In the sound deadening showdown, it\'s no contest. Lab testing has shown that Eastwood\'s butyl sound deadener offers equivalent performance to other name-brand products while costing significantly less. While sound deadening material comes standard in modern cars, many restorers also add it to older vehicles so they can enjoy present-day comfort while retaining that classic look. You may also need it as part of body repair or an aftermarket upgrade. Whatever your reason for needing it, X-MAT offers a low-profile heat and sound reduction barrier to block out natural rattles, vibrations and  keep you warm or cool depending on the weather. See the Eastwood product videos and reviews to learn more!