Fiberglass Reinforced Plastic Equipment Covers Composites USA equipment covers are designed and manufactured for rugged industrial use where contact with aggressive chemicals might be a concern. Although designed for industrial environments, these panels also receive the same fit, finish and attention to detail that our electronic housings for radar and instruments have. Each panel design is rigorously checked by our composites structural engineers to verify loadings and anticipated deflections. All reinforcement glass is precision hand cut (ie. no chopper gun allowed) and laid onto the mold, thus carefully controlling the part thickness and strength characteristics. The laminate begins with a resin rich corrosion barrier, reinforced with a fiberglass or polyester veil and several layers of random chopped strand mat. The structural portion of the laminate is constructed with alternating layers of random chopped strand mat and continuous strand biaxial woven roving. These alternating layers are gradually built up to the final required thickness. The top exterior layer is usually applied with a resin pigmented to the customer's preferred color choice, for long-term color stability, which will not chip or flake off. In this way, the color is molded in, part thickness and reinforcement uniformity is carefully controlled, and problems with typical trouble spots, such as voids and inside corners, are avoided. When requested, a grit surface is applied to increase safety for personnel access. With a Composites USA cover, you get quality to audited MIL-I-45208 standards, and design to U.S. Bureau of Commerce Voluntary Guideline PS-15-69, ASTM and ASME Guidelines, as applicable. All resins used are premium grade corrosion resistant and flame-retardant vinyl ester as standard (Class 1 flame spread to ASTM E-84). Specifications: Resin Fire Retardant Vinyl Ester Exterior Surface Non Skid Grit Minimum Thickness 0.375" (with ribs as required) Flex Strength (Min.) 23,800 psi (ASTM D-790) Flex Modulus (Min.) 1,100,000 psi (ASTM D-790) Tensile Strength (Min.) 16,400 psi (ASTM D-638) Tensile Modulus (Min.) 1,500,000 psi (ASTM D-638) Flame Spread (Max.) 25 (ASTM E-84)