GOI polishing paste No. 4 jar 100g Rexant 09-3808

GOI Paste No. 4 (abbreviation for State Optical Institute) is an abrasive material used for grinding and polishing surfaces of steel, plastic, non-ferrous metals, glass, ceramics, etc. The main components are chromium oxide, various binders, and other additional components. GOI paste has gained wide application due to its ease of use and the ability to perform surface grinding and polishing at home. Polishing paste selection: ATTENTION! It is important to correctly select a paste with the appropriate abrasiveness level. Accidental use of coarse particles and (or) excessive force may lead to surface damage. Depending on abrasive qualities, the paste is subdivided into the following types: PASTE No. 1 ("fine" or "finish"). Has an almost black color with a greenish tint and abrasiveness of 0.3-0.1 μm. Chromium oxide content from 65 to 75%. Used for final, mirror polishing. PASTE No. 2 ("fine"). Material is dark green in color, having abrasiveness of 7.0-1.0 μm. Chromium oxide content from 65 to 77%. Used for fine surface finishing to provide a mirror shine. PASTE No. 3 ("medium"). Has a green color and abrasiveness of 17.0-8.0 μm. Chromium oxide content from 70 to 80%. Used to create a clean surface and obtain a uniform shine. PASTE No. 4 ("coarse"). Material is light green in color, having abrasiveness of 40.0-18.0 μm. Abrasive content from 75 to 85%. Used to obtain a matte surface and remove small scratches. Technical characteristics: Appearance: solid green mass Composition: chromium oxide 75-85%, organic binders and auxiliary activating substances 25-15% Net weight: 100 g RECOMMENDED WORK PROCEDURE 1. Apply a small amount of paste to a polishing wheel, flannel cloth, or other similar soft material. Do not apply the paste directly onto the surface being processed. 2. In some cases, to dissolve the paste, it is permissible to pre-moisten the wheel or cloth with kerosene or gasoline. 3. For even distribution, rub the paste applied to the cloth or wheel against the metal. This is necessary to remove large pieces of abrasive material capable of damaging the surface. 4. Add a small amount of industrial oil to the surface being processed. 5. Polishing can begin, periodically adding paste. During the process, do not make sudden movements or apply great force, as this may lead to the appearance of scratches. Perform polishing until the desired shine is achieved. 6. Upon completion, rinse the surface with kerosene or remove abrasive residues with water. PRECAUTIONS Keep out of reach of children. REXANT paste complies with TU 6-18-36-85.