Name: Laminated Tempered Glass
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Laminated Tempered Glass

Description:
Tempered glass is a type of safety glass processed by controlled thermal or chemical treatments to increase its strength compared with normal glass. When broken, it shatters into small, blunt pieces, reducing the risk of injury.
Applications:
Widely used in facades, doors, partitions, windows, and shower enclosures.

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PRODUCT DESCRIPTION

Tempered Glass Definition

Tempered glass is a heat-treated safety glass that is approximately 4–5 times stronger than regular annealed glass. It breaks into small, blunt fragments to reduce injury risk.

Key Features

High mechanical strength

Thermal shock resistance

Safe breakage pattern

Heat resistance up to 250°C

Applications

Building facades and curtain walls

Glass doors and partitions

Shower rooms and bathroom enclosures

Balustrades, railings, and staircases

Furniture and appliances (e.g. tabletops, oven doors)

Subtypes

Flat tempered glass

Curved tempered glass

Printed tempered glass (with decorative patterns)

Silk screen tempered glass (with solid or dotted ceramic prints)

Insulated tempered glass (for energy efficiency)

Category	Parameter	Standard Example	Technical Notes
Dimensions	Min. Size	300×300 mm	Most sizes customizable
	Max. Size	3300×13000 mm
Structural Composition	Glass Layer Thickness (mm)	Single layer: 3+3, 5+5, 6+6	Thickness affects load-bearing and impact resistance.
		Double layer: 6+6+6, 8+8+8
	Interlayer Material Type	PVB (Standard, 0.38/0.76/1.52mm)	PVB: Cost-effective; SGP: 5x stronger than PVB; EVA: Ideal for curved glass
		SGP (High-strength, 1.52/2.28mm)
		EVA (Flexible)
	Visible Light Transmittance	Transparent PVB: 88%~92%	Customizable colors/patterns.
		Colored PVB: 40%~70%
		Frosted PVB: 50%~60%
Safety Performance	Impact Resistance Rating	EN 12600 1B1 (5mm+0.76mm PVB)	1B1: 1kg steel ball drop from 1.2m
		2B2 (8mm+1.52mm PVB)	2B2: 2kg steel ball drop from 1.2m
	Post-Breakage Behavior	PVB: Fragments adhere to interlayer	Complies with BS 6206 safety standards
		SGP: Cracks without shattering
Optical Performance	UV Blocking Rate	Standard PVB: ≥99%	Protects indoor items from fading.
		UV-specialized interlayer: ≥99.9%
	Optical Distortion (Waviness)	≤0.1% (ASTM C1048 compliant)	High-precision lamination reduces deformation.
Mechanical Performance	Bending Strength (MPa)	6mm laminated: ≥50	Static load test (ASTM C1172).
		8mm laminated: ≥70
	Edge Peel Strength (N/mm)	PVB: ≥15	Maintains ≥90% strength after humidity aging tests
		SGP: ≥25
Processing	Pre-press Temperature/Pressure	PVB: 120~140°C/1.2~1.5MPa	Ensures bubble-free bonding.
		SGP: 135~150°C/1.5~2.0MPa
	Autoclave Cycle	PVB: 2~4 hours	Pressure: 12~14 bar.
		SGP: 4~6 hours
Edge Treatment	Polishing	Fine grinding (R-angle ≤0.5mm)	Reduces stress concentration during installation.
		Mirror polishing
Architectural Safety	Basic anti-shatter type	6mm tempered + 0.76mm PVB + 6mm tempered, U-value 2.8, Rw 34
High-end Curtain Walls	Double-layer with thermal insulation	6mm Low-E + 1.52mm SGP + 6mm Low-E, U-value 1.6, SHGC 0.35
Sound Insulation	Laminated + Insulated Glass Unit (IGU)	5mm+12A+5mm (IGU) + 0.76mm PVB +5mm, Rw 42, STC 38
Dimensions	Min. Size	300×300 mm	Most sizes customizable
	Max. Size	3300×13000 mm

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