Product Overview
The Westglass Thermochromic Sunshade PVB Materials Laminated Film Series is engineered for smart architectural and automotive glass, using an 80% polyvinyl butyral (PVB) resin base combined with 20% photothermal nanomaterials. Triggered by temperature changes with a 25°C baseline, it enables stepless adjustment of color and light transmittance (smart switching between clear and blue/gray states), while delivering three core benefits: impact resistance, ≥30dB noise reduction, and 30% HVAC energy savings. Ideal for curtain walls, car sunroofs, and industrial monitoring, it comes with a 10-year warranty, offering a fully integrated solution for safe, energy-efficient, and intelligent glazing.
Why Choose Westglass?
1. Industry Leader, Globally Trusted
- 8 Years of Export Expertise: Serving 50+ countries across Europe, North America, the Middle East, and Southeast Asia.
- Rigorous Quality Control: 100% full inspection of all rolls (thickness tolerance ≤±0.02mm) to ensure uniformity and reliability.
- Full Customization:
- Thickness: 0.38mm–1.52mm
- Colors: Clear, Blue, Gray, Yellow
- Functional Layers: Soundproof + Thermal Insulation combinations
2. Smart Manufacturing, Rapid Response
- Flexible Production: Standard rolls (1.5m × 50m–300m) or pre-cut sheets delivered in 1–3 business days.
- Global Logistics: Non-custom orders ship in 1–3 days; custom orders ready in 15–30 days with end-to-end tracking.
Core Advantages
1. Intelligent Thermal Regulation
- 25°C Baseline Stepless Dimming:
- Warm Conditions (>25°C): Instantly darkens to ≤30% transmittance, reflecting 80% of infrared rays and lowering indoor/cabin temperature by 5–8°C.
- Cool Conditions (<25°C): Restores to ≥80% transmittance for unobstructed natural light—no energy or manual adjustment needed.
- Zero-Energy Operation: Self-powered by ambient temperature changes for sustainable, hassle-free performance.
2. Safety & Health Protection
- Explosion-Proof Impact Resistance:
- PVB substrate with tensile strength >20MPa keeps 99%+ of shattered glass fragments bonded, eliminating splash risks.
- 99% UV Blocking: Shields luxury furniture, automotive leather interiors, and artworks, reducing fading/aging risks by 90%.
3. Long-Lasting Durability
- Extreme Environment Resilience:
- Operates stably in -40°C–85°C, resisting brittleness in arctic cold and delamination in tropical heat—ideal for deserts, polar regions, and coastal areas.
- Decade-Long Lifespan: Matches vehicle design cycles (10 years) and lasts 10+ years in buildings—significantly longer than standard sunshade films, cutting replacement costs.
4. Optical Excellence
- Crystal-Clear Vision:
- Low haze in clear state ensures distortion-free views for safe driving at night and bright, natural lighting in buildings.
- Aesthetic Flexibility:
- Customizable in cool blue, warm yellow, and other tones to complement modern minimalist or industrial design aesthetics.
5. Premium Noise Reduction
- 30dB Noise Blocking: Dampens mid-low frequency sounds (traffic, machinery), creating quieter conference rooms, driver cockpits, and living spaces.
Application Scenarios & User Value
1. Architecture
- Smart Curtain Walls: Dynamic dimming + 40% energy savings for reduced building operational costs.
- Sunrooms/Greenhouses: Auto-adjusts light intensity to optimize plant growth while maintaining comfortable temperatures.
2. Automotive
- EV Sunroofs: Darkens in strong sunlight to reduce battery heat load, extending electric range.
- Commercial Vehicle Side Windows: 30% transmittance blue tint for privacy + full UV protection, ideal for luxury MPVs.
3. Industrial Monitoring
- Power Equipment Windows: Instant temperature anomaly alerts via color changes, preventing overheating accidents and lowering maintenance costs.
- Petrochemical Pipeline Covers: Corrosion-resistant coating + thermal indication for enhanced safety in high-risk environments.
Experience the Future of Smart Glazing
Contact Westglass Today for custom thermochromic PVB film solutions—engineered to deliver safety, efficiency, and innovation across all applications.
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