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  2. Conservation and restoration of ceramic objects - Wikipedia

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

    Saws, drills, and other mechanical methods can be used to remove the bulk of protruding materials; however, scratches, chips, and breaks can occur. [4]: p.77–78 Filler material can also be removed chemically. Typically, chemical removal is used once the bulk of filler material is left and only a small portion is left.

  3. Bulk sale - Wikipedia

    en.wikipedia.org/wiki/Bulk_sale

    Similarly, if a merchant has a deep discount sale, that is not a bulk sale as deep discounts can be made in the ordinary course of business. In the modern era, many retail businesses operate on consignment or short credit terms and so compliance with bulk sales registration in the purchase of such a business, or its assets, is generally mandatory.

  4. Conservation and restoration of frescos - Wikipedia

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

    With paintings, a variety of organic solvents are used, but the most common solvent is water, often with chelating agents, surfactants or salts to control pH. Applying solutions through tissues, gels and sponges is becoming the norm, due to the level of control offered by holding the cleaning system at the upper surface of the art.

  5. Talc - Wikipedia

    en.wikipedia.org/wiki/Talc

    The small size of the particles makes it difficult to keep them out of the air while applying the powder. Zinc oxide-based ointments are a much safer alternative. [17] Soapstone (massive talc) is often used as a marker for welding or metalworking. [18] [19] Talc is also used as food additive or in pharmaceutical products as a glidant.

  6. Solvent - Wikipedia

    en.wikipedia.org/wiki/Solvent

    The polarity, dipole moment, polarizability and hydrogen bonding of a solvent determines what type of compounds it is able to dissolve and with what other solvents or liquid compounds it is miscible. Generally, polar solvents dissolve polar compounds best and non-polar solvents dissolve non-polar compounds best; hence "like dissolves like".

  7. Cleaning agent - Wikipedia

    en.wikipedia.org/wiki/Cleaning_agent

    Particles are usually smaller than 0.05 mm. Pumice, calcium carbonate (limestone, chalk, dolomite), kaolinite, quartz, soapstone or talc are often used as abrasives, i.e. polishing agents. Special bleaching powders contain compounds that release sodium hypochlorite , the classical household bleaching agent.

  8. Utrecht Art Supplies - Wikipedia

    en.wikipedia.org/wiki/Utrecht_Art_Supplies

    That was the start of Utrecht Art Supplies. They sold their Belgian linen out of their basement in Brooklyn. The two brothers named their venture Utrecht Linens, Inc. and dedicated themselves to supplying artists with the "highest quality art materials and supplies for the best value." [5] The Gulamerian brothers' artist supply business grew ...

  9. Bulk material handling - Wikipedia

    en.wikipedia.org/wiki/Bulk_material_handling

    Bulk material handling is an engineering field that is centered on the design of equipment used for the handling of dry materials. Bulk materials are those dry materials which are powdery, granular or lumpy in nature, and are stored in heaps. [ 1 ]