Products for the Removal of Oil, Oil Sheen, Oil-Borne Contaminants and Suspended Solids. While Allowing the Virtually Unrestricted Flow of Water! We use only the finest materials in their construction. Our thread is a heavy duty polyester that is impervious to prolonged exposure to the elements and contaminants. Our designs are well thought-out, and based on over 30 years experience in the environmental industry. We will stand behind all of our products because our workmanship is top quality. We welcome input from our customers, and will work with you to create products for your specific needs.