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Lacquer:
A fast-drying clear pigmented coating that dries by solvent evaporation.
Lacquer Thinner:
A solvent blend used to reduce the viscosity or solids level of lacquer coatings. Commonly a bland of alcohol, acetate, ketone and aromatic hydrocarbon solvents.
Laddering:
A vertical and horizontal crack in masonry block at the martar joints, resembling a ladder (stairs). Also called “stairing.”
Lap:
The edge where one brush stroke, spray pass or roller track overlaps another over and covers the edge of a previous coat. This “lap” should not be visible when dry.
Lap Marks:
To lay or place one coat so its edge extends over and covers the edge of a precious coat, causing an increased film thickness.
Latex:
A water-thinned paint, such as a polyvinyl acetate, styrene butadiene or acrylic. Latex is the milky emulsion generally composed of a combination of starches, proteins, alkaloids, resins, etc. extracted from plants.
Light Reflectance Value:
The amount of light reflected form a painted surface.
Low Solvent Coating:
A coating that is being applied with a reduced amount of solvent. Also known as coating with low VOC (volatile organic compound).
Low Temperature Paint:
Special paints formulated to be applied even at near-freezing temperatures, although if the temperature drops to freezing during the drying process, failure(s) may result. The product’s low temperature limits are critical to product performance (during both application and curing).
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