noico 80 mil 5 sqft car sound deadening mat, butyl automotive sound deadener, audio noise insulation and dampening noico solutions noico 80 mil as a whole is a high quality sound deadening insulation. noico 80 mil is full weighted automotive sound deadener! vibro-dampening layer is a composition of butyl and different improvers. these compounds have to be used in correct proportions so the maximum soundproofing efficiency is achieved. the optimal weight of 80 mil material is minimum 0.7 lbs/1 sqft. different weight of material may affect the physical properties that way decreasing the performance. noico 80 mil sound deadening mat features high level of adhesion! noico is easy to cut, install and it is overall a very user-friendly soundproofing material. <br> <br>noico does really work! this insulation pads eliminate vibrations, reduce overall noise and rattle level of your auto thus allowing for higher comfort. noico 80 mil does also improve a quality of your car stereo system. however, using noico 80 mil as standalone will not be 100% solution to sound proof your vehicle while still making a sensible difference. we recommend using noico 80 mil in combination with a layer of closed cell foam, which is a special heat and cool insulation material and additional noise barrier. please note! correct installation of material is 50 % of success in the process of car soundproofing. carefully roll down material to the degreased surface with the roller. special embossing on the foil is made for convenience of installation so you can see the areas that are properly rolled down and those one needing more pressure.