The following article includes pertinent information that may cause you to reconsider what you thought you understood. The most important thing is to study with an open mind and be willing to revise your understanding if necessary.
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Sandblasting can be used as an accent to your stained glass or fused glass, or it can be the major aspect of your glasswork. With an understanding of the basics and a little creativity, this technical toolset can help create reproducible effects that are otherwise impossible to create.
Sandblasting Methods and Materials
Most materials be sandblasted except for diamond which is harder than all sandblasting media. Stone is regularly sandblasted as a way to create gravestones and memorials. Metal is sandblasted to remove rust and sharp edges or as a way to enhance adhesion of coatings and adhesives. Wood and brick is sandblasted to remove years of paint, oil and dirt and to produce a clean surface for staining and painting. Certain types of plastic can be sandblasted for decorative effects, but the work has to be done very carefully, as the plastic can be much softer than the abrasive and will wear away quickly.
By mixing air under pressure with a hard, particulate abrasive or media, material can be slowly abraded or worn away by directing the abrasive stream onto the surface of the material. The longer the abrasive stream is held in one spot, the more material will be removed. Moving the nozzle closer to the surface decreases the area being blasted, and increases the rate of material removal. By moving further away, the area increases and the rate of removal decreases. If the nozzle is held very close to the material, a hole can be abraded through the surface very quickly.
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