Posted in : "2021 - November"

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  2021 Eastern Coatings Show

  Posted in: Events

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  Visit the DisperseTech booth #201 at the Eastern Coatings Show November 17-19, 2021.

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  Investment Casting High Shear dispersers

  Posted in: Mixing and Dispersion

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  To produce the best quality dispersion in the least amount of time, an investment casting dispersion blade must be a durable high-shear blade.

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  Sheet Metal Gage Chart

  Posted in: Tables and Conversions

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  Sheet Metal Thickness is reported in gage.  Our Gauge Chart provides both fractional and decimal thickness of sheet as well as weight per sq ft.

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  Screen Mesh - Market Grade/U.S. Standard Comparison Chart

  Posted in: Tables and Conversions

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  Screen mesh indicates openings/inch, wire diameter differences between Market Grade and U.S. Standard Mesh results in changes in opening size and open area.

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  Viscosity Conversion

  Posted in: Mixing and Dispersion, Tables and Conversions

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  Viscosity Conversion table comparing some of the typical viscosity scales used in Paint and Coatings including: Poise, Stokes, Ford Cup, Zahn Cup, and Krebs

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  Critical Pigment Volume Concentration

  Posted in: Paint and Coatings

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  The point where there is just sufficient binder present within a paint to cover each extender particle with a thin layer and fill all voids between particles.

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  Pigment Binder Ratio

  Posted in: Paint and Coatings

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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 (pigments and fillers) to the binder solids.

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  Pigment Volume Concentration

  Posted in: Paint and Coatings

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  The ratio of the volume of pigment to the volume of total nonvolatile material present in a coating. The figure is usually expressed as a percentage.

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  Malcomizing

  Posted in: Mixing and Dispersion

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  In the Malcomizing heat treating process the passive oxide surface film of the stainless steel is broken down to permit nitrogen diffusion into the steel, at relatively low temperatures. This increases the Hardness to around 64-68 Rockwell C.

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  Dispersion Blade Diameter

  Posted in: Mixing and Dispersion

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  The blade diameter should be roughly 1/3rd the diameter of the vessel...

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  Dispersion Blade Designs

  Posted in: Mixing and Dispersion

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  Most dispersion blades are formed from a circular disk of material, typically 304 stainless steel. Teeth are formed around the perimeter of the disk by cutting slits into the disk and bending the resulting tabs.

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  LOUVERED BLADE MOUNTING CONSIDERATION

  Posted in: Mixing and Dispersion

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  Beyond impeller bore configurations, with the Conn styles as well as other louvered or vented styles open area in the center of the impeller must also be considered. Typically, reinforcing discs, taper plates, sandwich the blade to stiffen the disperser disc. Due to the louver placement on the conn blade, the size of these disks, and with small sizes - the diameter of the mounting hub must be considered.

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