Gauge Tolerance A range by which a product s gauge can deviate from those ordered and still meet the order s requirements. An instrument that measures pressure, temperature, level or flow depending on the purpose. The thickness of the steel strip. Gel Spotting A coating defect consisting of the uniform circular spots or droplets of higher film thickness on the coated sheet. Gel spotting, while appearing similar to slinging, is much more uniform in appearance and caused by a different mechanism.
Gel spotting occurs when a partially gelled coating is applied to the substrate.
Ghosting A coating defect consisting of an image on the freshly coated plate giving the appearance of the substrate being bent or darker in color. Gouges A gross type of scratch. Temper Mills may run grit. Grit also refers to the finish on the surface of the steel. The size of the shot blast used to mechanically texture a roll for producing a grit finish product.