Conductivity

Conductivity Meter
Provides measurement of electrical conductivity of solvents and solvent borne paint formulations for electrostatic spray applications.
■ Stainless steel measuring cell and electrodes
■ Solvent resistant housing
Density Cup
Density is defined as weight per unit volume at a specified temperature. Density cups are used for quality control because errors in paint composition will result in different density readings. Density cups have also been described as liquid pycnometers.
BYK-Gardner Density cups use a cylindrical shape which provides a large opening for easy filling, emptying, and cleaning. The tightly fitted stainless steel covers have an upward slope to a small hole in the center to allow excess sample material to be expelled without entrapping air bubbles, which increases accuracy.
Fineness of Grind Gages
Also called grind gages and Hegman gages. Many types of solid materials must be ground or milled into finer particles for dispersion in appropriate liquid vehicles. The physical properties of the resulting dispersions, often called “grinds”, depend not only on
the actual size of the individual particles, but also on the degree to which they are dispersed.
The Fineness of Grind Gage is used to indicate the fineness of grind or the presence of coarse particles or agglomerates in a dispersion. It does not determine particle size or particle size distribution.
Grind gages are used in controlling the production, storage, and application of dispersion products produced by milling in the paint, plastic, pigment, printing ink, paper, ceramic, pharmaceutical, food, and many other industries.
Drying Time Recorder
The various stages of drying and curing that occur in films are easy to detect but difficult to define in terms of chemical and physical principles. In order to evaluate them objectively it is necessary to use instrumentation under controlled conditions.
BYK-Gardner offers the versatile BK Drying Time Recorder to help quantify the various stages of film curing and drying, deliver reproducible results, and guarantee highest efficiency:
■ Simultaneous testing of 6 samples – saves time
■ Three different speeds: 6-12-24 hrs – for any application
■ Alternative speeds available upon request
Permeability Cup
The BYK-Gardner PERM Cup is a shallow cylinder with a threaded flange, flat retaining washer and threaded ring cover. Rubber gaskets are used to tightly seal the specimen between the cup and the ring cover. The cup and cover are knurled for easier handling.
Two different size cups are available:
■ Large 25 cm² cup meets the ASTM standard
■ Small 10 cm² cup allows the use of a smaller specimen and less desiccant