NoiseGuard
SILENT NOISE CANCELLING TECHNOLOGY FOR A QUIET AND MORE COMFORTABLE DRIVE
The new NoiseGuard technology from Davanti effectively lowers the noise inside the vehicle, by absorbing the vibrations generated in the tyre structure. A specially-designed polyurethane foam dampens noise resonance, resulting in a more comfortable environment for the vehicle’s driver and passengers.
Tyre cavity noise is created when the compressed air inside a tyre is vibrated by the tyre’s contact with the road, and is easily transmitted to the vehicle, adding to cabin noise. Davanti NoiseGuard absorbs vibrations in key frequency ranges, preventing resonance, and reducing perceived levels of noise.
Davanti NoiseGuard consists of a polyurethane foam applied to the inside of the tyre, which achieves the acoustic benefits, without compromising the quality and performance capabilities of the tyre.
DEVELOPMENT & TESTING
DEVELOPMENT & TESTING
NOISE LEVEL TESTING
Testing was carried out using binaural headset sounding detecting equipment worn on the driver’s head.
Extensive testing concluded that Davanti NoiseGuard archives a reduction of sound levels of 1dB average across both ears of the driver, when driving at 80km/h. A 1 dB change in a sound equates to about a 26% reduction in sound energy.
Absorbs vibrations in the frequency range that is responsible for cabin noise.
Improves levels of driver and passenger comfort.
Reduces the perceived noise levels - especially beneficial to drivers of electric vehicles.
COLD WEATHER FOAM RETENTION
Davanti NoiseGuard tyres were subjected to a programme of cold weather testing, to assure the ability of the adhesive to retain the foam after successive exposure to freezing conditions. It was proven that the adhesion of the foam to the tyres was not affected by cold conditions.
DavantiSeal
SELF-SEALING TECHNOLOGY THAT KEEPS DRIVERS MOVING WHEN THEY EXPERIENCE A PUNCTURE
DavantiSeal protects drivers from unforeseen roadside callouts by protecting the tyre from air pressure loss as a result of a puncture.
The self-sealing technology surrounds the object perforating the tyre and fills the hole to maintain pressure and prevent air loss.
When the object is removed - either ejected during driving, or by a professional tyre fitter - the seal is drawn down by the object into the hole, sealing the edges for complete protection.
Covers almost 85% of the possible accidental causes of air pressure loss, allowing drivers to continue their journey without the need to change tyres.
Unrestricted driving performance with no impact on rolling resistance.
Applicable to punctures up to 6mm diameter within the tread contact patch.
DEVELOPMENT & TESTING
PENETRATION SELF-SEAL TESTING
DavantiSeal tyres had been subjected to extensive testing of their self-sealing abilities. Testing has shown that injuries up to 6mm - including cases where the penetrating object is ejected from the tyre leaving a holeare sealed by the tyre’s lining without any loss of pressure.
COLD WEATHER TESTING
DavantiSeal tyres retain their ability to seal injuries to the tyre at low temperatures. Testing has shown that the self-sealing lining remains effective at winter temperatures.
