Test Methods Used in Developing Technical Data Sheets
In this edition, we will discuss how to determine the fineness of grind and viscosity of a wet paint sample, and various aspects on appearance of the dry paint, including gloss, color and hiding.
The operation of this instrument is relatively simple, but can, at times, be difficult to evaluate or “read” properly. With the gage laying flat on a horizontal surface, wipe the face clean with a soft, lint-free cloth. Mix the paint sample, taking care not to incorporate air bubbles or foam. The paint sample is applied to the top (deepest) grove of the gage. Using both hands, hold a scraper firmly to the surface and draw the paint down the tapered groove of the gage evenly. As quickly as possible, view the face of the gage with light striking across it.