Abstract: A simple inexpensive gloss measurement device which makes use of the measment of a maximum angle of view of a clear reflection to obtain a measurement of gloss, consists of an instrument of L-shaped configuration with one or more small images (e.g., hollow squares) on the lower portion of the shorter arm and a graduated scale along edges of the longer arm. The device is placed on a coated surface to be measured, with the images close to the surface of the coating. The highest angle of view at which reflection of the images on the coating can be clearly recognized is noted on the graduated scale as a measure of the gloss of the coating.

Abstract: This is a process that allows previously cleaned steel (which may have been leaned in any of several different ways) to be passivated with a rinse of almost pure water, that is made slightly alkaline to inhibit corrosion, and flash rusting such that any small residue remaining on the steel surface after drying of the water will itself evaporate and in such a manner that any remaining residue will be incorporated into a subsequently applied non-aqueous protective coating without leaving any water-soluble or ionic residue on the surface of the steel that will cause corrosion or affect adhesion of the protective coating.

Abstract: The automatic vacuum recyclable system for chemically-thermo cleaning tanks nd bilges primarily comprises a makeup, storage and heating unit, a pressure pumping and spraying unit, a vacuum and separation unit, and a filtration unit. The system functions to clean tanks and bilges without the need for a work crew to be inside during actual surface cleaning operations.

Abstract: A low viscosity, non-foaming stripping composition comprising by volume 79% -methylpyrrolidone, 20% monoethanolamine and 1% non-ionic surface active agent is applied at elevated temperatures (around 180 degrees F.) for removing thick (e.g., 10-mil) epoxy coatings and similar chemically resistant coatings from steel surfaces, and is suitable for spray application and for recycling.