Sizes and Grades

Lighting

Lighting A SG25 2-40 Mercury, tungsten-halogen <5 ppm
B SG25 4-40 Metal-halide, speciality <1 ppm
N SG25 4-40 High (OH), unbaked <100 ppm
BZ SG26 10-40 Ozone-free (UV absorbing) <1 ppm
Mid range sizes     41-89 General use <30 ppm
Semiconductor SC SG25 4-40 1.0-3.0 wall <30 ppm
SC SG25, SG27 90-100 Direct draw, 2.5-4.5 wall <30 ppm
SCH SG25, SG27 125-210 Direct draw, 5.0-6.5 wall <30 ppm
SCR SG25, SG27 150-500 Resize, 3.0-7.0 wall <35 ppm
SCR SG28, SG29 150-500 Resize, 3.0-7.0 wall <10 ppm
Baked SG25, SG27 ----- ----- <10 ppm
All materials can be used for general glassblowing fabrication.
At Multi-lab large stocks are held across the complete range of materials.