Painting terminology explained: a glossary

A similar service to Service Central based in the US put together this excellent glossary of painting lingo, which we thought our customers would find useful even with a potential translation issue between US and Australian terminology!

Regards to Service Magic - you can view their original article here.

  • Abrasive: Substance used for wearing away a surface by rubbing.
  • Acrylic: a synthetic resin used in latex coating.
  • Adhesion: The strength of a paint or sealant to remain attached to a surface.
  • Alkalai: A basic, or caustic, chemical substance. Found in fresh cement, concrete, plaster and certain household cleaning products.
  • Anti-Corrosive Paint: A paint that resists rust and corrosion when applied to metal.
  • Binder: The component of paint that "binds" the pigment to the film and makes the paint stick to the surface.
  • Bleaching: The loss of color in a paint, often caused by exposure to sunlight.
  • Bleeding: when one substance runs into another, often caused when a material bleeds from the substrate into the applied material.
  • Blistering: The formation of bubbles on the paint surface.
  • Boxing: The mixing together of different types of paint to ensure a uniform consistency.
  • Bristle: the "hairs" on a brush, either natural (hair) or artificial (nylon or polyester).
  • Burnishing: Shiny areas on a painted surface achieved by rubbing or washing the surface.
  • Caulking: a semi or slow drying plastic material used to seal joints or fill crevices around windows, chimneys, trim, joints, etc.
  • Chalking: The formation of a powdery substance on a painted surface.
  • Checking: A checkerboard pattern that forms on top layer of a paint.
  • Coating: A paint, stain, varnish, lacquer, or other finish that both protects and provides decoration to the substrate.
  • Color Retention: The ability of paint to resist fading.
  • Corrosion Inhibitor: Any material applied in order to prevent the rusting of metals.
  • Coverage: The area in square feet that a paint will cover.
  • Cracking: The splitting of a dry paint or varnish, most often the result of aging or movement of the substrate.
  • Crocodiling: A pattern that appears on paint due to the inability of the paint to bond to the surface below.
  • Cutting In: Painting a surface next to another surface that must not be painted. For example, painting the frame of a window but not the glass.
  • Degreaser: Any material used for removing oils or grease from a substrate.
  • Durability: The degree to which a coating or sealant can withstand environmental factors.
  • Eggshell: An interior paint that has a silk-like appearance.
  • Elasticity: The ability of paint or sealant to expand and contract with the substrate without suffering damage or changes in its appearance.
  • Enamel: A colored varnish or high gloss paint that is dirt resistant. Often used in kitchens and bathrooms.
  • Epoxy: A water resistant, clear finish.
  • Fading: A lightening of paint or stain due to exposure to light, heat or weather.
  • Feathering: Blending a small area into the surrounding paint or stain.
  • Filler: Any compound used to fill large cracks in walls that can be sanded when dried.
  • Film: A layer or coat of paint.
  • Flaking: Any place where small pieces of the film fall off of the previous coat of paint.
  • Flat: A painted surface free from a gloss or sheen.
  • Galvanized: Any metal coated with zinc to protect it from rusting.
  • Gloss: The shininess or reflectiveness of a paint.
  • Grain: The appearance of fibers in wood or veneer.
  • Hardboard: Any smooth or textured panel made of compressed wood.
  • Hardness: The level of pressure a material will withstand without becoming deformed or scratched.
  • Hardwood: Term for trees that have broad leaves (like oak, maple, ash, beech and walnut). Does not correlate to the actual hardness of the wood.
  • Joint: Any place where two building materials come together and leave a gap or space.
  • Knotting Compound: A clear finish or sealant for floors, for sealing knots.
  • Latex Paint: Water-based paint made with a latex binder.
  • Lead: A soft, malleable heavy metal used in the past in paint. Lead based paints are toxic in nature. Especially dangerous where children have contact to lead based painted surfaces.
  • Levelling: The ability of a paint to form a smooth surface without brush marks.
  • Linseed Oil: A darker and slower drying oil that can be added to paint. Once prevalent in paint and stains, it now has limited use.
  • Marbling: A decorative painting technique that imitates the color and figure of marble.
