Scratch Hardness for Oil, Petroleum and Paint Testing - deciding the scratch hardness of prepared mixed paints and enamels, which is the base load required to create a scratch demonstrating the uncovered metal surface of the painted board. The contraption comprise of a 1mm dia hemispherical stainless steel needle, settled to a stage of a counteracted which is amassed on a furrowed stage. A rack travels through the depression, to which a painted board can be braced. A pointer light is given to show the metal infiltrates the paint surface to reach the metal. Finish with 1 kg weight. Reasonable for operation of 220V, 50 Hz, single stage, AC supply. Additional items : - Needle.
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