To begin polishing start with a stiffer buff such as a felt bob or felt cone, sisal buffing wheel, specialty buff, or spiral sewn buffing wheel. Step 2: Select Polishing Compound and Buffing Wheel Continue sanding until there are no scratches visible and a satin finish is achieved (1000 grit wet dry is usually a good grit to end with before polishing). Sand in a consistent motion without cross hatching and follow the grain of the material, if visible. Work your way up in grit from the coarsest applicable paper to the finest. A good rule of thumb is if your fingernail can catch the edge of a scratch then it will need to be sanded before it can be polished. Step by Step Polishing Instructions Step 1: Sandingĭetermine if the material you wish to polish needs to be sanded first. You may also want to protect surfaces and tools with tape or padding to prevent accidental gouging. SafetyĪlways wear protective gear when polishing including safety goggles or face shield, dust mask, shop apron and gloves. We recommend before polishing a new surface to practice on a piece of scrap to familiarize yourself with the material and how it responds to polishing. Every material has different properties and will buff differently. The following steps can be followed for most reflective surfaces including metals, plastics, rubber and even wood. Always work from coarse to fine when polishing (the same as if you were sanding a piece of wood). In order to make the material more reflective and smoother, when polishing you are simply removing the surface of the material down to the depth of the deepest scratch. Clean thoroughly, and if your work piece is still dull then proceed to polishing. Metals appear dull when there are scratches or dirt preventing the light from reflecting directly off the surface. Preliminary Notes Clean Before Polishingīefore polishing your work piece, it's important to first clean it thoroughly. Polishing compound grades and colors are not consistent between manufactures. Please note these instructions are for use with the polishing compounds, jewelers rouge, and buffing wheels found on. These polishing instructions will take you from start to finish through the process to help you understand the science and begin mastering the art of metal polishing. Please contact us so we can help you choose appropriate consumable according to your needs.Metal polishing is part art and part science. Fine grinding removes the deformations resulting from coarse grinding to make the surface ready for polishing which is the final stage. They are also compatible with other brands grinding and polishing machines. Coarse paper discs (up to 120 grit) are used for planar grinding. MSE Supplies offers Silicon Carbide Sandpaper with Plain Back for grinding from Metkon Instrument that works perfectly on Metkon FORCIPOL Series Grinding and Polishing Machines that we offer. The purpose of planar grinding is to obtain a level surface and to remove scale, burrs or surface irregulation from the specimen. Grinding is divided into two processes: Planar grinding and Fine grinding. Grinding is the next stage after sectioning. In order to obtain scratch free surfaces without deformation, successive material removal by abrasives is necessary. Silicon Carbide Sandpaper with Plain Back for Grinding
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