Each party of about 0.7 kg， one meter wide， 10 mm thick， buy a few meters to beat a few pieces.
Bonnet (hood): Recommended covered with fire-retardant insulation， sound insulation and better compression format machine cotton 1
Roof insulation: 2 meters (3 meters ?and other similar criteria)
Four Clock: 4 meters (similar to standard and other vehicles 5 5 m)
Trunk (rear): 2 m (including the tail cover 3 meters)
Cockpit Low (floor): 3-4 meters (mini car two meters， three meters standard model， ?and commercial vehicles 4 m)
Fender (4): It is recommended to use 3 to 4 meters shockproof rubber
U groove + block firewall: 1 m
Products: Automotive aluminum foil insulation cotton mainly blocking sunlight and heat the outside of the engine design， can be used in the whole car， in front of car doors， vehicle armor plate， roof， install a layer of insulating hood cotton， that is blocking the heat outside and also has the effect of noise， a composite of various aluminum foil to enhance the effectiveness of the insulation， reducing heat absorption. Car foil insulation cotton looks beautiful beautiful， simple and convenient construction， general specifications 1M * 10M， can be customized according to customer requirements， the product also has a safety and environmental protection， tasteless， non-toxic， waterproof anti-corrosion， weather resistance， flexibility， free to bend with self-adhesive， tear kraft paper to paste
????Product comes with aluminum foil and have a strong buy gum without additional glue. Stocked without consultation， to ensure the quality and delivery speed. (Not flame-retardant， please do not use open flame test)
It is known that the car idling， accelerating or driving state under different road noise generated by the chassis and the vehicle body resonance or resonance amplification and noise after passing the car， so the occupants feel discomfort. Because sound is spread through vibration. So is the use of professional acoustic sound engineering products for car body vibration and sound-absorbing， in addition to be separated from the transmission of noise. Soundproofing works mainly through two ways to deal with:
(1) Use the damping muffler noise insulation materials to achieve the purpose. For example: In the rear doors， luggage chassis vibration deadening paste， etc.， it will play a reinforced body structure and control the resonance of the body and the external noise effects. This is because the paste insulation material damping. Changing the natural frequency of the body， controlling resonance and resonance with the body exterior noise generated， thereby effectively filters to remove vehicle a noise.
(2) use sound-absorbing material to achieve the muffler noise reduction purposes. For example: After the engine hatch engine noise using sound-absorbing material is significantly reduced. This is because the sound-absorbing material is an acoustic foam material， the horizontal distribution of it inside the mouth and opening and closing the mouth， can effectively noise that is sound energy into mechanical energy and heat energy consumed， so as to achieve the purpose of absorbing noise
The use of these two materials are not independent， with the use will achieve the best results.
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Product comes with aluminum foil and have a strong buy gum without additional glue. Stocked without consultation， to ensure the quality and delivery speed. (Not flame-retardant， please do not use open flame test)
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This product is with aluminum foil! Thickness is 10MM! Do not take this material and the other is not to compare our thickness.
The following data are for reference only， we can only be sold by the meter.
Four soundproof: 3.5-4 meters
Hood: 1- .1.5 meter
Roof insulation: 2-2.5 m
Four Clock: 4 m
Trunk: 2-3 meters
Cockpit Low: 3-4 meters
【product description】
Thickness: 10mm (1 cm)
Width: 1 m
Length: about a roll length 10 m， can be cut out from one meter to sell.
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[Sound] car engine can sound engineering noise， vibration， body resonance door， with the road， the sound of air resistance generated by friction， effectively eliminate and barrier while driving， giving you a quiet driving space， greatly improve traffic comfort.
[Strengthen Body] body cover， doors， the back cabin， roof， fender and pull the metal key parts of Central Africa are relatively weak， after the installation of soundproofing material， the body is more robust collision， the passive safety factor is improved.
[Sound] sound optimization， especially rear-mounted subwoofer， will lead to the trunk vibration， sound decreases， which is not done properly because of damping， the structure can not afford a car bass impact， issued a "squeak squeak "sound. After construction noise， eliminating the resonance body of metal， and also a good sound-absorbing effect， you can feel the sound more clear， vigorous， surging.
Construction principle []
1， when the vehicle body paste cotton insulation， insert the screw body exposed， particularly cotton insulation to be covered and then check the fastening screws. Some screws are not covered by cotton insulation， such as the door to pull the hand screws aim is to reduce future replacement of the trouble these wearing parts.
2， insulation board construction quality directly affects the overall construction of the vehicle noise reduction effect， the principle is to make sure pasted cotton insulation material and the body are tight paste， as the paste area requirements in a secondary position， of course， the pasted area large better， but compared with the quality of paste becomes not so important， after all， in some places it is very difficult construction， under normal conditions can not be 100% of the body paste.
