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Low-E Laminated Glass
Description:
Laminated glass consists of two or more glass layers bonded with an interlayer (usually PVB or SGP). Even if broken, the fragments remain adhered to the interlayer, offering high safety and sound insulation.
Applications:
Commonly used in skylights, curtain walls, railings, and high-security areas.
Tel: +86 15866678989
WhatsApp: +86 15866678989
E-mail: info1@wenshengglass.com
PRODUCT DESCRIPTION

Laminated glass is composed of two or more layers of glass bonded by a plastic interlayer, usually PVB (polyvinyl butyral) or SGP (ionoplast). Even if broken, the glass remains adhered to the interlayer.


Key Features

High impact resistance

Shatter-proof and anti-theft

Excellent sound insulation


UV filtering

Customizable with color films or printed interlayers


Applications

Skylights and overhead glazing

High-rise building facades

Banks, airports, and public buildings

Sound barriers and automotive windshields

Floor panels and stair treads


Subtypes

Tempered laminated glass

Insulated laminated glass

Bent laminated glass

Colored or tinted laminated glass

Printed laminated glass

Low-E laminated glass (for energy-saving)


CategoryParameterStandard ExampleTechnical Notes
DimensionsMin. Size300×300 mmMost sizes customizable
Max. Size3300×13000 mm
Structural CompositionGlass Layer Thickness (mm)Single layer: 3+3, 5+5, 6+6Thickness affects load-bearing and impact resistance.
Double layer: 6+6+6, 8+8+8
Interlayer Material TypePVB (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 TransmittanceTransparent PVB: 88%~92%Customizable colors/patterns.
Colored PVB: 40%~70%
Frosted PVB: 50%~60%
Safety PerformanceImpact Resistance RatingEN 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 BehaviorPVB: Fragments adhere to interlayerComplies with BS 6206 safety standards
SGP: Cracks without shattering
Optical PerformanceUV Blocking RateStandard 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 PerformanceBending Strength (MPa)6mm laminated: ≥50Static load test (ASTM C1172).
8mm laminated: ≥70

Edge Peel Strength (N/mm)PVB: ≥15Maintains ≥90% strength after humidity aging tests
SGP: ≥25
ProcessingPre-press Temperature/PressurePVB: 120~140°C/1.2~1.5MPaEnsures bubble-free bonding.
SGP: 135~150°C/1.5~2.0MPa

Autoclave CyclePVB: 2~4 hoursPressure: 12~14 bar.
SGP: 4~6 hours
Edge TreatmentPolishingFine grinding (R-angle ≤0.5mm)Reduces stress concentration during installation.
Mirror polishing
Architectural SafetyBasic anti-shatter type6mm tempered + 0.76mm PVB + 6mm tempered, U-value 2.8, Rw 34
High-end Curtain WallsDouble-layer with thermal insulation6mm Low-E + 1.52mm SGP + 6mm Low-E, U-value 1.6, SHGC 0.35
Sound InsulationLaminated + Insulated Glass Unit (IGU)5mm+12A+5mm (IGU) + 0.76mm PVB +5mm, Rw 42, STC 38
DimensionsMin. Size300×300 mmMost sizes customizable
Max. Size3300×13000 mm


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