The following tables show standard dimensions for keys and their grooves.
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CLEARANCE HOLE CHART
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Clearance hole chart for inch bolts and screws according to ASME B18.2.8
Pigment/Binder Ratio
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One of the earliest forms of comparison. The pigment/binder ratio is the weight ratio of the sum of the pigments...
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Properties of Common Solvents
Density, boiling point, evaporation rate, and flash point of common solvents
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Blade Speed (tip speed), measures how far a point on the outer most edge of the disperser blade travels in a given...
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Paint consists of four basic components:
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The performance of a coating is influenced...
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Viscosity Conversion
Viscosity Conversion table comparing some of the typical viscosity scales used in Paint and Coatings including:...
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CLEARANCE HOLE CHART
Clearance hole chart for inch bolts and screws according to ASME B18.2.8
Read more
Pigment/Binder Ratio
One of the earliest forms of comparison. The pigment/binder ratio is the weight ratio of the sum of the pigments...
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2021 Eastern Coatings Show
Visit the DisperseTech booth #201 at the Eastern Coatings Show November 17-19, 2021.
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Fineness of Grind
GRIND GAUGE – FINENESS OF GRIND
A grind gauge is an instrument used to quickly evaluate the quality of a dispersion.
The grind gauge is an instrument that indicates the fineness of grind or the presence of coarse particles and agglomeration in a dispersion. It is commonly used to determine how finely ground the particles of pigment are dispersed in a sample of paint.
The grind gauge consists of a steel block with one or more machined grooves. The depth of the grooves varies steadily between a minimum and maximum value. A sample is placed on the grind gage and a machined scraper is drawn at a constant rate beginning at the deeper end of the groove. The gauge is then viewed at a 20-30 degree angle. Scratches will form in the wet coating in the grooves. The point where the scratches begin indicates the grind. A scale aside from the groove corresponding to the particle size indicates the grind reading.
| HEGMAN & NS (NORTH OR NAT'L STD.) |
MILS | MICRONS |
|---|---|---|
| 0 | 4 | 102 |
| 1 | 3.5 | 89 |
| 2 | 3 | 76 |
| 3 | 2.5 | 64 |
| 4 | 2 | 51 |
| 5 | 1.5 | 38 |
| 6 | 1 | 25 |
| 7 | 0.5 | 13 |
| 8 | 0 | 0 |
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