General Purpose Fiberglass: This 4 oz fiberglass fabric is popular for a wide range of lightweight applications like laminating, reinforcing, sheathing and waterproofing. It is a flexible fabric and it wets out easily and transparently. Woven Fiberglass Fabric: This plain weave fiberglass cloth roll provides a uniform strength horizontally and vertically. It provides a smooth finish and makes a great surface fabric. Versatile Woven Fiberglass: Generally called a sailboat cloth, it is a smooth, lightweight cloth, and is often used on surfboards, sailboats, cedar strip canoes, or other applications including pool, automotive, RC, canoes or marine repairs. Compatibility: Use with epoxy, polyester, and vinyl ester resin. Dimensions: 30-yard roll (90 feet) by 50 inches wide for an area of 375 sq. ft. E glass Fiberglass Cloth: Model No. 1522. Plain weave, 6 mils thick. Great heat, fire and water resistance.