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East Coast Powder Coating In-House Sandblasting Services At East Coast Powder Coating we strive for the best finish possible. The best finish starts with the best surface preparation. We start with our In-house sandblasting for surface preparation. Surface preparation is the most important part of powder coating. The end finish is only as good as what it's applied to. Sandblasting the surface of your material prior to coating provides and excellent surface for the powder coating to adhere to. Blasting also increases the adhesion and durability of the finish. Our blast system uses garnet media to remove the old finish, metal oxides or manufacturing by products that remain on the metal. Sandblasting or bead blasting is a generic term for the process of smoothing, shaping and cleaning a hard surface by forcing solid particles across a surface at high speeds; the effect is similar to that of using sandpaper, but provides a more even finish with no problems at corners or crannies. Sandblasting can occur naturally, usually as a result of the particle blown by the wind causing eolian erosion, or artificially, using compressed air. An artificial sandblasting process was patented by Benjamin Chew Tilghman on October 18, 1870 Historically, the material used for artificial sandblasting was sand that had been sieved to a uniform size. The silica dust produced in the sandblasting process caused silicosis after sustained inhalation of dust. Sandblasting may now only be performed in a controlled environment using ventilation, protective clothing and breathing air supply. Other materials for sandblasting have been developed to be used instead of sand; for example, steel grit, steel shots, copper slag, glass beads (bead blasting), metal pellets, dry ice, garnet, powdered abrasives of various grades, powdered slag, and even ground coconut shells or corncobs have been used for specific applications and produce distinct surface finishes. |