HIGH-PERFORMANCE NOISE REDUCTION: 100% butyl rubber with aluminum backing absorbs vibrations and reduces road noise by 5-8 dB, delivering a quieter and more refined driving experience. EASY INSTALLATION WITH ROLLER: Self-adhesive sheets and included steel/wood roller ensure smooth application on car doors or trunk lids, with long-lasting adhesion even in high-vibration areas. DURABLE 72MIL THICKNESS: Built with 72mil-thick butyl rubber and aluminum layer for superior noise control and reliability, outperforming asphalt-based alternatives. IDEAL 4-DOOR KIT: Covers 12 sq. ft. (four 12"x36" sheets), designed for use as a complete 4-door kit or for trunk lid installation, providing targeted sound dampening where it matters most. HEAT & WEATHER RESISTANT: Withstands extreme temperatures from -100 degree F to 300 degree F, features a paintable surface, and is waterproof and flexible for durable, long-term performance. The Rockville Rockmat RM12-B 12 Sq Ft Sound Dampening/Deadening Kit is engineered to reduce unwanted noise, vibrations, and rattles, creating a quieter ride and improving car audio performance. Constructed from 100% butyl rubber with a heat-resistant aluminum layer, this high-grade material eliminates distortion and enhances bass clarity while avoiding asphalt fillers found in lower-quality products.

Each kit includes four sheets (12"x36") for a total of 12 sq. ft.-the perfect size for a 4-door installation or trunk lid coverage. The sheets feature a strong pressure-sensitive adhesive and come with a steel and wood roller to simplify application, ensuring secure and smooth installation.

At 72mil thickness, Rockmat delivers superior noise absorption, reducing sound levels by 5-8 dB. Its waterproof, flexible, and paintable design makes it highly versatile, while the adhesive withstands temperatures from -100 degree F to 300 degree F for reliable long-term use.

Whether you're upgrading your car's audio system or simply want a quieter cabin, the Rockmat RM12-B offers professional-grade performance with easy DIY installation.