At Fuxin Glass, we not only do Physical tempering, but also chemical tempering. Our tempered glass is 4-5 times stronger than annealed glass of the same thickness, and can withstand greater temperature changes and physical stresses. Widely applicable to construction, automobiles, furniture, electrical appliances, and special industrial uses.
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Item |
Physical Tempering |
Chemical Tempering |
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Processing Principle |
Thermal Stress Strengthening: Glass is heated to its softening point and then rapidly cooled (quenched). This creates high surface compressive stress and internal tensile stress. |
Chemical Strengthening: Glass is immersed in a molten salt bath, where smaller sodium ions in the glass surface are replaced by larger potassium ions from the bath, creating a deep compressive stress layer. |
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Key Features |
• High strength, safety breakage (small granular pieces) • Slight optical distortion (quench marks) • Cannot be cut, drilled, or reworked after tempering • Cost-effective, suitable for high-volume production |
• Very high surface strength, hardness, and flexural strength • No optical distortion, excellent flatness • Suitable for complex shapes; can be cut after strengthening (edges become fragile) • Low process temperature, minimizes glass deformation |
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Typical Applications |
• Architectural Glass: Curtain walls, windows, doors, partitions, railings • Appliance Glass: Oven doors, microwave panels, refrigerator shelves • Furniture & Interior: Tabletops, shower enclosures • Automotive Glass: Side and rear windows |
• Consumer Electronics: Smartphone/tablet cover glass, smartwatch crystals • Precision & Optics: Aviation windows, camera lenses, sensors • Thin Glass Products: Bullet-resistant glass, lab ware, special lenses |
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Processable Specifications |
• Thickness: Usually 3mm – 25mm (most effective above 3mm) • Size: Limited by furnace; max. up to ~3m x 6m or larger; minimum size requirements apply |
• Thickness: Ideal for 0.5mm – 3mm thin glass (can process thicker glass but less economical) • Size: Limited by salt bath tank; better suited for smaller or precision components |
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Selection Guide |
The go-to choice for most general applications requiring thickness, strength, safety breakage, and cost-effectiveness. |
The specialist choice for applications requiring ultra-thin glass, extreme strength, superior flatness, or post-strengthening machining. |