Viscosity
The general consistency, fluidity of a liquid paint. Should not be confused with structure, (see False Bodied, Thixotropic).
Viscosity Cup-Ford Cup
A cup brass/aluminium or PVC with a hole of a specific size in the bottom.
Use to ensure the same thickness/viscosity of a liquid is maintained
.
Wash Primer
Usually referred to paints containing zinc tetroxy chromate with a polyvinyl butyral binder, (see Etch Primers).
Wash Test
Usually carried out by a small pad of lint or sage fixed onto a machine which rotates at a given speed and pressure. The amount of material removed is expressed as good or poor wash resistance.