Borosilicate 3.3 serves as a material of truly functional and wide applications:
1). Household electrical appliance (panel for oven and fireplace, microwave tray etc.);
2). Environmental engineering and chemical engineering (Lining layer of repellence, autoclave of chemical reaction and safety spectacles);
3). Lighting (spotlight and protective glass for jumbo power of floodlight);
4). Power regeneration by solar energy (solar cell base plate);
5). Fine instruments (optical filter);
6). Semi-conductor technology (LCD disc, display glass);
7). Iatrology and bio-engineering;
8). Safety protection (bullet proof glass)
List of Thickness and Tolerance
Thickness mm Tolerance mm Thickness mm Tolerance mm
1.50 ±0.20 4.00 ±0.15
2.00 ±0.20 5.00 ±0.15
2.25 ±0.20 5.50 ±0.15
2.75 ±0.20 6.00 ±0.15
3.0 ±0.20 6.50 ±0.20
3.30 ±0.20 7.50 ±0.30
3.80 ±0.15 8.00 ±0.30
III. Performance of the Product
1). Mechanical Performance
Density ρ 2.23±0.02g/cm3
2). Thermodynamic Performance
Thermal expansion coefficient (0-300) 3.3±0.1×10-6K-1
Softening point 820±10
Strain point 516±10
Caloricity (20-100) 0.82KJ × (kg×K)-1
Thermal coefficient 1.2W×m×K-1
Thermal shock resistance 180K
Strengthening type 300K
Identical temperature difference 100K
Strengthening type 300 K
Maximum working temperature Short time(<10h): 500oC
Long time(>10h): 450oC
3). Chemical Performance
Water resistance ISO719/DIN12111 HGB1/ISO720 HGA1
Acid resistance ISO1776/DIN12116 1
Alkali resistance ISO695/DIN52322 A2
4). Optical Property
Refractive index Nd: 1.47384
Transmittance spectrum curve
5). Electrical Property
Specific resistance lgρ 8.0Ω×cm at 250
Dielectric dissipation fraction tan σ (1 megacycle at 20): 38×10-4
Dielectric constant ε=4.7
IV. Means of Processing for Customers
Cutting
Round corner
Round edge
Surface fine polishing
Hole drilling
Coating
Surface printing and sand blasting
Thermal bending
Audited Supplier 
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