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Product Features
Superior Protection:Our Photochromic Self-Tint PVB Interlayer Film blocks 99% UV and up to 80% IR, safeguarding your home, family, and interiors from fading and harm.
Optimal IGU Performance:Integrated into Insulated Glass Units (IGU), it dynamically adjusts light transmittance, achieving excellent U-value and low SHGC—greatly reducing cooling loads and boosting energy efficiency.
Dynamic Self-Tinting Performance:Our photochromic glass automatically darkens in response to increasing sunlight intensity and temperature, delivering soft, diffused natural light with no glare and uniform tinting throughout.
Automatic Light Adjustment:Seamlessly tints according to sunlight levels—no electricity required—providing gentle illumination and glare-free views all day long.
Effortless Application – No Wiring Required
Passive Smart Shading:Our self-tint IGU requires no power, no wiring, no controls—install once and enjoy automatic sunlight-responsive shading effortlessly.
Simple & Cost-Saving:Replace curtains or blinds with one seamless unit for better sun control, lower cost, and zero maintenance.
Professional Photochromic PVB R&D and Production
We specialize in the professional research, development, and manufacturing of high-performance photochromic PVB interlayers, delivering cutting-edge self-tinting solutions for smart glass applications in architecture, automotive, and beyond.
Automated Production Line
Online Quality Control
Advanced Product Testing Instruments
Photochromic PVB Film
We integrate our proprietary high-durability photochromic materials into PVB via a specialized process for excellent molecular stability. Offering fast response, superior endurance, and strong weather resistance under intense UV/heat, it outlasts traditional films. Ideal for architectural glass, sunroofs, and partitions—providing passive dimming, 99% UV blocking, and efficient heat control for energy savings, comfort, and aesthetics.
Specification
Photochromic IGU Glass Solar and optical Specifictaion
FAQ
Q1:
What Is Photochromic PVB Film?
A:
Photochromic PVB is a functional interlayer for laminated glass. It responds to ultraviolet (UV) light in sunlight: stronger UV exposure makes it darker, while reduced exposure allows it to become lighter.
Q2:
How Is Photochromic Glass Different from EP and EC Smart Glass?
A:
Photochromic glass responds to light conditions without electrical control. EP (SPD) glass changes tint when its electrical input is adjusted and returns to dark when power is removed. EC glass changes tint through an electrochromic reaction controlled by electricity. Choose according to whether the project needs an automatic light response or user-controlled tint, and compare each product’s switching behavior and glazing performance.
Q3:
How Does Photochromic Glass Work?
A:
Photochromic glass is made by laminating photochromic PVB between glass panes. The interlayer changes tint in response to UV exposure, allowing the finished glass to adapt to changing sunlight without an electrical control system
Q4:
Does Photochromic PVB Need Electricity?
A:
No. It responds to UV light automatically. It does not need wiring, a transformer, a switch or a controller.
Q5:
Can Photochromic PVB Be Applied to Existing Glass Like Window Film?
A:
No. Photochromic PVB is an interlayer intended for glass lamination, not a self-adhesive film for application to an existing window surface. To use it on an existing project, the relevant glass panel would need to be replaced with a suitable finished glass product.
Q6:
Can Photochromic PVB Be Made into an Insulated Glass Unit (IGU)?
A:
Yes. Photochromic PVB can first be made into laminated photochromic glass. That laminated panel can then be incorporated into an IGU according to the required window construction.
Q7:
Will Photochromic Glass Darken Equally in Every Location?
A:
No. Its response depends on how much effective UV light reaches the photochromic layer. Orientation, weather, surrounding shade and other glass layers can affect the result. The proposed glass build-up should be checked to ensure the photochromic PVB receives the UV exposure it needs.
Q8:
Can I Set Photochromic Glass to a Specific Tint Level?
A:
No. Its tint responds to available UV light rather than a manual setting. If the project needs users to select a tint level on demand, an electrically controlled product such as EP or EC glass may be more suitable.
Q9:
Does Photochromic Glass Provide Privacy?
A:
Darkening can reduce visibility through the glass, but photochromic glass should not automatically be treated as complete privacy glass. Its tint changes with UV exposure and may become lighter when sunlight is weak. If reliable obscured-view privacy is essential, evaluate a dedicated privacy glass solution.
Q10:
Is Photochromic PVB Suitable for Solar Control?
A:
It can provide adaptive shading by darkening under stronger UV exposure and becoming lighter as exposure decreases. For a project with specific heat-gain requirements, compare tested solar performance for the complete laminated glass or IGU, rather than judging performance by tint alone.
Related Applications
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