4SG Insulated Glass

Technical Parameters

Product Features and Applications

The core advantage of 4SG insulating glass lies in "warm-edge sealing + high-efficiency energy saving". It adopts integrated warm-edge sealing tape to replace traditional aluminum spacers, completely eliminating the edge cold bridge effect and avoiding condensation and mildew on glass edges in winter. The U-value is as low as 1.4 W/(㎡·K), far exceeding that of traditional insulating glass. Equipped with Low-e coating and high-purity argon gas filling, the infrared blocking rate reaches ≥85%, blocking high temperature in summer and locking heat in winter. Meanwhile, integrated sealing eliminates manual gluing errors, with an annual air leakage rate ≤0.5%, ensuring more stable sealing performance.

Applicable scenarios cover all types of energy-saving buildings:

Residential applications: Suitable for ordinary residences, old community renovation, and noise-sensitive residential buildings facing streets; can directly replace traditional glass without modifying the original frame.

Commercial applications: Used in office buildings, ordinary hotels, schools and shops to meet general energy-saving and sound insulation requirements.

Special scenarios: Adaptable to severe cold regions in northern China (anti-cold bridge) and skylights of multi-story buildings, balancing energy saving and installation convenience.

It can be equipped with single-silver/double-silver Low-e coating to flexibly adapt to different climate regions and energy-saving budgets.

Production Details

The whole production process adopts an automated assembly line. The base glass is high-quality float glass, which undergoes water-free and dust-free cleaning and vacuum drying before entering the core process: the integrated warm-edge sealing tape is precisely bonded to the glass through high-precision equipment, built-in high-efficiency desiccant absorbs water vapor, and high-purity argon gas (concentration ≥90%) is filled to improve thermal and sound insulation performance; Low-e coating is deposited on the inner side of the cavity as required, and finally full tempering treatment is carried out to enhance mechanical properties. There is no manual gluing in the whole process, avoiding sealing errors and ensuring product consistency.

The warm-edge sealing tape is made of weather-resistant polymer material, which can withstand temperature changes from -40℃ to 80℃, with excellent anti-aging and UV resistance, avoiding sealing failure caused by thermal expansion and contraction. The glass edge is finely ground and chamfered, without burrs or edge chipping, reducing stress concentration and breakage risk. The built-in desiccant absorbs water vapor in the cavity for a long time to prevent fogging and condensation. After full tempering treatment, the glass breaks into obtuse particles, ensuring safe use, and the overall service life is ≥20 years.

Summary of Core Product Advantages

No Thermal Bridge with Warm Edge: Integrated tape replaces aluminum spacers, completely solving edge condensation, ensuring more uniform indoor temperature in winter, and suitable for severe cold areas.

High Airtightness and Durability: No manual gluing errors, annual air leakage rate ≤0.5%, sealing performance far exceeds traditional processes, service life ≥20 years.

Convenient and Efficient Installation: Same size and weight as traditional insulated glass, can be directly replaced without frame modification, making renovation of old residential communities more convenient.

Reliable Safety Performance: Full tempering treatment ensures strong impact resistance, finely ground edges avoid stress concentration, suitable for various scenarios of high and low-rise buildings.

Cost-Effective Energy Saving: Balances energy-saving effect and cost, more cost-effective than multi-panel glass and triple-silver Low-e glass, suitable for bulk procurement projects.

Comparison with Similar Products

Structure and Design Description

4SG Insulated Glass

The core structure of 4SG insulated glass is mainly double-glass single-cavity and triple-glass double-cavity, with common specifications as follows:

Double-glass single-cavity (5+12A+5): Basic version, U-value 2.0-2.2 W/(㎡·K), sound insulation ≥40 dB, suitable for ordinary residences and shops with balanced cost performance;

Double-glass single-cavity (6+12A+6): Thickened version, U-value 1.8-2.0 W/(㎡·K), stronger impact resistance, suitable for noise-sensitive areas;

Triple-glass double-cavity (5+12A+5+12A+5): High-end version, U-value 1.4-1.8 W/(㎡·K), sound insulation ≥45 dB, suitable for severe cold areas and office building curtain walls.

