Product type: Special Glass/High-Temperature-Resistant Glass. Application: Fireplace, Solar, Laboratory, Sight Glass, etc.. Model: HG- HG02. Function: Optical Function, Thermal Function, Mechanics and Mechanical Function, Biological and Chemical Function.
Overview
The 3mm 4mm Clear Borosilicate High Temperature HMI Cover Outdoor Industrial Display Touch Screen Heat Resistant 450c Ar Coating Tempered Glass is supplied as a display / touchscreen cover glass made from Borosilicate 3.3 or Borosilicate 4.0. Listed geometry: flat & curved shape. Typical applications: Home Appliances, Electronics and Industry. Dimensions, material grade, coating and finish can be quoted to your drawing; the values above are the listed starting point.
Specifications
| Type | Special Glass/High-Temperature-Resistant Glass |
|---|---|
| Shape | Flat & Curved |
| Application | Home Appliances/Electronics/Industry |
| Usage | Fireplace, Solar, Laboratory, Sight Glass, etc. |
| Model NO. | HG- HG02 |
| Structure | Solid |
| Moh's Hardness | 6.5 |
| Function | Optical Function, Thermal Function, Mechanics and Mechanical Function, Biological and Chemical Function |
| Transparency | Transparent |
| Processing Method | Phase & Crystallization |
| Preparation Process | Fusion Method |
| Color | Black/Clear/White |
| Glass Type | Borosilicate 3.3 or Borosilicate 4.0 |
| Quantity | Number of Pieces or Square Meters |
| Edge & Shape | Polished Edge/Custom Shape/ Round Corners? |
| Drilling / Cutouts | Hole Size and Position (If Needed) |
| Thermal Shock | up to 700c |
| Processing | Cutting, Edging, Drilling |
| Destination Country | for Accurate Shipping Quote |
| Continuous Temp | 450c |
| Dimensional Tolerance | 0.5mm |
| Solar | 3-4mm; Sight glass: 5-12mm; Optical: 2-6mm |
| ISO 9001 | 2015 certified quality system |
| Equipment for your borosilicate order | CNC cutting machines for precision panels up to 1830x2440mm |
| Five reasons buyers stay with us | Engineering review before production – we catch issues before cutting glass |
| Supplier | Qingdao Hitech Glass Co.,Ltd |
Technical data
| Parameter | Specification | Your Options |
| Material | Borosilicate 3.3 float glass | Borosilicate 4.0 on request |
| Thickness | 1.5mm – 25mm | Solar: 3-4mm; Sight glass: 5-12mm; Optical: 2-6mm |
| Max Size | 1830 x 2440mm | Custom cut to any dimension |
| Light Transmittance | 92%+ at 3mm | Clear / ultra-clear |
| Refractive Index | 1.47 | Low dispersion |
| Thermal Expansion | 3.3 x10-6/K (20-300C) | Ultra-low CTE |
| Continuous Temp | 450C max | Short-term to 500C |
| Thermal Shock | 200C+ delta T | No cracking under rapid shift |
| Water Resistance | ISO 719 Grade 1 (HGB1) | Hydrolytic Class 1 |
| Acid Resistance | ISO 195 Grade 1 | Alkali resistance ISO 695 Grade 2 |
| Density | 2.23 g/cm3 | Mohs hardness 6.5 |
| Processing | Cut, edge, drill, bend, print | Send your drawing |
| What Are You Sourcing? | What We Provide | Typical Specs |
| Solar thermal collector covers | Large-format cut panels with polished edges | 3-4mm, up to 1830x2440mm |
| Solar water heater panels | Flat borosilicate covers with high transmittance | 3-4mm, weather resistant |
| Laboratory instrument panels | Precision-cut, drilled panels for analysers and equipment | 1.5-6mm, tight tolerance |
| Chemical reactor and tank sight glass | Round or rectangular windows, flange-ready | 5-12mm, beveled edge, drilled holes |
| Pressure gauge and level gauge covers | Cut-to-size discs and rectangles | 5-10mm, polished edge |
| Optical windows and sight ports | Clear flat panels for inspection and laser systems | 2-8mm, optical-grade polish |
| Microscope and imaging covers | Thin flat panels with polished surfaces | 1-3mm |
| Pharmaceutical equipment glass | Chemical-resistant panels for production machinery | 3-10mm, ISO 719 Grade 1 |
| Fire-rated equipment windows | Borosilicate 4.0 panels for furnaces and ovens | 5-12mm, CCC compliant |
| Industrial oven and dryer sight windows | Heat-resistant panels for heat treatment equipment | 4-8mm, beveled edge |
| Prototype to mass production | 10-piece trial up to 10,000+ piece runs | Consistent per batch |
What to specify when you request a quote
- Glass type and thickness — listed as “Borosilicate 3.3 or Borosilicate 4.0”; name the glass (soda-lime, aluminosilicate, borosilicate) and thickness.
- Strengthening — state thermal tempering or chemical strengthening and the required surface compression or impact rating.
- Printing and coatings — listed as “Fireplace, Solar, Laboratory, Sight Glass, etc.”; list silk-screen colours, windows, and any AR / AG / AF coating.
- Outline and edges — listed as “Flat & Curved”; send a drawing with cut-outs, holes and edge finish.
- Optical requirements — give transmission, haze or gloss targets for the viewing area.
Engineering guides for this part
For material grades and coating options, see AR-Coated Glass Materials for High-Transmission Optical Parts. How parts like this are machined and finished is covered in AR Coating Process for Optical Glass Windows – Complete Manufacturing Overview. For an application example, read AR Glass for Appliance Touch Screens: Selection & Integration. Before sending a drawing, check Thermal Conductivity of Quartz Glass & Fused Quartz: A Process Guide. A related standard product is AR-Coated High-Transparency Optical Glass.
