sunlight, fungus or bacteria.