With the sunset of Morehouse Cowles, DisperseTech now offers compatible impeller blades for legacy mixers. Customers...
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Morehouse Cowles Sunset – DisperseTech Offers Compatible Impeller Blades
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Unleashing the Power of Dispersion Blades: A Comprehensive Guide to Enhanced Mixing Efficiency
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In the dynamic world of mixing processes, the efficiency of your equipment can make or break your operations. Enter...
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Properties of Common Solvents
Density, boiling point, evaporation rate, and flash point of common solvents
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Tip Speed Definition and Formula
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 Formulation
Paint consists of four basic components:
Resin
Pigment
Solvent
Additives
The performance of a coating is influenced...
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CLEARANCE HOLE CHART
Clearance hole chart for inch bolts and screws according to ASME B18.2.8
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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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Featured posts
Morehouse Cowles Sunset – DisperseTech Offers Compatible Impeller Blades
With the sunset of Morehouse Cowles, DisperseTech now offers compatible impeller blades for legacy mixers. Customers...
Read more
Unleashing the Power of Dispersion Blades: A Comprehensive Guide to Enhanced Mixing Efficiency
In the dynamic world of mixing processes, the efficiency of your equipment can make or break your operations. Enter...
Read more
CLEARANCE HOLE CHART
Clearance hole chart for inch bolts and screws according to ASME B18.2.8
Read more
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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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