The correct method of polishing automobiles
The judgment of the paint scratches, scratch: hair washing and wiping or slight friction of fine scratches, general touch without feeling.Superficial scratches: the finish is broken, and no scratches on the primer are superficial scratches.Moderate scratches: the finish is broken and the primer scratches are marked with moderate scratches.Deep scratches: the scratches on the car's iron plate are deep scratches.
The basic structure of paint, top coat - primer - phosphating coating (baking paint primer) - iron two, the annual exposure of the oxide layer of sunlight is the main reason for shortening the paint, this process is called oxidation layerDepth oxide: refers to the car used in the two to three years of the car;Moderate oxidation layer: refers to the use of automobiles in one to two years by car;Mild oxidation layer: refers to the car used in less than a year's car.
Polishing will paint the aging of the film grinding off, so that the new paint film, and restore bright. Polishing operations are divided into: paint oxidation, renovation, polishing, most cars do; paint scratches repair work, mostly local.
Abrasive polishing agent 1, abrasive; containing fine particles, can remove the oxide layer and the depth of minor scratches and paint when the pits and vertical flow2, paint polishing agent: reduction of abrasive particles finer than some, can remove paint in mild scratch, this product contains oil in the paint when polishing into paint, paint of lost oil to the brightening effect of nursing, also called moderate polishing agent.3, rapid polishing agent: thinner than the reduced polishing agent, also known as fineness polishing agent. With the removal of oxide layer and the double effect of wax as a final polishing process, by handwork, make up machine polishing has been halo phenomenon has brightening effect, also known as brightening agent. The use of five speed polishing machine (grinding machine) mechanical polishing machine is divided into two kinds of electric and pneumatic electric polishing machine is large and adjustable reporting reporting, large power, good polishing effect, have to pay attention to the power loom large for beginners should always pay attention to the state of the machine, to avoid damage to the paint. Pneumatic polishing machine reported low, and grinding, polishing, grinding effectiveness is poor, the efficiency of grinding and polishing operations is relatively low. We usually use electric polishing machine, variable speed polishing machine is a set of grinding and polishing as one of the equipment, the installation of grinding disk can be carried out grinding operations, installation of polishing disc can be polished. The variable speed polishing machine smoothes and finishes the paint by rotating the grinding plate or polishing disc to remove minor paint defects and increase brightness.
