KOIKEY Car Sound Deadening Mat 15 pcs 16.3 sqft 197mil | Reduces Road Noise and Vibration

• Choose the Coverage That Fits Your Project:Includes 15pcs/16.3 sqft total coverage area (each 9.8" × 15.7", 197mil / 5mm thickness)—easy to plan coverage and start small upgrades. Need a different thickness or coverage area? Choose from 4mm / 5mm / 10mm thickness, with coverage options of 1 roll/19 sq ft, 2 roll/38 sq ft, 12pcs/13.1 sq ft, 15pcs/16.3 sq ft, or 34pcs/37.1 sqft—pick the right sound deadening mat for your build.
• Quieter Drive, Less Rattle & Vibration:Dense closed-cell foam supports sound deadening by reducing road noise, panel vibration, and interior rattles for a more comfortable ride. Noise levels can drop from ~52 dB to ~29 dB (about 50% lower). It also helps with sound dampening by absorbing both high- and low-frequency noise to keep your cabin quieter.
• Heat-Reflective Foil Helps Reduce Heat Soak:Foil facing helps reflect radiant heat from the engine/exhaust and summer sun, supporting car insulation and improving comfort. The aluminum layer can reflect up to 95% radiant heat (lab), helping reduce heat transfer when applied to areas like hood/firewall/roof.
• 4-Layer Build for Reliable, All-Weather Use:A foil + foam + PSA adhesive + release liner construction built for real car use. The waterproof foil surface wipes clean easily and resists everyday wear. Working temperature range: -40°F to 300°F. A dependable sound deadening material for cars built for both hot and cold conditions
• Peel & Stick Install — Easy to Cut & Apply:Strong PSA self-adhesive backing helps it stay put once pressed firmly in place. Easy to measure, trim, and fit around curves and corners with scissors or a utility knife. Apply this sound deadener to doors, floor, trunk, wheel wells, roof, hood, firewall, cargo area and more. The waterproof adhesive helps provide a lasting hold.

• Prepare the Surface — Clean and dry the target area thoroughly. Remove any dirt, grease, or existing adhesive. Ensure the surface is smooth and free of rust for optimal adhesion of the sound deadening mat.
• Measure and Cut — Measure the area where you want to apply the mat. Use scissors or a utility knife to easily cut the mat to the desired shape and size, allowing for curves and corners.
• Apply and Press — Peel off the release liner to expose the strong PSA adhesive. Carefully position the mat and press it firmly onto the surface. Use a roller or your hands to ensure complete adhesion and remove any air bubbles.
• Repeat for Full Coverage — Continue applying the mat to all desired areas, such as doors, floor, trunk, roof, and firewall, for maximum noise and heat reduction. Ensure all pieces are pressed down firmly for a lasting hold.

Typical situations where KOIKEY Car Sound Deadening Mat 15 pcs 16.3 sqft 197mil | Reduces Road Noise and Vibration helps — illustrative scenarios, not customer reviews.