As we mentioned in the previous article, while the large-scale application of glass brings a transparent aesthetic, it also makes the problem of light pollution increasingly prominent. However, in modern spatial design, large areas of glass have long become an indispensable structural element, leaving behind an unavoidable question: How can we balance flexible privacy needs and light-heat control while ensuring an open field of vision? In the past, whether for architectural curtain walls, automotive sunroofs, or various transparent partitions, achieving dynamic light control often meant high overall replacement costs, cumbersome construction processes, and unavoidable structural modifications-making many who wanted to renovate hesitant.
In contrast, the Difei EPC Smart Film (Self-Adhesive Version) can completely free you from lengthy construction schedules. Without the need to dismantle or replace existing glass, it can be applied directly, effortlessly achieving stepless dimming and allowing you to control light transmission and privacy entirely at your will.
Guiding Light with Order
This exceptional optical performance stems from Difei's exclusive EPC dimming technology: the film layer consists of electro-polarized crystals and high-polymer polymers. When powered off, the crystals are randomly distributed, scattering light to present an opaque dark state that blocks outside views; when powered on, the crystals quickly align neatly under the electric field, restoring the material to a high-transparency state with crystal-clear vision as before.
By adjusting the settings, it can also achieve a continuous change in light transmittance between "fully transparent" and "fully opaque," allowing light to truly flow according to your needs.
Built for Efficient Renovation
Tailored to the real-world demand across industries for lightweight and efficient renovations, the Difei EPC Self-Adhesive Film prioritizes "convenience" and "practicality" from the very beginning:
No substrate replacement, lightweight installation: Applied directly to existing glass without disrupting the original structure, with virtually zero construction noise.
Ultra-low energy consumption, defying extreme heat and cold: Daily energy consumption is only ≤1W/m², approaching "zero energy consumption"; the operating temperature range spans from -30℃-90℃, ensuring stable performance from freezing cold to scorching heat.
Crisp light switching: Transitions from bright to dark in 2 seconds and from dark to bright in 9 seconds, without any delay.
In the key dimensions of privacy protection, visual clarity, and thermal insulation, the EPC self-adhesive film demonstrates powerful performance advantages:
| Performance Index |
Self-Adhesive Model A |
Self-Adhesive Model B |
|
|
Visible Light Transmittance |
0.3% - 12% |
0.7% - 35% |
|
|
Haze |
＜5% |
＜5% |
|
|
Infrared Rejection Rate |
85% |
95% |
|
|
Withstand Voltage |
1000V |
1000V |
|
|
Response Time |
OFF→ON ≤2秒 |
OFF→ON ≤2秒 ON→OFF ≤9秒 |
|
|
Operating Temperature |
-30℃ ∼ 90℃ |
-30℃ ∼ 90℃ |
|
|
Energy Consumption |
≤1W/m² |
≤1W/m² |
|
|
Switching Lifespan |
> 1,000,000次 |
> 1,000,000次 |
Broad application scenarios
The "peel-and-stick, ready-to-use" feature of Difei EPC self-adhesive film solves the problem of scene adaptation. However, what determines its core value is the photo-thermal regulation function that goes beyond ordinary partition films, bringing users greater control over their space.
New Energy Vehicles and Automotive/Transit Aftermarket: Panoramic roofs, skylights, double-decker buses, and high-speed rail glass instantly transform into intelligent sunshades upon application. With over 99% UV and infrared rejection rates, it effectively reduces cabin temperature and air conditioning energy consumption, significantly improving passenger comfort.
Retrofitting Existing Buildings and Commercial Spaces: For existing spaces such as office curtain walls, hotels, and hospitals, there is no need for major construction. Applied to interior windows, partitions, or observation windows, it allows for seamless switching between "open interaction" and "private space."
Smart Home Upgrades: Balcony glass, interior partitions, bathroom spaces, and even high-end wardrobe doors and display cabinet glass can all be quickly upgraded into smart fixtures via DIY application.
Temporary and Portable Business Spaces: Ideal for time-sensitive settings such as temporary meeting room partitions, outdoor mobile office pods, commercial exhibition pop-up stores, and more. It is easy to apply and remove, offering flexible adaptation to the pace of rapid construction.
"Stick" the future of light and shadow into reality. Difei EPC self-adhesive smart film lets your space breathe freely between transparency and privacy.
