Home
Colors
Casting
Nuggets
Tools
Blocks
Molds
Dichroic
Metal Leaf
Books
Lampworking
Clothing
Misc
Sales
Colors
Search

Coefficient Tables

Vendor

Calculated C.O.E.*

Measured C.O.E.

Reichenbach

89 x 107

91-94 x 10-7

Kugler/Friedrich

83-86 x 10-7

93 x 10-7

Zimmermann

86-90 x 10-7

94 x 10-7

Bullseye

 

90 x 10-7

Lenox Crystal

 

94.4 x 10-7

Gaffer™ Casting Glass

Linear expansion coefficient: 92 x 10-7 (20-300° C)

Density: 3.6g/cc (Or 2.08 ounces/cu. in or 3.73 ounces/US fluid ounce)

Casting Temperature (Recomended): 780-850° C (1426-1562°F)

Annealing temperature (tg): 486° C (908° F)

Strain Point: 439° C (822° F)

Base Glass Coefficient of Expansion

Vendor

Calculated C.O.E.*

Measured C.O.E.

Gaffer™ Batch

89.6 x 10 -7

95.5 x 10-7 (25-300°C)

East Bay Batch (Regular)

89.9 x 10-7

96.6 x 10-7

East Bay Batch (SF State)

92.75 x 10-7

94.9 x 10-7

East Bay 91

91 to 85.5 x 10-7

91.5 x 10-7

Spruce Pine 87

89.6 x 10-7

97.3 x 10-7

Spruce Pine 83

83 x 10-7

91-92 x 10-7

Fenton

 

92 x 10-7

Gabbert #4

 

89.7

Gabbert #6

 

92.0

Lenox

 

94.4 x 10-7

Borosilicate

 

34-35 x 10-7

Louis (new formula)

 

87.5 x 10-7

* Calculated numbers are ascertained by standards established by English and Turner.


GlassColor.com
 
 
All contents copyright © 2004 Olympic Color Rods, Seattle WA, unless otherwise noted. All rights reserved.
To report technical problems, contact the webmaster. Web design by Ockfen & Associates.