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Online Painter's Glossary
The Letter "D"         M | P | D | A
DADO 1) A rectangular groove in millwork.
2) The lower part of the wall of a room if decorated differently from the upper part.
DADO RAIL The wooden or plaster molding designating the top edge of the dado.
DAMAGE BY OTHERS (DBO) Any marks, stains, scuffs, scratches or other damage to a newly painted surface that is caused by anybody other than the painter. Also known as Damage Caused by Others.
DAMMAR Oil soluble resins that originate in the East Indies and were once used in the preparation of varnishes and lacquers. Often used in the past for clear over-print varnishes and to improve the gloss and hardness of baking alkyds. Sometimes spelled Damar.
DAMP For a surface, damp indicates a moist condition with no visible water at the surface.
DAPPLING A graining process whereby the silver grain (dapples) are imitated. See also Graining.
DEAD FLAT A coating or surface having no gloss or sheen.
DEADENING A condition where a coating loses its luster or gloss. This may be caused by an insufficient undercoat or improper filling of a wood surface. See also Flashing, Suction Spotting.
DEADMAN VALVE A remote shut off valve used on abrasive blast equipment.
DECK COATING A pigmented coating designed for application to horizontal walking surfaces such as decks and porches. In most cases a coarse aggregate is added where slipping is a concern (i.e. non-skid).
DECORATIVE COATING A coating applied more for its aesthetic or decorative function than for protective purposes.
DECORATIVE (PAINT) FINISH Application of paints or glazes to adorn, decorate or embellish a surface as compared to a plain solid color, stain or varnish finish and as opposed to performing a protective function. This general group of decorative paint finishes includes a widening number of ‘subgroups’ many of which overlap and many of which have more than one name by which they are referred to. These include:
· Faux (false) Finishes – In French ‘false’ finish. These seek to imitate products found in nature like wood, marble, granite, stone, etc. These include wood graining, marbling, gilding, etc.
· Representative Finishes – These seek to imitate products otherwise made like leather, parchment, frescoe, venetian plaster (itself a faux plaster), etc.
· Special Effect Finishes – Broken color effects (as opposed to imitation effects), like ragging on, ragging off, sponging on, sponging off, strie’, splattering, stippling, etc.
· Graphic Finishes – Detailed effects like stenciling and graphics that are “in accordance with mathematical rules”.
· Pictorial Finishes – Decorative effects like murals, scenics, portraits, etc.
· Trompe d’oeil – In French, “Trick Of The Eye” - That which creates such a strong illusion that it is difficult to ascertain whether it is real or a representation. Usually, but not always, three-dimensional giving the impression of depth and perspective.
DECOUPAGE A decorative effect obtained by gluing shapes (often irregular) of paper or other material to a surface, then applying clear or varnish coats overtop.
DECOUPAGE EPOXY A solvent free, two component, clear epoxy coating used for thick film applications to decorative items and table tops. This material forms a thick (10 - 30 mil), durable finish.
DEEP COLOR An intense or strong color with no apparent appearance of black. Also called an accent color.
DEEP BASE A paint base, generally containing a small amount of prime pigment, used for tinting moderately dark or strong colors. See Tint Base.
DEFICIENCIES Individual items lacking in some essential; incomplete; defective. See Defective Work. Also see Painting Deficiencies and Substrate Deficiencies.
DEFICIENCY LIST A list, made at or near the completion of work, indicating items to be finished (or work to be performed) by the contractor or subcontractor in order to complete the work as specified in the contract documents. Also known as a Punch List.
DEFECTIVE WORK Work not complying with contract or specification requirements. See also Noncompliant.
DEFOAMER A material used in the manufacture of a coating to reduce the foaming either in the processing step or during application. Latex paints generally require a defoamer due to the complex mixtures of dispersants, emulsifiers and surfactants used in them.
DEFORMATION The change in shape or form in a material caused by stress or force.
DEGLOSSER A liquid alternative to sandpaper (e.g. TSP, various strong solvents, or commercially available preparations). Used to remove the gloss of a conventional coating in order to improve adhesion of subsequently applied coatings by providing some mechanical ‘tooth’.
DEGREASING The removal of contaminants, such as oil, grease, fat, etc., from a surface by the use of a cleaning solution. The solution can be a detergent, solvent or a blend in liquid or vapor form. See also Solvent Cleaning and TSP.
DEHUMIDIFY The removal of moisture in the air through a process of condensation, desiccation, etc.
DEIONIZED WATER Water that has been treated to remove the dissolved ions. Commonly, filtration through a combination of anionic and cationic charged resins is used.
DELAMINATION The separation of a dried surface coating from the substrate to which it is applied. The substrate could be a previous coat of paint, primer, wood, metal, etc. See MPI’s Identifiers.
DENATURED ALCOHOL Ethanol containing a percentage of methanol (to make it unsafe for human consumption). A solvent commonly used for shellac.
DENSITY The mass of a material per unit volume. Commonly expressed as pounds per gallon (lb/gal), kilograms per liter (kg/l) or grams per milliliter (gm/ml). The density of water at 3.98 degrees C. is 8.33 lb/gal (U.S.), 1.0 kg/l or 1.00 gr/ml.
DEPTH OF FINISH A desirable visual impression usually gained by viewing a thick film of varnish or enamel of excellent smoothness or evenness.
DESCALING The mechanical or chemical removal of mill scale and/or tied rust from a ferrous surface.
DESICCANT A material that produces dryness. Commonly used to absorb water from the air.
DESIGN AUTHORITY In the construction of a structure, the design authority is the person(s) responsible for the final design. This, in most cases, is an architect or engineer that determines the best materials to use for that structure.
DETERGENT A cleaning agent, either hydrophilic (water soluble), or oleophillic (oil soluble) and to wet and emulsify contaminants to facilitate removal from a surface.
DEW The condensation on cool objects of atmospheric moisture in warm, humid air.
DEW POINT The temperature at which condensation of water vapor in the air takes place. This can be calculated from temperature and humidity.
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