SPHERIGLASS® Solid Glass Microspheres

SPHERIGLASS® solid glass spheres are microspheres with a density of 2.5 g/cc. The spheres are very strong, with a crush strength in excess of 30,000 psi. Moh’s hardness is 6.0-6.5. Glass spheres have very low oil absorption, about 18 g oil/100 g spheres. Because the spheres are nonporous, they do not absorb resin in a polymer system. SPHERIGLASS spheres are available in two glass compositions: A-glass (soda-lime glass) and E-glass (borosilicate glass). In most thermoset and thermoplastic resin systems, A-glass is satisfactory. E-glass is recommended for use with polycarbonate, acetal, and PTFE systems or other alkali-sensitive resins. SPHERIGLASS spheres are available with coupling-agent coatings. Use of coated spheres is recommended when better adhesion between glass and resin is needed. Please contact Potters for a recommendation.

The High-performance polymer additives.
  • Fewer defects: excellent mold flow, uniform dispersion, improved surface appearance
  • Very high filler loading: precise geometry for uniform dispersion, better surface wetting, closer packing
  • Dimensional stability: reduced molded part shrinkage and warpage; improved part flatness
  • Improved product characteristics: higher flex modulus, better abrasion resistance and surface hardness
  • Available uncoated, or with coupling agent coatings designed to optimize performance in specific resin systems
  • Partial replacement for expensive fiberglass

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  • SPHERIGLASS® A-Glass 1922 by Potters Industries LLC, are solid, clear, soda-lime glass microspheres with a tapped bulk density of 1.57 g/cc. It has a particle size range of 150-250 microns. Glass spheres are nonporous with low oil absorption and do not absorb resin in a polymer system. Grade 1922 offers excellent chemical resistance, low oil absorption and are used in the automotive, electrical, engineering, household appliance, adhesives, paint, photographic, packaging, and construction industries.
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  • SPHERIGLASS® A-Glass 2024 by Potters Industries LLC, are solid, clear, soda-lime glass microspheres with a tapped bulk density of 1.57 g/cc. It has particle size range of 106–212 microns. Glass spheres are nonporous with low oil absorption and do not absorb resin in a polymer system. Grade 2024 offers excellent chemical resistance, low oil absorption and are used in the automotive, electrical, engineering, household appliance, adhesives, paint, photographic, packaging, and construction industries.
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  • SPHERIGLASS® A-Glass 2429 by Potters Industries LLC, are solid, clear, soda-lime glass microspheres with a tapped bulk density of 1.57 g/cc. It has an average value particle size of 70-100 microns. Glass spheres are nonporous with low oil absorption and do not absorb resin in a polymer system. Grade 2429 offers excellent chemical resistance, low oil absorption and are used in the automotive, electrical, engineering, household appliance, adhesives, paint, photographic, packaging, and construction industries.
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  • SPHERIGLASS® A-Glass 2530 by Potters Industries LLC, are solid, clear, soda-lime glass microspheres with a tapped bulk density of 1.57 g/cc. It has an average value particle size of 60-70 microns. Glass spheres are nonporous with low oil absorption and do not absorb resin in a polymer system. Grade 2530 offers excellent chemical resistance, low oil absorption and are used in the automotive, electrical, engineering, household appliance, adhesives, paint, photographic, packaging, and construction industries.
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  • SPHERIGLASS® 3000 by Potters Industries LLC, are solid glass microspheres with a tapped bulk density of 1.59 g/cc. It has an average value particle size of 30-50 microns. Glass spheres are nonporous with low oil absorption and do not absorb resin in a polymer system. Grade 3000 offers excellent chemical resistance, low oil absorption and are used in the automotive, electrical, engineering, household appliance, adhesives, paint, photographic, packaging, and construction industries.
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  • SPHERIGLASS® E-Glass 3000E is a solid, clear, soda-lime glass in a microbead form. This product has an average diameter range of 30-50 microns and a US mesh size of 325. Spheriglass® E-Glass 3000E is most commonly used as an additive in thermoplastic and thermosetting adhesive formulation applications.
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  • SPHERIGLASS® A-Glass 4000 by Potters Industries LLC, are solid, clear, soda-lime glass microspheres with a tapped bulk density of 1.57 g/cc. It has an average value particle size of 25 microns. Glass spheres are nonporous with low oil absorption and do not absorb resin in a polymer system. Grade 4000 offers excellent chemical resistance, low oil absorption and are used in the automotive, electrical, engineering, household appliance, adhesives, paint, photographic, packaging, and construction industries.
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  • SPHERIGLASS® A-Glass 5000 by Potters Industries LLC, are solid, clear, soda-lime glass microspheres with a tapped bulk density of 1.62 g/cc. It has an average value particle size of 7-10 microns. Glass spheres are nonporous with low oil absorption and do not absorb resin in a polymer system. Grade 5000 offers excellent chemical resistance, low oil absorption and are used in the automotive, electrical, engineering, household appliance, adhesives, paint, photographic, packaging, and construction industries.
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For samples, technical data sheets (TDS), safety data sheets (SDS) or general questions, please contact a specialty chemical representative.
Request a Quote Request a Sample
Call Us: 630.629.6600

The Cary Company is an authorized distributor of Potters Industries SPHERIGLASS® Solid Glass Microspheres, and Q-CEL® and SPHERICEL® Hollow Glass Microspheres product lines.

For samples, technical data sheets (TDS), safety data sheets (SDS) or general questions, please contact a specialty chemical representative.

Request a Quote Request a Sample
Call Us: 630.629.6600