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  2. Rotational bell painting - Wikipedia

    en.wikipedia.org/wiki/Rotational_bell_painting

    The typical bell applicator consists of five major assemblies: the valve module, the bell cup, the turbine, the shaping air shroud, and the electrostatic system.. The valve module is a manifold consisting of passages for paint, solvent, and compressed air, and valves to control the flow of materials for paint delivery, cleaning and purging with solvent or hydropurge, and management of ...

  3. Powder-actuated tool - Wikipedia

    en.wikipedia.org/wiki/Powder-actuated_tool

    They can more easily be used in narrow or awkward locations, such as installing steel suspension clips into an overhead concrete ceiling. Powder-actuated tools are powered by small explosive cartridges, which are triggered when a firing pin strikes a primer, a sensitive explosive charge in the base of the cartridge.

  4. Vapor barrier - Wikipedia

    en.wikipedia.org/wiki/Vapor_barrier

    Vapor retarder paints (for the air-tight drywall system, for retrofits where finished walls and ceilings will not be replaced, or for dry basements: can break down over time due to being chemically based). Extruded polystyrene or foil-faced foam board insulation. Exterior grade plywood, 0.70 US perm (40 SI perm).

  5. Air entrainment - Wikipedia

    en.wikipedia.org/wiki/Air_entrainment

    Air entrainment in concrete is the intentional creation of tiny air bubbles in a batch by adding an air entraining agent during mixing. A form of surfactant (a surface-active substance that in the instance reduces the surface tension between water and solids) it allows bubbles of a desired size to form.

  6. Damp proofing - Wikipedia

    en.wikipedia.org/wiki/Damp_proofing

    A metal damp proof course (DPC) between the stone foundation and brick wall. Damp proofing in construction is a type of moisture control applied to building walls and floors to prevent moisture from passing into the interior spaces. Dampness problems are among the most frequent problems encountered in residences.

  7. Phosphate conversion coating - Wikipedia

    en.wikipedia.org/wiki/Phosphate_conversion_coating

    Phosphate conversion coating is a chemical treatment applied to steel parts that creates a thin adhering layer of iron, zinc, or manganese phosphates to improve corrosion resistance or lubrication or as a foundation for subsequent coatings or painting.

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