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 2400×4000mm.
- 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 – HK Green Building Council
🏅 Certified Platinum Green Product – HK Green Building Council
Frequently Asked Questions
What makes VacStar's metal edge seal different from traditional vacuum glazing?
VacStar uses a low‑temperature soft metal edge seal processed below 250 °C, unlike traditional glass‑to‑glass sealing methods. This ensures tempered glass panes require no re‑annealing, maintaining maximum safety while delivering a service life exceeding 25 years and superior resistance against micro‑leaks.
How thin can VacStar vacuum glass be, and what sizes are available?
VacStar vacuum glass ranges from just 2mm to 12.2mm in thickness, making it one of the slimmest high-performance glazing solutions available. It also supports jumbo sizes up to 2400×4000mm, suitable for large-scale architectural and façade applications.
What is the thermal insulation performance of VacStar vacuum glass?
VacStar achieves outstanding thermal insulation with U-values as low as 0.4 W/(m²·K). This makes it highly effective for energy-efficient buildings, significantly reducing heat transfer compared to standard double or triple glazing.
Why does VacStar use ceramic micro-supporting pillars instead of metal ones?
VacStar's ceramic pillars are applied via advanced 3D printing technology and baked directly onto the glass during tempering, ensuring precise placement and a stable vacuum gap. Compared to metal alternatives, ceramic pillars offer superior thermal and acoustic insulation, improved production efficiency, and eliminate common defects such as shifting or missing pillars.
Is VacStar suitable for retrofitting existing windows?
Yes. VacStar's slim profile and one-step vacuum sealing process make it an ideal choice for glazing retrofits. It can upgrade existing windows to high-performance standards without altering the façade structure or affecting the architectural appearance of a building.
Does VacStar vacuum glass hold any green building certifications?
Yes. VacStar has been certified as a Platinum Green Product by the Hong Kong Green Building Council, recognizing its outstanding contribution to energy efficiency and sustainable construction. It is well-suited for projects targeting stringent green building certifications globally.