During Covid-19 pandemic we remain in operation on a reduced schedule. We appreciate your patience with any delays in shipment of your order.

Material Safety Data Sheet - Solid Glass Spheres and Microspheres

Precision Polished glass spheres are available for calibration and reference in a range of sizes from 0.7mm to 8.0mm (Other custom sizes available on a custom basis on up to 55mm). Precision Glass Spheres are also available in custom Colored Glass.

Diameter Tolerance: ±20um
Roundness/Sphericity: ≤20um; >99% (Ratio of Width/Length)
Density: Borosilicate: 2.2g/cc+/-0.1g/cc
Soda Lime: 2.5g/cc+/-0.1g/cc
Index of Refraction: Borosilicate: 1.48
Soda Lime: 1.52
Softening Temperature: Borosilicate: 830°C
Soda Lime: 718°C
Melting Point: Borosilicate: 1510°C
Soda Lime: 1445°C
Specific Thermal Conductivity: Borosilicate: 1.14W/K-m
Soda Lime: 1.102W/K-m
Thermal Expansion: Borosilicate: 3.2x10-6K-1 (at 20°C)
Soda Lime: 9.81x10-6K-1 (at 20°C)
Youngs-Modulus: Borosilicate: 64GPa
Soda Lime: 65GPa
Linear Thermal Expansion: Borosilicate: 3.3x10-6K-1 (20-300°C)
Soda Lime: 8.60x10-6>-1 (20-300°C)

In-stock orders usually ship in within one business days. Please contact us for custom size ranges or volume pricing.

Other grades of soda lime glass spherical particles are also available:
Solid Soda Lime Glass Spheres and Microspheres
Solid Borosilicate Glass Microspheres


    Item # Description/Size Status Price Qty
    P-SLGS-2.5 0.69mm - 100piece
    Precision Grade - Polished Soda Lime Solid Glass Spheres 2.5g/cc 0.69mm - 100 pieces
    In Stock $47.25
    P-SLGS-2.5 0.80mm - 100piece
    Precision Grade - Polished Soda Lime Solid Glass Spheres 2.5g/cc 0.80mm - 100 pieces
    In Stock $47.25
    P-SLGS-2.5 0.90mm - 100piece
    Precision Grade - Polished Soda Lime Solid Glass Spheres 2.5g/cc 0.90mm - 100 pieces
    In Stock $47.25
    P-SLGS-2.5 1.01mm - 100spheres
    Precision Grade - Polished Soda Lime Solid Glass Spheres 2.5g/cc 1.01mm - 100 spheres
    In Stock $47.25
    P-SLGS-2.5 1.50mm - 100piece
    Precision Grade - Polished Soda Lime Solid Glass Spheres 2.5g/cc 1.50mm - 100 pieces
    In Stock $48.30
    P-BSGS-2.2 1.99mm - 100pieces
    Precision Grade - Polished Borosilicate Solid Glass Spheres 2.2g/cc 1.99mm - 100 pieces
    In Stock $91.00
    P-SLGS-2.5 2.00mm - 100piece
    Precision Grade - Polished Soda Lime Solid Glass Spheres 2.5g/cc 2.00mm - 100 pieces
    In Stock $51.00
    P-SLGS-2.5 2.49mm - 100piece
    Precision Grade - Polished Soda Lime Solid Glass Spheres 2.5g/cc 2.49mm - 100 pieces
    In Stock $52.50
    P-SLGS-2.5 2.99mm - 100piece
    Precision Grade - Polished Soda Lime Solid Glass Spheres 2.5g/cc 2.99mm - 100 pieces
    In Stock $55.00
    P-BSGS-2.2 2.99mm - 100pieces
    Precision Grade - Polished Borosilicate Solid Glass Spheres 2.2g/cc 2.99mm - 100 pieces
    In Stock $96.60
    P-SLGS-2.5 3.48mm - 100piece
    Precision Grade - Polished Soda Lime Solid Glass Spheres 2.5g/cc 3.48mm - 100 pieces
    In Stock $61.00
    P-SLGS-2.5 3.99mm - 100piece
    Precision Grade - Polished Soda Lime Solid Glass Spheres 2.5g/cc 3.99mm - 100 pieces
    In Stock $65.00
    P-BSGS-2.2 3.99mm - 100pieces
    Precision Grade - Polished Borosilicate Solid Glass Spheres 2.2g/cc 3.99mm - 100 pieces
    In Stock $113.40
    P-SLGS-2.5 4.50mm - 100piece
    Precision Grade - Polished Soda Lime Solid Glass Spheres 2.5g/cc 4.50mm - 100 pieces
    In Stock $67.00
    P-SLGS-2.5 4.98mm - 100piece
    Precision Grade - Polished Soda Lime Solid Glass Spheres 2.5g/cc 4.98mm - 100 pieces
    In Stock $83.00
    P-BSGS-2.2 4.99mm - 100pieces
    Precision Grade - Polished Borosilicate Solid Glass Spheres 2.2g/cc 4.99mm - 100 pieces
    In Stock $151.00
    P-BSGS-2.2 5.99mm - 50pieces
    Precision Grade - Polished Borosilicate Solid Glass Spheres 2.2g/cc 5.99mm - 50 pieces
    In Stock $91.00
    P-SLGS-2.5 6.00mm - 100piece
    Precision Grade - Polished Soda Lime Solid Glass Spheres 2.5g/cc 6.00mm - 100 pieces
    In Stock $99.75
    P-BSGS-2.2 6.00mm - 50pieces
    Precision Grade - Polished Borosilicate Solid Glass Spheres 2.2g/cc 6.00mm - 50 pieces
    In Stock $91.00
    P-BSGS-2.2 6.98mm - 50pieces
    Precision Grade - Polished Borosilicate Solid Glass Spheres 2.2g/cc 6.98mm - 50 pieces
    In Stock $125.48
    P-BSGS-2.2 6.99mm - 50pieces
    Precision Grade - Polished Borosilicate Solid Glass Spheres 2.2g/cc 6.99mm - 50 pieces
    In Stock $125.48
    P-SLGS-2.5 7.00mm - 100piece
    Precision Grade - Polished Soda Lime Solid Glass Spheres 2.5g/cc 7.00mm - 100 pieces
    In Stock $137.00
    P-SLGS-2.5 8.00mm - 50piece
    Precision Grade - Polished Soda Lime Solid Glass Spheres 2.5g/cc 8.00mm - 50 pieces
    In Stock $107.10
    P-SLGS-2.5 9.00mm - 50piece
    Precision Grade - Polished Soda Lime Solid Glass Spheres 2.5g/cc 9.00mm - 50 pieces
    In Stock $135.00
    P-SLGS-2.5 10.00mm - 50piece
    Precision Grade - Polished Soda Lime Solid Glass Spheres 2.5g/cc 10.00mm - 50 pieces
    In Stock $179.55

    $0.00