Ceralite™ UV Window Film
High-Transparency Heat & UV Control Film
Reduce Solar Heat Gain. Save Cooling Energy. Preserve Glass Clarity.
The Hidden Energy Problem with Glass Buildings
Modern buildings increasingly rely on glass façades to achieve openness, daylight, and architectural elegance.
But glass is also one of the largest sources of unwanted heat gain.
Through untreated glass, buildings experience:
- Intense solar heat penetration
- Rapid indoor temperature rise
- Higher air-conditioning runtime and peak demand
- Discomfort near windows and glazed areas
- UV damage to interiors, furnishings, and merchandise
In many buildings, HVAC systems are consuming energy simply to remove heat that enters directly through the glass.

What Building Owners and Designers Want
As building owners, architects, and operators, you want
- Lower cooling energy consumption without changing HVAC systems
- Heat reduction at the building envelope
- High visual clarity without dark tint or mirror effects
- Protection against UV fading
- Solutions suitable for luxury, retail, hospitality, and design-sensitive spaces
They want energy efficiency without compromising aesthetics.

Ceralite™ — A Smarter Glass-Envelope Solution

Ceralite™ is a premium, high-transparency heat and UV control window film engineered to reduce solar heat gain while preserving near-original glass appearance.
Unlike conventional dark or reflective films, Ceralite™:
- Rejects heat without blocking daylight
- Maintains low reflectivity and natural colour
- Preserves architectural and brand intent
It functions as a passive energy-saving upgrade, acting exactly where heat enters—the glass façade itself .
Benefits & Performance
Ceralite™ delivers:
- Significant reduction in solar heat gain
- Lower HVAC energy consumption
- Improved occupant comfort near windows
- Near-original glass clarity and low reflectivity
- ≈99% UV protection
- Protection of interiors, merchandise, and finishes
- Fast ROI driven by energy savings
- Ceralite™ is compatible with major brands such as 3M Prestige 50, V-Kool VK-55, and Solar Gard TrueVue 30, in visible light, UV rejection and Heat/TSER.
How Ceralite™ Works
Ceralite™ improves glass performance through spectral selectivity, not shading.
1. Solar Heat Rejection
Ceralite™ selectively blocks infrared wavelengths responsible for heat, while allowing visible light to pass through.
This significantly reduces heat entering the space without darkening the glass.
2. UV Protection
Ceralite™ rejects approximately 99% of ultraviolet radiation, helping to:
- Protect occupants
- Prevent fading of interiors, furnishings, and displays
- Extend the life of interior assets
3. Optical Clarity & Low Reflectivity
Ceralite™ maintains:
- High visible light transmission (≈50–55%)
- Low external reflectivity
- Accurate colour rendering
Spaces remain bright, open, and visually comfortable—unlike traditional tinted or mirrored films.
Proof That Energy Reduction Is Achieved
Documented installations demonstrate:
- Indoor temperature reduction of ~3–7 °C
- HVAC energy reduction of ~10–25%
- Significant reduction in peak cooling demand
Lower heat gain through glass leads directly to:
- Shorter compressor runtime
- Reduced HVAC stress
- Extended system lifespan .
Proof That Heat Reduction Is Achieved
Measured in installations across Japan:
• Indoor temperature reduced by: 3–7°C
• HVAC energy consumption reduced: 10–25%
• UV light blocked: ≈99%
• Visible light transmission preserved: High clarity / no tint
• ROI (simple payback): 12–30 months, depending on building envelope size & HVAC load
This directly lowers monthly energy bills and extends the lifespan of HVAC compressors, reducing maintenance & replacement capex.
Customers, the Proven Track Records
Ceralite™ is trusted in high-profile, design-sensitive installations, including:
- DIOR Ginza Six flagship store (Japan)
- Mercedes-Benz dealerships across Japan (200+ sites)
- Toyota and Suzuki dealership networks
- Luxury hotels, resorts, and cultural buildings
Why Glass-Level Heat Control Saves Energy
When less heat enters through windows:
- Indoor temperatures stabilise faster
- Air-conditioning cycles less frequently
- Cooling capacity requirements drop
- Energy consumption decreases continuously
Ceralite™ delivers recurring operational savings, not just a one-time improvement.
How Penta Gard Is Applied
Ceralite™ is installed as a retrofit window film:
- Applied directly to existing glass
- No building shutdown required
- No structural modification
- Clean, fast installation with minimal disruption
The solution is also reversible, making it suitable for leased or heritage properties.
Where Ceralite™ Is Applied
Ceralite™ is ideal for buildings with extensive glass exposure:
Commercial & Institutional Buildings
- Office towers
- Government and public buildings
- Hospitals and universities
Retail, Automotive & Premium Spaces
- Luxury retail boutiques
- Automotive showrooms
- Shopping malls and flagship stores
Hospitality & Leisure
- Hotels and resorts
- Restaurants and cafés with glass fronts
- Convention and event centres
Cultural & Design-Sensitive Buildings
- Museums and galleries
- Heritage and landmark buildings
- Architecturally significant façades
Private Residential

Frequently Asked Questions
A high-transparency heat and UV control window film that reduces cooling energy demand without compromising glass clarity
No. Ceralite™ preserves brightness and maintains low reflectivity.
Yes. It is specifically designed for design- and brand-sensitive environments.
Designed for long service life under normal building conditions.
Yes. By reducing cooling energy demand, it supports carbon-reduction and ESG goals.
Ceralite™ is installed as a retrofit window film:
- Applied directly to existing glass
- No building shutdown required
- No structural modification
- Clean, fast installation with minimal disruption
The solution is also reversible, making it suitable for leased or heritage properties.
Stop Heat at the Glass, Reduce Stress on the Air-Conditioner
Instead of spending energy removing unwanted solar heat, prevent it from entering the building in the first place.
Contact Radiant Climate Technologies to learn how Ceralite™ High-Transparency Heat & UV Control Film can reduce cooling energy use, protect interiors, and preserve the beauty of your glass façade.
Clear glass. Cooler buildings. Smarter energy use.