3， before pasting noise insulation cotton sure the place you want to paste to scrub clean.
4. Removal during disassembly screws， clasps， be sure to use a transparent adhesive affixed near the disassembly position! Do not believe how strong his memory.
5. If only one door on the hearing wanted effect is impossible， construction requirements and complete.
6， all the bits and pieces in the process of cutting under construction not abandoned， you can paste in some hidden place
Why use cotton insulation?
1. To prevent the heat from the engine is transmitted to the hood， the hood to protect the paint，
2. The role is to absorb the engine noise transmitted outside the car while handling the stage side (ie firewall) sound-absorbing cotton to absorb engine noise transmitted to the car， your car should have a firewall above sound-absorbing cotton， which is the standard distribution， and only luxury cars have hood insulation cotton.
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Soundproofing Raiders:
???Cars Why soundproof? This should not have to say， no one likes a quiet environment， regardless of a few million to hundreds of million of vehicle structures are similar， there is no need for a separate presentation models， of course， the more worn， the more economical cars do it's better， because a large contrast， I believe that we should understand this truth. Of course， some riders but also for the demolition of his car feel distressed， in fact， this is not ly necessary， the President of the level of some of the foreign bulletproof car， are all disintegrated， plus steel assembled later. Maybe see this， you can feel a little satisfied. First， that the source of vehicle noise in the car does not start when he comes from the engine and the exhaust pipe and the outside noise， high-speed driving when the noise comes mainly from wind noise and tire noise. There are many riders asked me， after what I have done to achieve the effect of the car， which I really difficult to answer， for example， some of the models at around 150，000， but also did not do the basic sound， but his smaller noise ， and this is because of his engine and exhaust pipe out of the voice much smaller. His noisy place to be much smaller than your car， most intuitive， we can according to car exhaust fumes generated to distinguish what level it is a car. I wonder if you noticed， luxury car smoke， it seems that floating from the exhaust pipe coming out， and a little low， are emitted by. Understand the structure of the muffler people know that this is because the high-end car muffler internal structure of the tailgate to be much more circuitous airflow caused by dispersion. So say on the starting line， do not contrast with each other， but the role of sound in the affirmative. Without further ado， here's the point I made noise with their experience to write the majority of riders exchanges.
1. Cover
???Most models are the four front cover screws attached to the body， but also with hydraulic tappets， remove several screws and wiper cleaning nozzle connection pipe， you can remove the front cover， you need two people with removal， be careful not to damage the front windshield. After removing on cotton insulation to prevent paint scratches， perhaps some of the original car cover with a piece of cotton insulation， we generally demolition waste， because it is too small. Play a negligible role. Clean up the front cover do sound side， generally do not have oil， then wipe with a wet towel to clean and dry， the stopper shock plate cover according to the shape of the grooves， cut out around a big stick in the cover work-point groove portion ， only shock board extra stuffed strengthen within the gap between the cover panel ribs and machine compacted by hand， this is because less likely to fall off， and then cut a piece slightly larger than cover the entire double-sided cotton insulation Brush gluing machine front cover， hand packed from the middle to the edges. Expelled all the air bubbles， this one is very important， otherwise cotton insulation easily. With new wallpaper knife edge 1 cm from cover where to cut the edge， in order to cut neat appearance， the remaining 1 cm edge seal is used to paste. The wiper spray nozzle fittings aside to prepare for loading plug， so that the front cover on all done. He protects the paint， shielding effect of the engine sound， of course， it is on the outside to listen. There are many riders ask， is not it affect engine cooling， and now the car engine is water-cooled， depending on the water tank and the cooling fan to dissipate heat， and this has nothing to do. The whole car is generally 8-14 meters with cotton insulation， shock plate ended 5-10 meters. Cotton insulation effect alone a lot worse， and we've also done a lot of vehicles， the effect is not good， but also a lot of people doubt the reason for the noise.
2， U-shaped groove
???Demolition wipers screws teeter， you can win wiper arm， and then remove the U-groove cover plate screws helpful， but also useful for plastic buckle fixed， try not to dismantle the bad， bad split in to buy， anyway， not worth. Then remove the wiper motor and linkage arm mechanism， the general car is 4，5 screws connecting the wiper motor connector to unplug win， the same is to clean up the U-shaped groove， the stopper shock expose one side of the strip stencil under the stick in U-shaped groove， it can be small collages， integrally connected to the above painted on the adhesive layer of insulation cotton， cotton insulation smooth side of the glue. U-shaped grooves should be noted that one is not to put the car into the air inside and outside the loop block， air inlet is generally in the co-pilot side， then there are not two sides of the U-shaped groove Tangshui port is blocked， otherwise the U-shaped groove on a sub-basin a. Some models of the U-shaped groove does not open， do not do such as Alto car.
