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Back Priming:
The process of painting or priming the back or unexposed side of material; generally, exterior siding and trim, to reduce the amount of moisture that can travel from the interior. This helps reduce the risk of cupping, swelling and blistering.
Back Rolling:
A technique used when freshly applied paint is smoothed out with an un-dipped roller to even out the appearance and improve consistency. Back rolling is not considered a second coat.
Base Coat:
A base coat can be either a coat applied straight to a substrate; to guarantee adhesion between the substrate and the coating, a ground coat, the plaster coat applied earlier to the finish coat, or a base coat for a decorative finish that shows underneath the glaze coat pattern.
Batch:
The total quantity of material that is produced as the result of one operation. Manufacturers usually apply a code on each unit filled from a batch so that it can be easily identified to the date of production and formula used.
Bleaching:
The process of restoring discolored or stained wood to its normal color or makig it lighter.
Bleeding Stain:
A stain that transfers through coatings applied to it. Usually, this is caused by the stain being soluble in the liquid volatile phase of the coating that is applied. As the volatile material evaporates, the solubilized stain is deposited on the surface.
Blister (ing):
A rounded projection, surface bubbles, that appears in a dry coating film, caused by paint applied over a wet, oily or dirty surface. Also occurs when water vapor escapes from the house interiors and from excessive heat during application that causes the surface to dry too quickly. In wall coverings, a blister is a bubble of entrapped air under the surface that hasn’t been smoothed out.
Blushing:
A defect that can occur during the drying phase of lacquer films. This is generally caused by moisture setting on an uncured surface, an opaque lacquer will lose its gloss and become flat or a clear lacquer will turn white or milky.
Breathe:
The ability of a coating or material to allow the passage of moisture vapor without causing blistering, cracking or peeling. See also Permeability.
Brush:
A tool made of bristles set into a handle. Natural bristles are used for solvent-based coatings; synthetic bristles or filaments are used for water-based coatings; and ire bristles are used for surface preparation.
Burnish (ing):
Commonly associated with the appearance of shiny patches on flat and low sheen finished after being rubbed or polished. Coatings can vary widely in their burnish resistance depending on the type and amount of pigmentation used in the product. Coatings with higher gloss generally have better burnish resistance than those with low sheens.
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