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Glass Beads

Glass beads are a spherical, iron-free blasting medium. Taking hardened spherical soda lime glass as raw materials, glass beads are a multi-faceted and commonly used media. Micro glass beads are one of the most common reusable blasting media, which is ideal for non-aggressive cleaning and for producing visually attractive surfaces.

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Glass Beads

Glass beads are a spherical, iron-free blasting medium. Taking hardened spherical soda lime glass as raw materials, glass beads are a multi-faceted and commonly used media. Micro glass beads are one of the most common reusable blasting media, which is ideal for non-aggressive cleaning and for producing visually attractive surfaces.

Properties

  • Physical Properties:
  • ≥85%
  • Hardness:
  • 6-7 mohs
  • HRC hardness:
  • 48-52 HRC
  • Grain shape:
  • spherical
  • Melting point:
  • approx. 730°C
  • Specific gravity:
  • approx. 2.5 g/cm3
  • Bulk density:
  • approx. 1.5 – 1.6 g/cm3

Advantages

  • Wide range of sizes,High roundness of the beads
  • High roundness of the beads,High retroreflectivity
  • Low process residues and other impurities,Wide range of different size fractions

Application

  • 01

    Blast-cleaning--removing rust and scale from metallic surfaces, removing mould residues from casting and removing tempering colour.

  • 02

    Surface finishing--finishing surfaces to achieve specific visual effects.

  • 03

    Used as disperser, grinding media and filter material in day, paint, ink and chemical industry.

  • 04

    Road marking.

Glass Beads Specifications

Application Available Sizes
Sandblasting 20# 30# 40# 40# 60# 70# 80# 90# 120# 140# 150# 170# 180# 200# 220# 240# 325#
Grinding 0.8-1mm 1-1.5mm 1.5-2mm 2-2.5mm 2.5-3mm 3.5-4mm 4-4.5mm 4-5mm 5-6mm 6-7mm
Road marking 30-80 mesh 20-40 mesh BS6088A BS6088B

Chemical Composition

SiO2 ≥65.0%
Na2O ≤14.0%
CaO ≤8.0%
MgO ≤2.5%
Al2O3 0.5-2.0%
K2O ≤1.50%
Fe2O3 ≥0.15%

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