3， the door
???Usually there are 2-3 door fixing screws， a door handle in there， where a switch in the door handle， plastic sheet covering some cars， pick out-see screws， some cars are hand-glass， Shake the generally U-shaped with Kaka on the shaft from the door and shake the gap between the clamp to pry open a little to see， with the steel ruler inserted into the slot， the clip can be won poke the door crank After removal of screws， hand grasped the edge of the door linings， peeled door， so as not to damage the plastic snaps. If damaged， focused on a door you can buy spare snap. Disconnect the wires connected to win door liner， peel off the plastic sheeting raw door panel， and some models is a thin layer of foam board， do not throw away the first， according to the shape of his material. The first step inside the door， clean up after the stopper shock board cut 10 cm wide strips， put in his hand from the door of holes to go， stick to the inside of the door， posted 10 cm wide， 2-3 cm intervals paste ， palisade， and then double-sided gluing， the noise cotton stuck to the smooth side inside bumper stickers do not otherwise affect the glass lift. The door liner and then just remove the plastic sheeting according to shape， cut out cotton insulation material， glued to the lining of the door， attention need not brush too much glue， just a few points can be fixed， because in the future need to open When repair convenient， itself under pressure in the liner will not fall off， all through wire insulation cotton， cotton insulation simply cut at a small port to pass， you do not have to dig. This seal better. After the finish， do not affect the linkage of locks， so， the door should be counted three.
4， the roof
??First full dismantling， pedal door， the door seals， seats， flooring， ABC three columns pinch， sun visors， mirrors， door handles， dome light， you can win the ceiling， do not wrinkle， some ceiling stick to the roof， can be hand into it from all sides of the slit， the glue can be won separates the roof liner.
??The first step is the roof， after cleaning the roof， tin roof glue stopper shock plate， with a skylight also do so， but the first skylight institutions should win， then the smooth surface sticky cotton insulation in the roof liner on， do not do too step aside， otherwise easily refitted in place， the entire vehicle， too， put the seat portion of the screw holes leaving holes. Roof and underbody parts more gluing cotton insulation is not necessary， because the pressure in the liner itself does not move below， and then green plastic furthermore also scented， cotton insulation done so stop a little bit of shock board no waste， in addition to the exposed parts no need to pursue a complete stop cotton insulation shock plate， pieces can be put together， but must spell a whole， ABC and underbody all sides to fill the cavity with foam rubber， construction Note: First， high temperature construction time， then there may be previously with a sprayer spray some water， because Styrofoam is to absorb moisture in the air to swell and better this inflatable. After playing glue inside the hole， the hole is sealed with tape to prevent the adhesive everywhere， if available styrofoam glue cleaning agent， selling styrofoam places are sold， then there try to buy large expansion ratio of gum， usually with about 4，5 tank cars， the market price of ten dollars a can. Usually made of aluminum windows and doors where they buy， the doors and windows to fill the gap.
5， the baffle wall， the inner fender and underbody
???Because the biggest noise from the car exhaust pipe and tire noise， so this step is also critical， baffle wall on the outside do little good construction space in the cab do too much trouble， the need to dismantle dashboard， air conditioning evaporator box. If you want to remove the fender to do it， will cause the front cover， the door gap， headlight change， the majority of riders， after all， not a professional panel beaters， so that the firewall and fender， we use armored rubber processing， Because of their ease of construction， armored tape has nozzle can be sprayed into any space， made out of integrity， seal better. Plastic liner can be put on the front tires removed， to find a place to wash him five dollars to let him be cleaned with water cannons special baffle wall， the inner fender and the entire chassis. After the glue to dry， spray paint around the front part of the chassis should exhaust pipe waste newspapers and blocked， glued paper tape， then carefully sprayed over and over again， do not spray foaming flowing， cool for a while glue does not flow when the then spray a second time， and so forth spraying， spraying thickness determine the effect， we are generally two boxes of plastic spray bottle 24. Not feel more spraying， so that the baffle wall， fender， chassis made of a whole.
6， the exhaust pipe
???Quiet car， the biggest noise from the exhaust pipe， we use glass fiber cloth wrapped around the entire root exhaust pipe muffler and header banana part， also depends on the effect of the thickness of the wound， he played the role of noise insulation reduce the temperature of the engine compartment， the intake air temperature is also reduced， a significant impact on the engine intake air temperature， FireWire Iridium spark plugs effect to be significantly more than the conversion points. Glass fiber cloth 25 cm wide 25 meters long， around the market price 10 yuan， local native hardware market are sold.