  • Mineral Spirits: An effective paint thinner, especially when using oil based paints.
  • Moisture Resistance: The ability of a paint or stain to resis swelling, blistering or other damage caused by moisture.
  • Nap: The fibres on a paint roller cover.
  • Oil-Based Paint: Any paint made with a drying oil, such as linseed, soya or tung oil. With oil based paints you must use mineral spirits or paint thinner as the thinning agent.
  • Opacity: The ability to block out light.
  • Opaque Stain: An exterior stain that obscures the natural color and grain of wood, but still allows the texture to show through.
  • Peeling: The detachment of paint from the surface in ribbons or sheets.
  • Permeable: Allows another material to pass through without effecting the existing material.
  • Polyurethane Varnish: A clear, alkyd coating.
  • Primer: A first coat of paint applied in order to inhibit corrosion and provide adhesion between the substrate and subsequent coats of paint.
  • Roller: A painting tool comprised of a rolling cylinder covered with a natural or synthetic material.
  • Runs: A blemish caused by excessive flow of the coating. Usually caused by applying too much paint or stain.
  • Sag: A downward movement of a paint or varnish caused by the application of too much coating, or the gathering off too much material in holes, cracks or joints.
  • Sealer/Sealant: A liquid coat that seals the surface and prevents it from absorbing paint or varnish. Sealers are often transparent and are used as both primers and as topcoats.
  • Self-Cleaning: An exterior paint designed to chalk quickly to maintain a clean appearance.
  • Semi-Transparent Stain: A stain that alters the natural color of the wood while allowing the grain and texture to show through.
  • Settling: The accumulation of material (usually pigment) at the bottom of a container containing paint or stain.
  • Sheen: A paint that appears to be matt when viewed near to perpendicular, but appears to be glossy when viewed from other angles.
  • Shellac: A sealer applied to finish floors that both protects and gives shine to the surface.
  • Skin: Any film that forms on the surface of a stored paint or sealant.
  • Softwood: Evergreen trees (spruce, fir and pine). The term does not refer to the hardness of the wood.
  • Spackling: A filler, often used for filling cracks and holes, that prepares surfaces before painting.
  • Sponge Painting (Sponging): An interior painting technique in which sponges are used to apply or partially remove a coat of paint.
  • Spot Prime: The process of applying a primer to areas where paint has been removed or stripped to the original surface.
  • Stain: Any coating that colors wood without obscuring the grain and/or texture.
  • Stenciling: The method of applying a design by brushing or sponging paint through a cutout overlay placed on the surface.
  • Stripping: The process of removing old paint varnishes or stains by using paint remover, sandpaper, or other tools.
  • Substrate: Any surface to which a paint, stain or sealant is applied.
  • Tacky: The stage in the drying process when the cover material is sticky and leaves prints when touched.
  • Thinner: Any liquid used to thin the primary coating. Water and oil are the most common thinners in paint and stains.
  • Topcoat: the final coat applied.
  • Touch Up: The process of applying small amounts of paint or stain to cover pre-existing blemishes.
  • Tung Oil: the Oil of the nut of the tung tree. Generally used in fine wood finishing.
  • Turpentine: Derived from pine, most often used as a thinner and cleaning solvent.
  • Undercoat: A coating that provides improved adhesion and/or more gloss and uniformity to a topcoat.
  • Varnish: A liquid composition that dries transparent after being applied in a thin layer.
  • Varnish Stain: Any varnish with a transparent color added.
  • Vehicle: The liquid portion of paint, composed of the thinner and binder.
  • Water Repellant: Any finish that prevents penetration of water into the substrate.
  • Water Based Paint: Any paint made with acrylic, vinyl or latex resins, and thinned with water. It dries more quickly than oil-based paint, has a relatively low odor and cleans up easily.
  • Weather Resistance: The ability of a coating to retain its appearance and integrity in the face of various weather conditions.
  • Wire Brushing: Cleaning a surface with a wire brush, or wire power brush.
  • Wood Filler: A product used to fill the grain of wood before undercoats or finishes are applied. Most often used on furniture.
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