Unibrite                   Port Washington, N.Y. 11050

Phone: 516-551-8414                                             Email: info@unibrite .com

 Silicon Carbide, Aluminum Oxide, Alumina, Glass Beads, Vibratory Compounds

Since 1956

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Data Sheet Fused Silica 

Fused Silica is made from high purity silica which is fused creating a high quality material. It has very low coefficient of expansion with high resistance to thermal shock. Over 99% amorphous it is inert, has excellent chemical stability and extremely low electrical conductivity

                                          Typical Chemical Analysis

                                               SiO2                                                                              99.8%

                                               I2O3                                                                               0.05 

FeO2                                                                                0.015

Na2O                                                                               0.007

K2O                                                                                 0.003

TiO2                                                                                0.010

CaO                                                                                 0.010

MgO                                                                                0.003

                       Physical Data

Magnetic                                                             0.004%

PH                                                                           7.0 Max

Sp. Gravity                                                            2.21 g/cc

Coeff of Thermal Expansion                               0.5 x 10ֿ6/C

Bulk Density                                                         65-75 lb/ft

                                            SIZES 

                                Typical  Percent Retained                

US

MESH

4/10

6/50

10/20

20/50

30/50

50/100

100/200

120F

200F

325F

4

4

 

 

 

 

 

 

 

 

 

6

35

 

 

 

 

 

 

 

 

 

10

52

12

 

 

 

 

 

 

 

 

12

 

 

16

 

 

 

 

 

 

 

16

 

 

42

 

 

 

 

 

 

 

20

8

60

30

1

1

 

 

 

 

 

30

 

15

11

33

20

 

 

 

 

 

40

 

8

 

 

 

 

 

 

 

 

50

 

 

 

59

73

9

 

 

 

 

80

 

 

 

6

5

 

 

 

 

 

100

 

 

 

 

 

77

8

7

4

 

140

 

 

 

 

 

12

 

10

2

 

200

 

 

 

 

 

1

53

16

7

1

325

 

 

 

 

 

 

22

17

14

5

PAN

1

5

1

1

1

1

17

50

76

94

 Fused Silica by PEMCO

Last modified: 12/23/09