Selective Optical Intelligence: Engineered with a nano-scale metallic silver and metal oxide barrier to selectively filter solar radiation—transmitting maximum visible light while reflecting back harmful UV and intense infrared heat waves.
Dual-Coating Processing Technology: Available in both robust Online Hard Coat (Pyrolytic) for high durability and single-pane exposures, and premium Offline Soft Coat (Sputtered) to deliver leading thermal insulation inside Double/Triple Glazing units.
Extreme Seasonal Climate Control: Drastically reduces solar heat gain (low SHGC) in high-temperature summers while reflecting internal HVAC infrared heating back indoors during freezing winters.
Unrivaled Thermal Performance: Offline soft-coat configurations drop emissivity ratings below 0.08, significantly lowering the overall window U-value and qualifying projects for international LEED and green building certifications.
Architectural Versatility Compatibility: Fully optimized to be processed into Tempered Safety Glass, Bent/Curved configurations, Laminated Security Panes, and Hermetically Sealed Insulated Glass Units (IGUs).
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Are you engineering an iconic commercial curtain wall, selecting glass for high-end residential window systems, or trying to achieve stringent energy efficiency benchmarks for a green architectural project? Shandong Weihua Glass manufactures premium, industrial-grade Custom Low-E (Low-Emissivity) Glass designed specifically to satisfy demanding structural engineering specifications, optimize daylighting, and slash long-term HVAC operational energy costs.
Traditional clear float glass acts as a thermal conductor, trapping heat inside during the summer (greenhouse effect) and leaking expensive heating energy during winter. Weihua's Low-E coated glass resolves this bottleneck. By depositing microscopic layers of high-purity silver and protection alloys onto premium float glass, we create an invisible thermal barrier. This enables buildings to maintain pristine visual transparency while rejecting up to 90% of solar thermal infrared waves, securing a comfortable indoor climate year-round.
To match your specific engineering budget and installation configurations, Weihua runs high-capacity lines for both primary low-emissivity coating technologies:
Engineering Performance & Metallurgy | Online Low-E / Pyrolytic | Offline Low-E / Sputtered |
Coating Fabrication Process | Deposited on the glass surface while still hot during the float line manufacturing process (Pyrolytic fusion). | Deposited via vacuum magnetron sputtering on finished glass panes in an isolated cleanroom environment. |
Film Layer Hardness & Durability | Extremely durable and hard. Highly resistant to scratching, oxidation, and direct environmental exposure. | Delicate and prone to oxidation. Must be structurally edge-deleted and sealed immediately inside an Insulated Unit (IGU). |
Emissivity Rating (E-Value) | Approximately 0.15 (Delivers standard, reliable thermal insulation). | ≤ 0.08 (The industry's gold standard for elite thermal shielding). |
Single-Pane Usage | Yes. Can be shipped, cut, tempered, and used as a monolithic sheet without immediate IGU assembly. | No. Must be constructed into double or triple-glazed units to protect the silver layer from air contact. |
Optimal Project Application | Single glazed structural facades, interior partitions, and regional low-budget commercial refits. | High-performance commercial curtain walls, passive houses, cold-climate skylights, and luxury residential windows. |
Technical Feature | Available Specifications & Range |
Base Glass Thickness Options | 4 mm, 5 mm, 6 mm, 8 mm, 10 mm,12 mm, 15 mm |
Coating Layer Configurations | Single Silver (Standard) | Double Silver (Enhanced SHGC) | Triple Silver (Maximum selective blocking) |
Visible Light Transmittance (VLT) | From 30% up to 80% (Customizable depending on glare control and daylight requirements) |
U-Value (W/m²·K) inside IGU | Drop levels down to 1.1 - 1.8 W/(m²·K) (Optimized via argon gas integration) |
Solar Heat Gain Coefficient (SHGC) | Controlled within 0.25 - 0.60 to match both hot tropical and freezing polar zone standards |
UV Ray Rejection Rate | Blocks up to 85% - 99% of fading rays, protecting expensive interior carpets, wood, and fabrics |
Pristine Soft-Coat Edge Deletion & Seal Quality: Offline Low-E glass requires 100% precise mechanical grinding (edge deletion) around the perimeter before sealing into an IGU. If the metal film is not fully removed, humidity will corrode the silver layer, causing catastrophic fogging and film-peeling. Weihua utilizes state-of-the-art automated edge-deletion lines, guaranteeing zero seal degradation for decades of field service.
Micro-Controlled Tempering and Bending Control: Low-E coatings reflect the very infrared heat used to temper the glass in a furnace, which can easily cause uneven heating, warpage, or coating oxidation. Weihua operates specialized forced-convection tempering furnaces with micro-adjustable heating zones, ensuring perfectly flat or precisely curved Low-E safety glass with zero distortion.
One-Stop Consolidated System Assembly: We save your procurement teams from dealing with multiple disjointed suppliers. Weihua manufactures the Low-E coated glass, executes the custom CNC edge-polishing, laminates for security, and seals the final insulated glass units under one unified roof—consolidating your entire facade order into a single bill of lading.
Engineered Safe Packing for Coated Glass: Coated glass is highly sensitive to humidity and friction scratch during transit. We wrap every Low-E crate in heavy-duty moisture barrier films, insert dry-absorption desiccant packs, and separate each glass sheet with specialized non-reactive powder, ensuring pristine, scratch-free coated surfaces upon arrival at your site.
