Profile: F R P Composites, Inc. is a manufacturer of custom made corrosion resistant fiberglass products. Our range of products include handrailing, ladders, stairways, threaded couplings and weir plates & washers. We also offer a complete selection of extren pultruded fiberglass structural shapes and fiberglass grating & stair treads. Our products are used for commercial, industrial and wastewater applications.