Back to productE Glass Marble

This prouct belongs to E - glass, easy to melt and resistant to electricity suitable for making fiberglass tissue as substrate for PCB laminate, It also can be used to produce micro-fiberglass wool and glass wool products for the filtration and electrical insulation,and fiberglass yarn for electric insulation and roving for reinforcement.

Specification
Composition
Physical Characteristic
SiO2
54.1¡À 0.63
 Density (g/m3)
2.52 ¡À 0.05
B2O3
8.8 ¡À 0.5
 Marble Dimension (mm)
11.0 ¡À 0.4
23.0 ¡À1.0
Al2O3
14.6 ¡À 0.4
 Marble Weight (g/marble)
4 - 8
CaO
16.6 ¡À 0.3
 Little Ton Point
Ca 695 ¡À 10 °C
MgO
4.6 ¡À 0.3
 Viscosity Ca

Log 2.5-1180 ¡À 20 °C
Log 3.0-1190 ¡À 20 °C
Log 2.5-1180 ¡À 20 °C
Log 3.0-1190 ¡À 20 °C
K2O
< 0.8
 Upper Devitrification T
Ca 930 °C
Na2O
 Lower Devitrification T
Ca 730 °C
Fe2O3
< 0.5
 Color
White to light green

Appearance:

Non-ceramics, bubbles not bigger than 0.5mm.
Small bubbles, outside fissures and rakes are allowed

 

Packing:

Packed in PP woven bags. Net weight: one metric ton.

 

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