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  2. Sandblasting - Wikipedia

    en.wikipedia.org/wiki/Sandblasting

    Moderately abrasive variants include glass bead blasting (with glass beads) and plastic media blasting (PMB) with ground-up plastic stock or walnut shells and corncobs. Some of these substances can cause anaphylactic shock to individuals allergic to the media. [3] A mild version is sodablasting (with baking soda).

  3. Conservation and restoration of outdoor bronze objects

    en.wikipedia.org/wiki/Conservation_and...

    Using walnut shells as an air abrasive was developed as a gentler form of cleaning than sand-blasting or glass bead peening. Veloz found that a lower pressure of air is needed than the other varieties, though still a large quantity of air is required due to the finding that using a larger nozzle seemed to be more efficient (5/16-inch or 3/8 ...

  4. Powder coating - Wikipedia

    en.wikipedia.org/wiki/Powder_coating

    Plastic media blast equipment uses plastic abrasives that are sensitive to substrates such as aluminum, but still suitable for de-coating and surface finishing. Sand blast medium uses high-purity crystals that have low-metal content. Glass bead blast medium contains glass beads of various sizes.

  5. Shot peening - Wikipedia

    en.wikipedia.org/wiki/Shot_peening

    Media choices include spherical cast steel shot, ceramic bead, glass bead or conditioned (rounded) cut wire. [7] Cut wire shot is preferred because it maintains its roundness as it is degraded, unlike cast shot which tends to break up into sharp pieces that can damage the workpiece. Cut wire shot can last five times longer than cast shot.

  6. Glass bead making - Wikipedia

    en.wikipedia.org/wiki/Glass_bead_making

    Lampworked dichroic glass bead showing thin film application Furnace glass beads. A variant of the wound glass bead making technique, and a labor-intensive one, is what is traditionally called lampworking. In the Venetian industry, where very large quantities of beads were produced in the 19th century for the African trade, the core of a ...

  7. Foundry - Wikipedia

    en.wikipedia.org/wiki/Foundry

    Numerous materials may be used to clean cast surfaces, including steel, iron, other metal alloys, aluminium oxides, glass beads, walnut shells, baking powder, and many others. The blasting media is selected to develop the color and reflectance of the cast surface. Terms used to describe this process include cleaning, bead blasting, and sand ...

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