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This data is typical of the products made. Packaged in 55 lb. bags (Bulk packaging is also available).

MIN-SIL® Fused Silica

Resin Filler Grades



Particle Size: Min-Sil™ 20 Min-Sil™ 40
  U.S. Alpine Sieve % 100 0 < 0.2
  140 < 0.005 < 0.5
  200 < 1 < 10
  325 < 3 15 – 30
 Microtrac PM 50% μm 9 – 16 19 – 27
 Surface Area m2/gm < 3 1.3 – 2.1


Magnetics:      
  Buck Analyzer ppm < 20 < 20




Chemical Composition:  
  SiO2 > 99.7  %
  Al2O3 < 1,700  ppm
  Fe2O3  < 350  ppm
  TiO2 < 250  pmm
  K2O < 120  ppm
  CaO   < 75  ppm
  Na2O < 50  ppm
  LOI  @ 1000°C < 0.5  %


Electrical Properties:  
  Conductivity <5 µmhos


Physical Properties:  
  Apparent Specific Gravity  2.18 - 2.20 g/cc
  Color  White
   

Thermal Properties:  
  LTE Coefficient (20-700°C)  0.5 - 0.6 x 10-6/°C
   

Standard Packaging:  
  55 pound paper bags 2,200 pounds per pallet