This recommended practice encompasses the requirements for expert application of a quality coating system to the interior surfaces of a covered hopper rail car that have been prepared to a specified, recognized standard. Qualified inspection of the completed coating system and testing by the use of adequate, readily available instruments are also covered in this recommended practice.

1.1 This recommended practice describes a procedure tor the application of a coating system to the interior surfaces of covered, steel hopper rail cars used primarily in the plastic, food, and chemical industries.

1.2 The requirements for surface preparation, coating application, inspection, and quality tests necessary for internally coating a covered .hopper car are covered in this recommended practice.

1.3 This recommended practice calls attention to basic safety precautions regarding the handling and use of coating materials and solvents. Chapter 1, "Safety," of NACE

Publication TPC No. 2, Coatings and Linings for Immersion Service (see Paragraph 2.1 ), contains more detailed information. Material safety data sheets supplied by the coating manufacturer provide specific safety information.

1.4 Appendix A is a suggested covered hopper car coating system inspection report form.

1.5 Appendix B describes essential facilities and equipment for application of a coating system to the interior of covered hopper cars.

Historical Document 1992