PEREDAM LANTAI MOBIL - SGM BARRIER PRIMER MADE IN RUSSIA SGM Barrier Prime is the most dense of all existing insulating membranes used for soundproofing cars. With a thickness of 3 mm, it provides sound insulation of up to 34 dB, when used as a 3rd layer over a sound absorber/sound insulator on the floor and arches of the car interior. An additional adhesive layer promotes better adhesion of the membrane to the layer of sound insulating/sound absorbing material and a hermetic connection of the membrane into a single layer, preventing moisture from getting into the sound absorber layer. -Resistant to water, moisture and extreme temperatures -Provides sound insulation up to 34 dB -Easy installation on all types of car surfaces DIMENSIONS : Width x Length x Height (mm) 500 x 800 x 3