Serge Ferrari Precontraint 502 Yellow Sunflower 50056 boldly striped awning fabric is weather resistant, flame retardant and heat sealable (RF weldable). Serge Ferrari Precontraint 502 is built with a yard coating that is much thicker than conventional awning fabrics. Enhanced polymers also maintain the fabric's luster making this a perfect fabric for commercial and residential applications including rounded awnings, pergolas, and canopies.