Product Overview

The Westglass Thermochromic Sunshade PVB Film Series is a dry-process laminated glass interlayer composed of approximately 80% polyvinyl butyral (PVB) resin powder and 20% photothermal polymer nanomaterials, formed via high-temperature, high-pressure processing. Using 25°C as the baseline, the film’s base color adjusts reversibly between clear and colored states (e.g., blue, gray) in response to ambient temperature changes—no external power required. This intelligent switching dynamically controls light and heat transmission while retaining the same strong adhesion and safety features as traditional PVB interlayers.

Customizable across multiple color spectrums via proprietary formulations, it integrates seamlessly with all glass types to create smart safety glass for color-changing shading, thermal insulation, and energy efficiency.

Why Choose Westglass?

1. Industry Leader, Global Trust

• 8 Years of Global Export Expertise: Serving 50+ countries in Europe, North America, the Middle East, and Southeast Asia.
• Rigorous Quality Control:
  • 100% Roll Inspection: Thickness tolerance ≤±0.02mm, free of bubbles or impurities.
  • International Certification: Compliant with global safety glass standards (e.g., CCC, CE, ASTM).
• Tailored Solutions:
  • Thickness: 0.38mm–1.52mm; Colors: Clear, Milky White, Blue; Functional layers: Soundproof, Thermal Insulation.

2. Smart Manufacturing, Rapid Response

• Flexible Production: Standard rolls (1.5m width, 50m–300m length) or pre-cut sheets.
• Expedited Delivery: Non-custom orders ship within 24 hours; custom orders fulfilled in 15 business days.

Core Advantages

1. Intelligent Thermal Control & Energy Efficiency

• Dynamic Light Regulation:
  • High Temperature: Darkens to ≤30% transmittance, blocking 80%+ infrared rays, reducing indoor/cabin temperature by 3–8°C and AC energy use by 30%–50%.
  • Low Temperature: Restores to ≥80% transmittance for natural light and passive solar heating.
• Wide Temperature Adaptation: Responds to -20°C–80°C, ideal for year-round climate control.

2. Energy Savings, Safety & Health

• 99%+ UV Blocking (Customizable): Protects furniture, automotive interiors, and artworks from UV-induced fading and degradation.
• 85%+ Infrared Blocking (Customizable): Cuts solar heat gain, lowering cooling costs in summer.
• Anti-Glare Design: Reduces harsh reflections to enhance driving safety and living comfort, minimizing eye strain.

3. Extreme Durability & Multi-Functionality

• All-Weather Resistance: Withstands -40°C–85°C thermal cycles and UV aging tests, ensuring 10+ years of stable performance.
• Impact Resistance: Bonds shattered glass fragments, reducing splash risks—ideal for high-safety applications like curtain walls and car sunroofs.

4. Optical Clarity & Aesthetic Flexibility

• High-Transparency State: Clear, distortion-free vision (haze ≤1%) for premium architectural daylighting.
• Custom Color Options: Available in Cool Blue, Warm Yellow, and other tints to balance shading with design aesthetics.

5. Eco-Friendly & Low Cost

• Zero Formaldehyde: RoHS-compliant, lead-free materials for sustainable, safe installations.
• Zero-Energy Operation: Self-powered by temperature changes—no electricity needed, delivering long-term cost savings.

Application Scenarios

1. Architecture

• Curtain Walls & Skylights:
  • Replaces traditional blinds with smart glazing, achieving 40%+ annual energy savings by cooling in summer and heating in winter.
  • Combines explosion-proofing, soundproofing, and adaptive dimming for luxury buildings.
• Sunrooms & Greenhouses: Optimizes light intensity for plant growth while regulating interior temperatures.

2. Automotive

• Sunroofs & Side Windows:
  • Auto-adjusts shading in high heat to reduce cabin heat buildup, enhancing comfort and lowering AC load for better EV range or ICE fuel efficiency.
  • Premium tint options (e.g., gray for privacy, blue for style) without compromising performance.

Experience Smart, Sustainable Glazing

Contact Westglass Today for custom thermochromic PVB film solutions—engineered for energy efficiency, safety, and seamless integration into modern architecture and automotive design.

Technical Parameters