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Term Definition
Vinyl Foam Cushioning. Carpet cushioning made from a combination of foamed synthetic materials.  
Vinyl Gasket. A plastic seal between glass and aluminum.  
Vinyl Resins. synthetic resins made from vinyl compounds such as vinyl acetate.  
Vinyl Sheet Floor. A thin sheet of vinyl used for the finish of floor surfaces.  
Vinyl Sheet. The rolled form of vinyl.  
Vinyl Sheetrock. Gypsumboard with a thin layer of vinyl as the finished surface.  
Vinyl Siding. Exterior wall coverings made from a thermoplastic compound.  
Vinyl Tile. A semi-flexible, resilient floor tile made from polymerized vinyl chloride, vinylide chloride, or vinyl acetate.  
Vinyl Trim. Extruded vinyl moldings used for concealing edges, ends, joints, and corners of various sheet materials.  
Vinyl Wall Covering. A tough, flexible and shiny film or liquid bonded by heat to a paper or fabric backing material.  
Vinyl. A plastic made by polymerization, used in flooring, wall coverings, gaskets, and miscellaneous parts.  
Vinyl-Covered Gypsum Board. see Predecorated Wallboard.  
Virgin Growth. The growth of mature trees in the original forests; to be distinguished from Second Growth.  
Viscoelasticity. The ability of a material to simultaneously exhibit viscous and elastic responses to deformation.  
Viscometer. An instrument for the measurement of Viscosity.  
Viscosity Cup. A device for measuring viscosity.  
Viscosity Grading. A classification system of asphalt cements based on viscosity ranges at 140°F (60°C); a minimum viscosity at 275°F (135°C) is also usually specified; the purpose is to prescribe limiting values of consistency at these two temperatures; . 140° F approximates the maximum temperature of asphalt pavement surface in service in the U.S.; 275°F approximates the mixing and laydown temperatures for hot asphalt pavements; there are five grades of asphalt cement based on the viscosity of the original asphalt at 140°F.  
Viscosity. Internal friction in a fluid; resistance to flow; the ratio of the shear stress existing between laminae of moving fluid and the rate of shear between these laminae.  
Vise Grip. A pliers-like hand tool that has great gripping power through a simple system of highly efficient leverage.  
Vise. Bench tool with two jaws that can be closed by turning a screw, for holding work.  
Vision Panel. Glass placed in an opening of a door.  
Visual Aid Board. A display that has information posted on it with writing, diagrams or pictures to dispense helpful facts.  
Vitreous China. The material of a china plumbing fixture with a finish resembling glass, in color, composition, brittleness, and low porosity, used for toilets, urinals, and lavatories.  
Vitreous Enamel. A fired-on opaque glassy coating on metal, such as steel.  
Vitreous Slip. A slip coating matured on a ceramic body, producing a vitrified surface.  
Vitreous Tile. Tile with water absorption of more than 0.5%, but not more than 3.0%.  
Vitreous. That degree of vitrification evidenced by low water absorption; vitreous generally signifies less than 0.5% absorption, except for floor and wall tile and low-voltage electrical porcelain which are considered vitreous up to 3.0% water absorption.  
Vitrification Range. The maturing range of a vitreous body, producing a vitrified surface.  
Vitrification. The progressive rction in porosity of a ceramic composition as a result of heat treatment, or the process involved.  
Vitrified Clay Pipe. Pipes used especially for underground drainage, that are made of hard baked clay.  

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