Northstar

These versatile borosilicate rods are compatible with Pyrex. Northstar colors may be layered, striped, swirled, combed, hobnailed, encased, blown, etc. Many of these colors "strike" to another color when reheated. Coefficient of Expansion is 33 x 10-7° C. Rod length is approximately 20", rod diameter is approximately 1/4", rod weight is approximately 1.33 oz., softening point is 1510° F., and the annealing point is approximately 1040° F. Northstar is sold by the pound. Must buy entire rod.

Cline
Number

Manuf.
Number

Price
Code

Density
Scale


Color  

Striking
Color

#5201

NS-01W

53

 

Cobalt Blue

 

#5204

NS-04W

53

 

Dark Multi

X

#5206

NS-06W

56

 

Dark Orange

X

#5207

NS-07W

57

 

Ruby

X

#5209

NS-09W

54

 

Yellow

X

#5210

NS-10W

55

 

White

 

#5211

NS-11W

55

 

Jade

 

#5213

NS-13W

57

 

Amber Purple

X

#5215

NS-15W

55

 

Turquoise

X

#5217

NS-17W

58

 

Aqua

 

#5223

NS-23W

55

 

Pink

 

#5224

NS-24W

53

 

Green Transparent

 

#5227

NS-27W

58

 

Green Exotic

X

#5228

NS-28W

58

 

Blue Exotic

X

#5229

NS-29W

58

 

Red Exotic

X

#5232

NS-32W

55

 

Violet

 

#5235

NS-35W

55

 

Black Hole

 

#5237

NS-37W

56

 

Root Beer

X

#5241

NS-41W

55

 

Butterscotch

X

#5243

NS-43W

55

 

Rust