Hot Products
VacStar Technology
VacStar has developed VacStar series, its flagship vacuum glass solution, engineered to meet building façade structural requirement and diverse market needs. VacStar combines ultra-thin vacuum layer with high precision micro-supporting pillars and advanced edge-sealing technology. Key technologies include:
Metal Edge Seal
Unlike traditional vacuum glazing that relies on glass‑to‑glass sealing, VacStar employs a low‑temperature soft metal edge seal. This ensures:
- Low processing temperature (< 250 °C) – No re‑annealing of tempered glass panes is required, ensuring fully tempered vacuum glass for maximum safety.
- Superior durability – Dense structure with lower gas permeability, delivering a service life of more than 25 years.
- Resilient strength – High shear, tensile, and compressive resistance, enabling the structure to withstand even the most extreme climate conditions.
- Enhanced reliability – Prevents micro‑leaks that can compromise vacuum performance.
- Slim aesthetics – Allows for a narrow edge profile, ideal for retrofit projects where appearance matters.
One Step Process Eliminates Vacuum Seal on Glass Surface
VacStar adopts one step process where the edge seal is completed in vacuum chamber that avoids vacuum suction hole on glass surface. Benefits include:
- High Production efficiency – Skip time consuming vacuum suction process by completing edge seal and vacuum in one process.
- Higher Durability – Eliminating stress points that often lead to cracks or seal failure.
- Improved mechanical strength – Glass panes retain their natural resilience.
- Cleaner design – Seamless integration into frames without visible seal marks.
High Precision Micro-Supporting Pillars
VacStar leverages advanced ceramic pillar technology to deliver superior performance in vacuum glass applications.
- Precision & Stability – Ceramic supporting pillars are applied using advanced 3D printing technology and baked onto the glass during tempering, ensuring exact placement, a seamless bond, and a consistently stable vacuum gap.
- Efficiency & Reliability – The integrated process streamlines production, eliminates defects such as shifting or missing pillars, and enhances overall manufacturing efficiency compared to metal alternatives.
- Superior Insulation – Ceramic pillars provide better thermal and acoustic insulation than metal pillars, ensuring best energy efficiency and comfort in architectural applications.
Needle-Shape Getter Technology
VacStar incorporates a needle-shape getter, a specialized material that continuously absorbs residual gas molecules inside the vacuum cavity. This innovation delivers:
- Stable vacuum environment – Maintains extra-high vacuum for decades.
- Consistent thermal performance – Prevents degradation of insulation values over time.
- Maintenance-free operation – No need for re-sealing or re-vacuuming.
Excellent Performance
Outstanding Thermal Insulation
U-values as low as 0.4 W/(m²·K).
Slim Design
2 to 12.2mm thickness range, enabling easy integration.
Jumbo Size Capability
Max size 2400 x 4000 mm.
Acoustic Comfort
Significant noise reduction for urban environments.
Durability & Reliability
Rigorously tested for long-term performance under varying climates.
Applications of Vacuum Glass
VacStar is versatile across residential, commercial, and heritage projects. It is particularly valuable for:
🏗️ New Builds
High-performance façades and curtain walls.
🪟 Glazing Retrofits
Upgrading existing windows without altering façade structure or architectural aesthetics.
🏨 Luxury Retail & Hospitality
Enhancing comfort while preserving design transparency.
🌿 Green Buildings
Meeting stringent sustainability certifications. Certified Platinum Green Product by HK Green Building Council.
Frequently Asked Questions
Q
What makes VacStar vacuum glass different from traditional double-glazed glass?
VacStar vacuum glass uses an ultra-thin vacuum layer between two glass panes instead of the air or gas-filled gap found in traditional double-glazed units. This allows VacStar to achieve far superior thermal insulation (U-values as low as 0.4 W/(m²·K)) in a dramatically slimmer profile — as thin as 2mm — making it ideal for both new builds and retrofit projects.
Q
Is VacStar vacuum glass safe? Does the production process affect glass strength?
Yes. VacStar employs a low-temperature soft metal edge seal processed below 250°C, which means no re-annealing of tempered glass is required. The glass panes remain fully tempered throughout the manufacturing process, ensuring maximum structural safety and impact resistance.
Q
How long does VacStar vacuum glass last?
VacStar vacuum glass is engineered for a service life of more than 25 years. The dense metal edge seal structure provides lower gas permeability, while the integrated needle-shape getter continuously absorbs any residual gas molecules inside the vacuum cavity, maintaining consistent vacuum performance and thermal insulation over decades — with no need for re-sealing or re-vacuuming.
Q
Can VacStar vacuum glass be used in retrofit window upgrades?
Absolutely. VacStar's slim design (starting from just 2mm thick) and narrow edge profile make it an excellent solution for glazing retrofits. It can be installed into existing window frames without the need to alter the façade structure or architectural aesthetics, making it particularly suitable for heritage buildings, luxury retail spaces, and urban residential properties.
Q
What are the acoustic benefits of VacStar vacuum glass?
VacStar vacuum glass provides significant noise reduction, making it ideal for urban environments with high ambient noise levels. The vacuum layer effectively blocks sound transmission, and the ceramic micro-supporting pillars — which outperform metal alternatives — further enhance acoustic insulation performance, delivering a quieter and more comfortable interior environment.
Q
Is VacStar vacuum glass certified for green building standards?
Yes. VacStar vacuum glass has been certified as a Platinum Green Product by the Hong Kong Green Building Council. Its outstanding thermal insulation performance (U-values as low as 0.4 W/(m²·K)) significantly reduces building energy consumption, helping projects meet stringent sustainability certifications and green building requirements worldwide.