It can be combined with laminating process to make 4SG laminated insulated glass, which has both energy-saving and explosion-proof properties.

In terms of design, it supports customization of light transmittance (60%-80%) and color, with optional colors such as light gray, light blue, colorless transparent, adapting to various building facade styles; it supports customization of conventional and non-standard sizes (maximum customizable 2440mm×3660mm), suitable for doors, windows, curtain walls, daylight roofs and other structures. During installation, special pressure strips and neutral glass glue are used for fixing to ensure uniform stress on the glass, and reasonable expansion space is reserved at the edges to avoid breakage caused by excessive temperature difference. It is forbidden to disassemble the cavity privately to prevent damage to the warm-edge sealing structure.

Multi-Panel Super Energy-Saving Glass

The core structure of multi-panel super energy-saving glass is mainly triple-glass double-cavity and four-glass triple-cavity, with common specifications as follows:

Triple-glass double-cavity (5+12A+5+12A+5): Basic version, U-value 1.2-1.5 W/(㎡·K), balanced cost performance, suitable for general high-end energy-saving buildings;

Triple-glass double-cavity (6+12A+6+12A+6): Thickened version, U-value 1.0-1.2 W/(㎡·K), sound insulation ≥48 dB, suitable for severe cold/hot areas;

Four-glass triple-cavity (5+12A+5+12A+5+12A+5): Ultimate version, U-value ≤0.8 W/(㎡·K), sound insulation ≥50 dB, suitable for high-standard scenarios such as passive houses and laboratories.

It can be combined with laminating process to make multi-panel laminated energy-saving glass, which has both explosion-proof and energy-saving effects.

In terms of design, it supports customization of light transmittance (50%-75%) and color, with optional colors such as light gray, light blue, colorless transparent, adapting to various building facade styles; it supports customization of conventional and non-standard sizes (maximum customizable 2440mm×3660mm), suitable for curtain walls, special-shaped doors and windows, floor-to-ceiling windows, daylight roofs and other structures. During installation, it is necessary to ensure uniform stress on the glass, use special load-bearing frames and structural glue for fixing, reserve reasonable expansion space at the edges to avoid breakage caused by excessive temperature difference or uneven stress, and it is forbidden to disassemble the cavity privately to prevent damage to the sealing structure.

Clear Glass

Clear glass can adopt three basic structures: "single-layer tempered", "laminated tempered" and "insulated tempered" according to application scenario requirements:

Single-layer tempered version (commonly 5-8mm): Suitable for ordinary doors, windows and indoor partitions, balancing daylighting and basic safety;

Laminated tempered version (commonly 5+0.76PVB+5): Suitable for low-rise daylight roofs and balcony enclosed windows, with explosion-proof and anti-falling properties;

Insulated tempered version (commonly 5+12A+5): Suitable for doors and windows in areas with large temperature differences, balancing basic heat and sound insulation effects.

In terms of design, it supports customization of light transmittance (60%-80%) and color, with optional colors such as light gray, light blue, colorless transparent, adapting to various building facade styles; it supports customization of conventional and non-standard sizes (maximum customizable 2440mm×3660mm), suitable for curtain walls, special-shaped doors and windows, floor-to-ceiling windows, sunrooms and other structures. During installation, no special frame is required, it can directly replace traditional insulated glass, fixed with special pressure strips and glass glue, and reasonable expansion space is reserved at the edges to avoid glass breakage caused by excessive temperature difference. It is forbidden to disassemble the cavity privately to prevent damage to the sealing structure.

Low-e Glass

The core structure of Low-e glass is mainly insulated combination, with common types and specifications as follows:

Single-silver Low-e insulated glass (5+12A+5/6+12A+6): Suitable for general energy-saving buildings with balanced cost performance;

Double-silver Low-e insulated glass (5+12A+5): Better energy-saving performance, U-value ≤2.2, suitable for severe cold/hot areas;

Triple-silver Low-e insulated glass (5+12A+5): Ultimate energy saving, U-value ≤1.8, suitable for passive houses and high-end office buildings.

It can be combined with laminating process to make Low-e laminated insulated glass, which has both energy-saving and explosion-proof properties.

