Product Specification

Product Overview

The Westglass High-Strength PVB Materials Laminated Film Series for architectural laminated glass is engineered with 80% high-purity polyvinyl butyral (PVB) resin combined with photothermal-responsive polymer nanomaterials, designed exclusively for smart safety glazing systems. Using 25°C as the baseline, it achieves dynamic switching between high-transparency (light color) and shaded (blue/gray) states through thermally reversible molecular structural changes, while retaining the strong adhesion, explosion resistance, and noise reduction properties of traditional PVB interlayers.

Through a 120°C–140°C high-temperature/high-pressure lamination process, it forms a "glass-PVB-glass" smart composite structure, delivering four core functions: temperature-adaptive color change, all-weather safety protection, broadband noise blocking, and dynamic energy regulation. Ideal for high-end curtain walls, intelligent automotive glass, and industrial equipment monitoring, it supports deep customization of color schemes, thickness, and temperature response ranges.

Why Choose Westglass?

• 8 Years of Global Export Expertise: Trusted by clients in 50+ countries across Europe, North America, the Middle East, and Southeast Asia.
• Rigorous Quality Assurance:
  • 100% Full Roll Inspection: Ensures thickness tolerance ≤±0.02mm, bubble-free, and impurity-free products.
  • International Compliance: Meets global safety standards for laminated glass.
• End-to-End Customization:
  • Packaging: Custom boxes, logo printing, and width adjustment (500mm–3000mm).
  • Technical Parameters: Thickness (0.38mm–1.52mm), light transmittance, color palettes, and functional layer combinations (e.g., soundproof, thermal insulation).
• Exceptional Service:
  • Dedicated Support: Professional after-sales team for technical guidance and bespoke solutions.
  • Rapid Delivery: Non-custom sizes ship within 1–3 business days; custom orders completed in 15 business days.

Core Advantages

1.      Intelligent Thermochromic Adaptation

• Dynamic Optical Regulation:
  • Low Temperature (＜25°C): Maintains high transparency (light transmittance ≥80%) for maximum natural light.
  • High Temperature (＞28°C): Gradually darkens (transmittance 30%–50%), blocking 60%+ solar radiant heat (780–2500nm). Smooth, uniform color transition without patches or delays, enabling "cool-light in winter, sun-shading in summer" smart switching.
• Visual Temperature Warning: Color intensity reflects ambient temperature (e.g., light blue at 25°C, deep blue at 30°C), providing instant anomaly alerts for industrial equipment monitoring.

2.      All-Weather Energy Efficiency

• Building Energy Optimization:
  • Summer: Darkened film reflects 90%+ near-infrared rays, reducing indoor temperature rise by 40% and AC load by 35%.
  • Winter: Lightened film allows more solar gain, increasing indoor temperature by 2–3°C and cutting heating costs by 20%.
  • Annual Energy Savings: 25%–30% verified by third-party testing.
• Automotive Efficiency Boost:
  • Reduces seat overheating and AC strain in sunroofs/side windows, extending EV range by 5%–8% and improving ICE fuel efficiency by 3%–5%.

3.      Premium Optical & Safety Performance

• Consistent Visual Clarity:
  • Haze ≤1.0% throughout color changes, ensuring distortion-free views and HUD compatibility for safe driving.
• Dual Safety Protection:
  • Strong Adhesion: Bond strength ≥5N/mm² keeps shattered glass fragments attached, preventing injuries.
  • Extreme Weather Resistance: 1.14mm thick film withstands Typhoon Class 9 and hail (≤25mm diameter).

4.      Long-Lasting Durability

• Unmatched Weather Resistance:
  • Passes 5,000 thermal cycles (-20°C–60°C) with <5% performance degradation.
  • 1,000-hour UV aging test (UVA 340nm, 80°C) shows no yellowing (ΔE≤2) or delamination, with a lifespan of 10+ years.

5.      Flexible Thickness Options

• 0.38mm Ultra-Thin: For lightweight automotive side windows.
• 0.76mm Standard: Balances energy efficiency and noise reduction (≥25dB) for building windows.
• 1.14mm Reinforced: Meets high-safety needs for airport skylights and industrial observation windows.

Application Scenarios

1.      Smart Building & Energy-Efficient Curtain Walls

• High-Rise Offices/Commercial Complexes: 0.76mm silver-gray film auto-regulates light/heat, optimizing HVAC efficiency for dynamic energy savings.
• Villa Windows/Skylights: 0.38mm sky-blue film balances daylighting and UV protection for furniture/art preservation.

2.      Intelligent Automotive Glass

• EV Panoramic Sunroofs: 1.14mm reinforced film reduces battery heat load in summer and enhances visibility in winter, aligning with EV lightweight and efficiency goals.
• Luxury Vehicle Side Windows: Custom gradient gray film—high-transparency lower zone for driver vision, temperature-responsive upper zone for privacy.

3.      Industrial Monitoring & Protection

• Power Equipment Observation Windows: 0.5mm clear film visually signals overheating in transformers/switches, preventing safety hazards.
• Chemical Pipeline Sight Glasses: Corrosion-resistant formulation monitors medium temperature in harsh environments, ensuring industrial safety.

Packaging & Storage

• Professional Packaging:

  • Vacuum-sealed aluminum foil + moisture-proof film with humidity indicator, standard rolls (100m/roll, 1500mm/2134mm width), custom width up to 3000mm, shipped in shock-resistant wooden crates.

• Storage Guidelines:

  • Store at 18°C–25°C, 20%–50% humidity, away from direct sunlight. Use within 24 hours after opening; reseal unused film to prevent nanomaterial degradation.

Elevate Your Glazing with Smart Thermal Control

Contact Westglass Today for custom thermochromic PVB film solutions—engineered for safety, efficiency, and innovation in architecture, automotive, and industrial applications.

Technical Parameters