- United Plastic Fabricating, Inc.is a custom fabricator of plastic products including: The Poly-Tank, Water and Foam Firefighting Trailers, Skid Units, PolyBodies, and other Industrial Products. UPF uses PT2Etm polypropylene with Amoco AccTuftm resin, an ultra high impact copolymer, in the fabrication of the highest quality fabricated products. 8 out of 10 Fire Departments specify the UPF ...www.unitedplastic.com