In terms of design, it supports customization of light transmittance (50%-75%) and color, with optional colors such as light gray, light blue, colorless transparent, adapting to various building facade styles; it supports customization of conventional and non-standard sizes (maximum customizable 2440mm×3660mm), suitable for curtain walls, special-shaped doors and windows, floor-to-ceiling windows, daylight roofs and other structures. During installation, it is necessary to ensure uniform stress on the glass, use special load-bearing frames and structural glue for fixing, reserve reasonable expansion space at the edges to avoid glass breakage caused by excessive temperature difference or uneven stress, and it is forbidden to disassemble the cavity privately to prevent sealing failure.

Coated Glass

The core structure of coated glass is divided into two categories:

Tempered coated glass (commonly 5-8mm): Suitable for low-rise doors, windows and indoor partitions, balancing sun shading, safety and basic protection;

Insulated coated glass (commonly 5+12A+5): Suitable for high-rise doors, windows, curtain walls and projects in areas with large temperature differences. The coating layer faces the inner side of the insulated cavity, balancing sun shading, heat insulation and sound insulation. High-purity argon gas can be filled to improve heat insulation effect.

In terms of design, it supports customization of light transmittance (50%-80%) and color, with optional colors such as light gray, light blue, colorless transparent, adapting to various building facade styles; it supports customization of conventional and non-standard sizes (maximum customizable 2440mm×3660mm), suitable for curtain walls, special-shaped doors and windows, floor-to-ceiling windows and other structures. During installation, strictly ensure that the coating layer faces the inner side of the insulated cavity, fixed with the frame through special structural glue and pressure strips, and expansion space is reserved at the edges to avoid glass breakage caused by temperature difference.

Art Glass

The core structure of art glass is divided into two categories:

Tempered art glass (commonly 5-8mm): Suitable for indoor partitions, background walls, sliding doors and other scenarios, balancing decoration and basic safety;

Laminated tempered art glass (commonly 5+0.76PVB+5): Suitable for low-rise shop windows, balcony glass, outdoor landscape windows, with explosion-proof and anti-falling properties, and remains intact after breakage for better safety.

In terms of design, it supports customization of solar control and one-way perspective, with adjustable shading coefficient of 0.3-0.6, optional colors such as silver gray, light gold, brown, coordinating with various building frame colors; it supports customization of conventional and non-standard sizes (maximum customizable 2440mm×3660mm), suitable for curtain walls, special-shaped doors and windows and other structures, fixed with the frame through special pressure strips and glass glue, and expansion space is reserved at the edges to avoid glass breakage caused by temperature difference.

Clear Glass vs. Ultra-Clear Glass

In terms of design, it supports the combination of local decoration and overall application, and can be spliced with ordinary clear glass and ultra-clear glass to create a layered aesthetic; patterns and textures can be customized as required, Chinese style can choose carved and frosted landscape patterns, industrial style can choose wired and Changhong textures, light luxury style can choose colored glaze gradient patterns; when matching with frames, hidden pressure strips are used for fixing, balancing aesthetics and firmness, and expansion space is reserved at the edges to adapt to temperature changes and avoid glass breakage.

It supports customization of conventional and non-standard sizes (maximum customizable 2440mm×3660mm), suitable for basic building structures such as ordinary doors, windows, flat partitions and economic curtain walls, fixed with various frames through standard glass glue and pressure strips, and reasonable expansion space is reserved at the edges to avoid glass breakage caused by temperature difference. As a base glass, it can perfectly adapt to subsequent coating, colored glaze and other processes without affecting the appearance and performance after functional upgrading.

Instructions for Use and Precautions

Installation must be operated by professionals, using special pressure strips and neutral glass glue for fixing to ensure uniform stress on the glass. It is forbidden to knock the glass corners. It can directly replace traditional insulated glass, and no additional frame modification is required for old renovation.

For daily cleaning, gently wipe with a soft cloth and neutral detergent. It is forbidden to use steel wool or sharp objects to scratch the glass surface, and avoid contact of acidic or alkaline reagents with the warm-edge sealing tape to prevent corrosion and aging.

