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
West Thermochromic PVB Film Series |
Structure | Irradiated | Temperature | VLT% | Solar Direct Transmittance% | Ultraviolet Screening% | Infrared Transmittance% | Color Uniformity▲E | Haze |
Optical Properties For V1 Film | nonirradiated | 20℃ | 73.9 | 53.7 | >99.5 | 27.2 | <1 | <2 |
40℃ | 70.3 | 48.2 | 26.7 |
60℃ | 64.5 | 43.1 | 26.2 |
80℃ | 59.2 | 38.8 | 25.8 |
UV irradiation for 200 hours | 80℃ | 51.3 | 25.7 | 8.7 |
Optical Properties For V2 Film | nonirradiated | 20℃ | 61.4 | 40.3 | 21.7 |
40℃ | 54.1 | 37.9 | 21 |
60℃ | 44 | 34.5 | 20.5 |
80℃ | 36.1 | 31.5 | 20.1 |
UV irradiation for 200 hours | 80℃ | 34.5 | 27.1 | 13.5 |
Product Packaging

Accepted Delivery Terms
FOB, CFR, CIF, EXW, FAS, CIP, FCA, CPT, DEQ, DDP, DDU, Express
Delivery, DAF, DES, and more.
About Westglass:
Westglass specializes in manufacturing and exporting automotive paint protection film (PPF), smart films, intelligent
glass, photochromic films, automotive window films, and related
products. Our solutions are exported to 50+ countries renowned for superior quality, competitive pricing, and
exceptional after-sales service.
Let us be your trusted partner in smart glazing and protective film
solutions!
Contact Us
Sales Manager : Cherry Chi
Email : westglass@sdwestglass.com
Mob / WhatsApp / WeChat : +86 15553820372