HGMS

ELMINAS SPHERES® HGMS are hollow glass microspheres based on silicate glass. The almost perfect spherical shape ensures the lowest surface area in relation to volume. Due to the very low specific surface area and by the spherical shape caused ball-bearing effect, the influence on viscosity of liquid systems is significantly lower compared to irregularly shaped fillers.

The range includes a comprehensive selection of different grades. In addition to low density grades, the range also includes high-strength grades to cover the entire spectrum of possible applications.

Features and Benefits :

  • Non-combustible.
  • Reduced density/ reduced weight of final products.
  • Chemically inert.
  • Improved flow and working properties.
  • Improved mechanical properties including impact strength and dimensional stability.
  • Improved thermal or acoustic insulation.

Application Fields :  

  • Drilling Fluids

  • Sealants and Adhesives

  • Thermal Insulation Paints

  • Paints and Coatings

  • Plastics

Technical Data : 

 

Physical Parameters

 

Products

 

True Density (g/ cm3) (Specific Gravity)

Particle Size

 

Compressive Strength (MPa / psi)

Flotation (%)

D50 (µm)

D90 (µm)

 

HGMS - 20

 

0.20

 

65

 

110

 

4 / 580

 

≥ 90

 

HGMS - 30

 

0.30

 

55

 

85

 

10 / 1450

 

≥ 90

HGMS - 40

 

0.40

 

40

 

70

 

28 / 4061

 

≥ 90

HGMS - 50

 

0.50

 

40

 

60

 

55 / 7977

 

≥ 90

HGMS - 60

 

0.60

 

40

 

65

 

83 / 12038

 

≥ 90

Typical Chemical Composition

SiO2    (wt%)

57 - 88

NaO2 (wt%)

8 - 16

CaO   (wt%)

4 - 12

B2O3 (wt%)

15 - 19

Other (wt%)

10 - 20



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