Regularly check the cavity sealing. If fogging, water ingress or condensation occurs, the entire window glass needs to be replaced in time. Such situations are mostly caused by sealing failure, and the installation accuracy needs to be checked simultaneously.

Avoid heavy objects hitting the glass, especially high-rise doors, windows and floor-to-ceiling windows, to prevent breakage and falling; if cracks appear, stop using and replace immediately to avoid further damage to the sealing structure.

Do not rinse with cold water immediately after high-temperature exposure, and remove snow and ice on the glass surface in winter to avoid glass cracking caused by excessive temperature difference or uneven stress.

It is forbidden to disassemble the cavity or cut the glass privately, so as not to damage the integrated warm-edge sealing structure and cause complete failure of the product's energy-saving and sealing performance.

Frequently Asked Questions (FAQ)

Q: What is the difference between the "warm-edge sealing" of 4SG insulated glass and traditional aluminum spacer sealing?

A: The core difference lies in thermal bridge and sealing accuracy. The warm-edge tape has no thermal conductivity, completely eliminating the edge thermal bridge (no condensation in winter); and the integrated molding has no manual gluing errors, with an annual air leakage rate of only 0.5%, and the sealing life far exceeds that of traditional aluminum spacers.

Q: Can 4SG insulated glass directly replace the traditional insulated glass at home?

A: Yes. It has the same size and weight as traditional insulated glass, no need to modify the door and window frames, and directly adapts to the original installation holes and pressure strips. No additional frame cost is required for energy-saving renovation of old residential communities.

Q: Will the filled argon gas leak? Does it affect the use effect?

A: The leakage rate is extremely low. The integrated sealing structure makes the annual argon leakage rate ≤0.5%, and more than 80% concentration can be maintained after 15 years of normal use, which will not significantly affect the thermal and sound insulation effect.

Q: Will the sealing tape of 4SG insulated glass age?

A: It will age slowly, but the service life is guaranteed. The tape is made of weather-resistant polymer material, UV and high/low temperature resistant, with a normal aging cycle of ≥20 years, far exceeding the service life of traditional sealants (10-15 years).

Q: Can it solve the problem of glass edge condensation when used in severe cold areas in northern China?

A: Yes. Warm-edge sealing completely blocks edge heat conduction without thermal bridge effect. Even if the indoor and outdoor temperature difference is large in winter, the glass edge will not condense or mildew, keeping the indoor dry and tidy.

Q: Is 4SG insulated glass suitable for use in severe cold areas in northern China?

A: Very suitable. Warm-edge sealing can completely solve the problem of glass edge condensation and mildew in northern winter. The triple-glass double-cavity version has a U-value as low as 1.4, which can greatly reduce indoor heat loss, lower heating energy consumption, and adapt to -40℃ low temperature environment.

Q: Will the greenish tint of clear glass affect the decoration effect?

A: No. The greenish tint of clear glass is slight and can only be noticed when large-area glass is spliced or at specific light angles. It does not affect the overall decoration effect in daily residential and commercial scenarios at all, and can be weakened through curtains, lighting and other collocations, with cost performance far exceeding ultra-clear glass.

Procurement and Customization Services

The company provides one-stop 4SG insulated glass customization and procurement services, supporting full-dimensional customization of core parameters: structure type (double-glass single-cavity/triple-glass double-cavity), glass thickness (5-8mm), coating type (single-silver/double-silver Low-e), light transmittance and color. Combined with the climate, energy-saving level and installation scenario of the project location, we provide exclusive optimization schemes.

We provide free on-site measurement, energy-saving effect simulation and technical disclosure services, and issue detailed parameter reports and design drawings before mass production. Bulk procurement enjoys substantial discounts. Logistics adopts standardized shock-proof wooden frame packaging, focusing on protecting glass corners and sealing structures, and delivers to the door nationwide; after-sales service provides a 2-year warranty. During the warranty period, products with sealing failure, cavity fogging, coating delamination and other problems caused by non-human damage can be replaced free of charge. Lifetime technical consultation and accessory supply services are provided to ensure the smooth implementation of various building projects.