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Technical Quality Spheres

Potters Europe' A-series glass beads are widely used for grinding, dispersing, and deagglomerating a variety of materials. Among the materials are magnetic tape oxides, pigments (for paints, coatings, and inks), cosmetics, fine chemicals, pharmaceuticals, agricultural products, and dyestuffs.

Features Benefits
Spherical shape
Spherical media maximize the number of particle-to-particle contacts. Potters' uniform spherical particles provide uniform and predictable milling patterns. The results are highly efficient dispersion and grinding.
Chemically inert Because Potters' glass is virtually free of impurities, it does not react with materials being processed.
Low abrasive wear Potters' smooth glass spheres deliver maximum grinding impact, but they are nonabrasive and do not cause excessive mill wear.
Low liquid absorption The non-porous surface of Potters' glass spheres does not absorb the liquid components of formulations.
Large size selection

Potters’ wide selection enables customers to choose the optimal media for their specific milling technologies. Larger glass spheres accelerate particle size reduction because of their greater mass. Smaller spheres stimulate dispersion because there are more of them in any unit of volume.
High-crush resistance Potters' solid glass spheres are durable for mixing and grinding applications.
Other applications for A-series glass beads include Mechanical Plating, Polishing, Chromatography, Fluidized Beds, Heat Transfer, and Filtration.
Typical Physical and Chemical Properties
Density 2.50 g/cc
Weight 3.70 lb/l
Refractive index 1.51 - 1.52
Crush resistance 14,000 - 36,000 psi
Hardness 5 - 6 (Moh's scale)
Composition soda-lime silica glass
Free silica None


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