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

 

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