Clearly Better Sound Quality

Bluetooth technology, voice-activated commands, onboard navigation systems, and sophisticated audio equipment make driving more enjoyable, yet they dial up the interior noise.   A new advanced Saflex® Q Series acoustic interlayer addresses this problem with precise acoustic control.   

Saflex Q Series is an advanced tri-layer polyvinyl butyral (PVB) interlayer that reduces noise level by 4.7 dB versus a standard windscreen and 5.9 dB compared to tempered side windows within the medium frequency range (1,000 – 5,000 Hz).

The Clarity is Real

Saflex Q Series advanced acoustic interlayers are especially effective within the frequency of human key voice recognition ranges (2,000 – 6,000 Hz), reducing sound transmission by 4.8 dB over this range. In other words, consumers can hear a difference, and that can speak volumes about brand experience and perceived quality.

Lightening the Load

In response to regulatory and consumer demand for greater fuel efficiency, automotive makers rely on every opportunity to reduce overall vehicle weight. Saflex Q Series helps reduce the negative trade-offs of typical weight reduction efforts by enabling improved acoustics, even in thinner glass configurations.

Saflex Q Series enables improved acoustics in when paired with thin glass.

This solves the weight issue… For a typical windscreen, the reduction of glass thickness from 2.1/2.1 mm to 2.1/1.6 mm would result in a weight savings of 1.7 kg (3.7 lbs) or 11%.  In a standard windshield, this would result in an acoustic performance loss of 0.6 dB over the full frequency range (200 – 10,000 Hz).  However, when Saflex Q interlayers are used in the thinner configuration, the weight reduction can be achieved while still improving acoustic dampening over the standard windshield by 1.2 dB over the same frequency range.  

The addition of acoustic front side glass (2.1/2.1 mm) can enable a further reduction of 1.1 kg (2.4 lbs) while improving sound transmission loss through the side windows by 3.3 dB versus 5 mm tempered glass.  Across all glazing positions, Saflex technology allows automakers to use thinner glass without sacrificing cabin comfort.

Lightweighting also helps auto manufacturers meet global environment regulations for lower CO2 emissions, including the Kyoto Protocol, the Economic Commission for Europe (ECE), and U.S. Corporate Average Fuel Economy (CAFE) standards.
 

Avoids Retooling Costs

Typical weight reduction solutions can require expensive retooling. Automotive glazing made with Saflex Q Series can be substituted into a vehicle’s existing glass with no need for expensive redesign, retooling, or research and development.

Applications:

Windscreen, Side Window, Sunroof, Back Glass, Quarter Glass

Product Benefits:

• Improves acoustic comfort: Reduces exterior noise by up to 4.7 dB versus standard laminated glass
• Reduces weight: Enables the use of thinner glass configurations with minimal compromise to cabin acoustics
• Provides UV protection: Blocks more than 96 percent of harmful UV radiation

Your Car, Your Sanctuary

Acoustics play an important role in the vehicle cabin experience — less noise helps lower the stress of driving, reduce fatigue, and enable easier conversations between drivers and passengers.

The use of hands-free devices such as Bluetooth, navigation systems, voice-activated commands, and on-demand audio are all essential components of the driving experience and features that consumers expect in modern vehicles.

With Saflex® E Series, a new enhanced acoustic interlayer for automotive laminated glass, improved cabin comfort and connectivity are more attainable than ever. The new Saflex E Series acoustic PVB interlayer is specially formulated to dampen sound by 2dB in the high frequencies (critical wind noise region is 5,000 to 10,000 Hz), more effectively than traditional acoustic interlayers.

TranquilGlass™ Technology

Eastman has leveraged its patented resin and plasticizer technology platforms to formulate a unique viscoelastic core layer called TranquilGlass. TranquilGlass allows the glass-interlayer system to effectively dissipate noise vibrations while maintaining the safety benefits expected from laminated glass. As a result, overall acoustic performance is improved, especially in the critical wind noise region.

With a more balanced cabin noise profile and exceptional sound damping properties in the high-frequency range, Saflex E Series featuring TranquilGlass is a key element of any premium cabin acoustic package. Consumers will notice the difference of a much quieter vehicle cabin with Saflex E series enhanced noise reduction technology.
 

These interlayers are also available in solar heat (IR) blocking, gradient band, colors, and head-up display (HUD) compatible formulations.

Applications:

Windscreen, Front Side Window
 

Product Benefits:

• Improves acoustic comfort: Reduces noise levels by 4.5 dB (1,000 to 5,000 Hz) vs. standard laminated glass and by 2 dB in the critical wind noise region (5,000 to 10,000 Hz) vs. traditional acoustic glazing
• Reduces weight: Enables the use of thinner glass configurations with minimal compromise to cabin acoustics
• Provides UV protection: Blocks more than 96 percent of harmful UV radiation