Low Iron Soda Lime Glass

Glass Type: Soda lime


Soda lime is created by using high quality grades of silica sand that are virtually free of iron oxides. This results in a transparent, “water white” glass that has higher transmission characteristics compared to normal soda lime.

Thermal PropertiesMechanical Properties
Thermal Coefficient of Expansion84.5 x 10-7/°C (0 °C - 300 °C)Density2530 kg/m3
Annealing Point546°C/ 1015° FMoh's Hardness5 to 6
Softening Point726°C /1340° FYoung’s Modulus7.2x1010 Pa
Strain Point514°C/ 957°FPoisson’s Ratio0.23
Chemical PropertiesElectrical Properties
Hydrolytic ResistanceClass 3Dielectric Constant(at 1 MHz and 20 °C) 7.0
Acid ResistanceN/AResistivityLog (Ω . cm) 8.5
Alkali ResistanceN/ADielectric Strength
Optical Properties
Refractive Index1,511 (1 μm)