GLOSSARY 

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V 

VACUUM BLASTING

See CLOSED ABRASIVE BLAST CLEANING. 

VACUUM-SHROUDED POWER TOOL

Power tool equipped with a vacuum shroud to capture dust, debris, and other materials while they are being generated and prevent them from escaping into the environment. 

VALUE

The lightness or darkness of a colour. 

VARNISH

A liquid composition that is converted to a translucent or transparent solid film after application in a thin layer. 

VARNISH STAIN

A varnish in which stain has been mixed. By using this material, it is possible to perform two jobs with one operation. 

VEHICLE

The liquid portion of paint in which the pigment is dispersed. It is composed of binder and solvent. 

VINYL ALKYD RESIN

Alkyd resin system modified with vinyl. This modification can enhance the recoatability, moisture resistance, and chemical resistance of the alkyd resin. 

VINYL COATING (PLYVINYL CHLORIDE)

Coating based upon vinyl resin. Vinyl acetate is commonly used in latex paints. Polyvinyl chloride is used in some solvent-thinned coatings where high chemical resistance is needed. There are many other vinyl derivatives that appear in various specialized coatings. 

VINYL FABRIC

A prefabricated wallcovering made from a vinyl resin, available in a variety of textures and patterns. 

VINYL RESIN

A synthetic resin made from vinyl compounds. These resins include polyvinyl acetate, polyvinyl chloride, and copolymers of these compounds with other compounds. 

VISCOSITY

A measure of a coating’s resistance to flow. A high viscosity coating is thick; a low viscosity coating is thin. 

VM&P NAPHTHA - VARNISH MAKER’S AND PAINTER’S NAPHTHA

Varnish Maker’s and Painter’s naphtha is a hydrocarbon solvent mixture composed of aliphatic compounds. 

VOLATILE

The easily evaporated components of any coating composition.

VOLATILE CONTENT

Percentage of materials in a coating that evaporate. 

VOC - VOLATILE ORGANIC COMPOUND

Any organic compound involved in atmospheric photochemical reactions. In particular, any organic compound other than those that the EPA designates as having negligible photochemical reactivity. 

VOLUME SOLIDS

The portion of a coating that remains as part of the dry film; expressed as percent by volume. This number can be used to calculate the amount of wet thickness of a given coating to be applied in order to produce the desired dry film thickness.