Sound deadening material is made from top quality odourless Butyl material with a fireproof aluminium outer coating, and will eliminate vibration, rattles and drumming on body panels including car and commercial vehicles. caravans, motorhomes, vans and machinery. Also suitable for speaker cabinets and many other applications. With its ultra-flexible characteristics sound deadening can be easily formed and moulded to the tightest of curves. It is also suitable for use in extremes of hot and cold temperatures, making it suitable for use on both the underside and internal body panels including under the bonnet. Our product is 100% waterproof will also prevent rust from forming on surfaces that are usually exposed to the elements. Specification:Colour: silver Sheet Size: 250mm x 180mmThickness: 5mmTotal Area: 4.8 Sq foot / 0.45 sq mtrWeight per Sq Mtr: 400gTechnical advantages: Self adhesive 5mm butyl based rubber visco elastic polymer active layer Aluminium constraining layer for maximum noise reduction improves performance Highly efficient vibration damper Superior performance to comparable products Contains 30% more active material than the Dynamic sounding brand leader Highly efficient performance requires less product More economical in use compared to competitorsProduct features: Soft and easy to use No nasty smell unlike inferior bitumen products High grade adhesive stays stuck even in extreme temperatures Non flammable Professional butyl based compound Unbeatable cost to performance ratioPackage Includes:10 sheets Damping Mat