For the best results, use two or three layers of different soundproofing materials. Each type of material has its own properties that help to reduce different kinds of sounds.
Layer 1: Sound Deadening Mats
Apply this material directly onto the metal panels of your vehicle to eliminate vibrations and road noise.
Layer 3, Option 1: Acoustic Felt
Helps to absorb the remaining unwanted sounds within the vehicle, and provides additional thermal insulation. Can only be used in dry places.
Layer 2: Sound/Thermal Insulation Mats
Made from closed-cell foam, an ST-mat provides both sound and thermal insulation. It is also fire retardant and moisture proof.
Layer 3, Option 2: Acoustic Foam
Helps to absorb the remaining unwanted sounds within the vehicle. Can only be used in dry places.
It is important to remember that all of these layers may not be practical for all users and installation projects. See our soundproofing and insulation examples, to help you plan the best solution for your needs.