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About SilentCoat

Door and door trim insulating

Most of materials used for doors improve acoustics of speakers. Even a small amount of materials installed in the door can improve the performance of speakers. Many through going noises from the front wheel arcs also enter the cabin through the doors. Road noises can be significantly reduced by a careful car door damping. Cover the metal panels with SilentCoat or SilentCoat Extra. Close the holes in the doors to improve Bass response of the speakers and reduce the distortion in mid-low frequencies.

It is important to cover the inside of trim panels with SilentCoat Sound Absorber to reduce the going through noises as much as possible.

Vehicle roof insulating

The roof should be damped!
Many of car manufactures do not pay attention to the sound deadening on the roof as they do not count the roof as a source of noises. However road noises travel through the car's metal parts as resonances and the huge empty roof surface starts to “sing” together with the wheels. This creates a feeling as if the road noise is coming in and it is impossible to find source of it during the ride. Even if at the beginning there isn't a feeling that the noise level is too high, still such a noise is very annoying. A human ear loses the concentration of any other sound like music, another person's talk, the music or conversation become louder and louder to overcome the road noise, and at the end of the ride the person feels tired in the head.

Quick steps to reduce the roof resonance:

1. Divide the roofing surface in 2-4 blocks using the stripes of SilentCoat Extra, it doesn't allow to resonate the roofing surface as one, but it blocks the noise in the divided areas.








2. Cover the remaining big surfaces with SilentCoat. The application of SilentCoat doesn't increase the weight. Use SilentCoat Extra for more serious installs.








3. Use SilentCoat Sound Absorber to kill the going through noises under the roof cover.










4. SilentCoat Sound Absorber works also as the resonance and reflection killing material improving the overall acoustics of the cabin as the original roof trim is thin and doesn't stop the mid and low-mid frequencies at all.







Interior panel insulating

To reduce the road noise level we recommend to cover the wheel arc covers and also all the plastic interior trim parts with as thick as possible SilentCoat Sound Absorber sheets. Plastic parts often are so thin that they cannot be counted as serious noise absorbents SilentCoat Sound Absorbers also are great to prevent plastics to rattle against the car body or one another.



Wheel arches, trunk and floor

Rear wheel archs and trunk area are the most noisy part in vehicles. Many cars are front wheel driven so construction of the front of vehicle is much stronger as rear.

Manufacturers pay more attention to kill noises in front and forget about rear of the car. Many cars are hatchbacks or station wagons these days where noises in the trunk travel straight in cabin. In front on the floor there is also a thick carpet that stops the noise much better as thin trunk skin.

Cover all possible big metal surfaces with Silent Coat to prevent metal rattling and save the weight.

Use Silent Coat Extra for the wheel arcs as the wheel arcs are the areas where a lot of going through noises appear.

Use SilentCoat Noise Isolator directly on wheel arcs if possible.

Close the tunnels from rear mudguard to the roof with Silent Coat Noise Isolator or Silent Coat Sound Absorber cushions.

 





Damped in such manner car becomes much more acousticaly comfortable (quiter) especially driving at a speed over 80 km/h. Reduction of self noises can reach up to 9db on noisy decks. Overall the result on typical road tests shows a reduction of noises 5-7db. Musical performance also improves a lot. Many parts do not resonate and damped trim parts and a roof reduces reflections. Increase your driving and listening pleasure!