Men and women striving to innovate the functionality and design of PVB interlayer for glass.
Developing the future of glazing

What is PVB interlayer for Laminated Glass?

S-LEC™PVB interlayer film for laminated glass provides a variety of functions and values.

Laminated glass is a type of safety glass that is made by laminating an interlayer film between two panes of glass at high temperature and pressure using an autoclave. PVB interlayer is mainly used for laminated glass because it has the unique advantage of adhesion to the glass, penetration and impact resistance.

Our PVB interlayer for laminated glass, S-LEC™ film, is widely adopted all over the world and can bring benefits such as:

  • High transparency – For clarity of the glazing.
  • Safety – Shatterproof, absorbs impact and prevents accidents.
  • Security – Resist impact from a hammer or glass cutters.
  • UV Blocking – blocks out 99% of ultraviolet rays.
  • Design –Gradient or Colour with different film thicknesses.
  • Solar Control – Heat reduction in cars or buildings.
  • Sound Acoustic – Quietness by blocking noise from the outside.
  • Head-up display – Adaptability with HUD for clear image.

S-LEC™ Film Developmental History

With over 60 years of experience with PVB Interlayer manufacturing and development. The first S-LEC™ film, introduced in 1958 to prevent the shattering of glass on impact, marked the beginning of our leading role of PVB interlayer technology for laminated glass. In response to the needs for various functions and design features for automotive and architectural glass, we have expanded our PVB interlayer solutions to reduce discomfort, via for example noise and heat reduction. In addition, we have options to combine our functions with gradients and shaded light and dark colors to have both aesthetically pleasing and functional glass. In one film, we can combine technologies such as wedge-shaped interlayer for head-up displays to display clear images with additional sound and heat insulation effects.

At SEKISUI S-LEC we are committed to creating new valuable solutions through PVB interlayer films for laminated glass to contribute to the developments in the ever-growing automotive and architectural industry.

Advanced Glass Solutions

Glass with S-LEC™ film that brings advanced solutions

Trends in contemporary architecture have led to the pursuit of more elaborate and larger glass surfaces to make spaces brighter and more attractive visually. These trends have led to a need for more functional glass addressing safety, security, and comfort. With the increasing of glass areas, people are exposed more frequently to infrared rays and to an increasing temperature, and with the diversification of living patterns and increasing interest in privacy protection, there is a great deal of attention being paid to sound insulation in buildings.

S-LEC™ Solar Control Film is developed to reduce infrared rays to achieve additional savings on electricity by reducing the use of air conditioning. S-LEC™ Sound Acoustic Film contributes to improving sound insulation to create comfortable spaces.

Glass innovations

S-LEC™ Film that brings advanced solutions for EV glass

S -LEC™ film offers a range of solutions as a PVB interlayer for automotive laminated glass.

In addition to safety and security features, our film also blocks more than 99% of UV rays that pour into the vehicle interior, protecting the skin and valuable items from sun damage. With a wide range of gradient or colour films, we can make designable glazing.

As part of our vision, we mostly develop solutions that can contribute to a more sustainable, innovative society. For example, S-LEC™ Solar Control Film was developed not to impair the connectivity of devices and sensors in the car and to save energy on the use of air conditioning to extend the driving range of electric vehicles.

SEKISUI S-LEC is taking up the challenge of new innovations to solve social issues by incorporating a variety of solutions into a PVB interlayer.

Open Innovation

People who provide value with open innovation that actively incorporate technology in different industries

There are many changes in today’s society that impact the developments and trends for the future of the architectural and automotive industry. Our colleagues around the globe use our market and trend research and technical know-how to develop advanced glazing solutions for the future.

 To integrate the latest innovations in S-LEC™ PVB interlayer film for laminated glass we work together with our partners worldwide. Through open innovation, we are committed to proactively incorporating technologies from different industries to enhance the possibilities of PVB solutions for laminated glass.

Global Research

Research centers of SEKISUI S-LEC in the world

For future S-LEC™ film developments, we have established four global research centers in our main operated regions (Japan, China, Europe, and the United States). Each individual research center approaches different developments based on trends and needs in their respective region enabling the development of technologies for the right regional market and target applications and strengthening the planning and development of new PVB interlayers with our partners.

At SEKISUI S-LEC our global team is committed to our vision to Make The NEW. Please contact us if you’d like to collaborate with our global research teams.

Challenging the Future

Innovation for the Earth to create peace of mind leading to the future

SEKISUI CHEMICAL Group has set its vision statement as “Innovation for the Earth” for 2030 which embodies the strong desire to support life infrastructure and create “peace of mind that continues into the future”.

We aim to solve social issues through our business and products to improve the earth’s and society’s sustainability throughout the product life cycle from development to delivery and by expanding PVB interlayer solutions that contribute positively to the global environment.

We will continue to support glass manufacturers, car manufacturers, and other companies worldwide to provide and develop innovative S-LEC™ film solutions for glass.

Our Services for your innovation

Glass development support from project design and proposes optimal solutions

We offer you our flexible services in customization. Include our consultancy team in the design phase of your project. This way, we can offer you our assistance in developing a tailor-made solution that suits your requirements.

With our global operation, there is always an opportunity to collaborate with you. Also, we like to invest in product innovation. We invite you to contact us if you have specific needs for your project. Let us know how we can meet the demands of future developments.

If you would like to know more about any of the S-LEC™ PVB interlayer films for laminated glass, please download our extensive brochures or feel free to contact us.


SEKISUI S-LEC offers a wide variety of solutions for automotive and architectural market.

  • Design
  • Solar Control
  • Sound Acoustic
  • Premium UV Blocking
S-LEC™ Design film applied on a blue car that talks about the design of the PVB interlayer for glass.
Laminated Glass Design Design

S-LEC™ films are currently available in a wide range of standard colours and custom colour options with multiple Tvis (Visible Light Transmittance) to optimize various glass combinations according to a vehicle’s concept.

In addition, our line-up also consists of wide gradient colour that transitions from 2% to >70% Tvis(Visible Light Transmittance). By adapting to a windshield or rear window, it creates a feeling of openness and beauty through smooth gradation, providing an advanced design for automotive glass.

A woman near the glass that transmits the visible light and blocks near-infrared rays and UV lights
Solar Control Performance for laminated glass Solar

Laminated glass with S-LEC™ Solar Control Film blocks infrared and UV (ultraviolet) rays but allows visible light rays for optical clarity without blocking the electromagnetic transmissions necessary for mobile phone and sensor communication. Solar absorbing glass realized by S-LEC™ Solar Control Film protects people because the cabin space stays cooler, so your skin does not burn.

Experience a comfortable, efficient, connected, and safe environment.

A child sleeps deeply in a car, thanks to sound insulation glass reducing outside noise and enhancing comfort.
Sound Acoustic for laminated glass Sound

S-LEC™ Sound Acoustic Film can be used to block outside noise from the outside world such as traffic, wind, and other disturbing sounds to tune out distractions for people to create a peaceful, quiet experience. 

You can combine acoustic quality with other functions or designs, such as solar protection or privacy colours, by incorporating soundproof film and other technologies into the laminated glass.

A woman who thinks a solution that protects people from ultraviolet rays by PVB interlayer
Protecting people and things by UV blocking Premium UV Blocking

There is an increasing demand for glass that can protect against UV due to the many health and beauty concerns of exposure to sunlight. These concerns can span from young adults worrying about premature ageing from sun exposure to parents wishing to protect young children with vulnerable skin facing a higher risk of sunburn.

Laminated glass with S-LEC™ Premium UV Blocking Film protects the skin for those who need UV protection to reduce health risks.