25 Sheets 18? x 31? Car Sound Deadening Mat 2mm Thick one size abrasive Automotive Noise Insulation and Vibration Dampening Material for Van Proofing High-Quality Material? Made from top-quality Butyl material with a fireproof aluminium outer coating, this sound deadening damping mat is and practical to use. ?Eliminate Vibration? Effectively eliminates vibration, rattles, and drumming on body panels of cars, commercial vehicles, caravans, motorhomes, vans, and machinery. ?Flexible and Mouldable? With ultra-flexible characteristics, this sound deadening material can be easily formed and moulded to fit tight curves, ensuring a perfect fit. ?Suitable for Extreme Temperatures? Designed to withstand extreme hot and cold temperatures, making it suitable for use on both the underside and internal body panels, including under the bonnet. ?Waterproof and Rust Prevention? The waterproof property of this damping mat prevents rust from forming on surfaces exposed to the elements, ensuring long-lasting protection.