ResoNix Fiber Mat Silver is a high-performance sound absorber and thermal barrier designed specifically for under-hood and other high-heat-area applications. It uses the same acoustically superior fiber structure found in our Fiber Mat Black, but features a perforated aluminum facing that serves two important roles. It acts as a radiant heat barrier, and it provides physical protection from heat exposure and light debris.

       As sound passes through the perforated surface, the microscopic fibers inside the mat convert airborne acoustic energy into mechanical movement and heat. This makes it highly effective at absorbing mid and high frequency engine and mechanical noise, particularly in engine bays, generator housings, and other areas where traditional materials fail or degrade quickly.

       Unlike foam-based hood liners that dry out, shrink, or fall apart over time, ResoNix Fiber Mat Silver maintains its acoustic performance and structural integrity for the life of the vehicle. It's also backed with an automotive-grade, high-temperature peel-and-stick adhesive that allows for simple and secure installation, even on complex surfaces.

       This material is purpose-built for environments where both heat and airborne noise need to be controlled, without sacrificing long-term durability or ease of installation. It is ideal for treating the underside of hoods, firewall panels, engine covers, generator housings, and other heat-exposed areas where typical foam liners fail. Whether you’re building a street car, race vehicle, off-road rig, industrial equipment enclosure, or using it to insulate marine engine compartments, ResoNix Fiber Mat Silver offers the right combination of performance, resilience, and practicality.

• Hydrophobic and mold/mildew resistant. Water is of no concern for this product.
• Cut with heavy-duty scissors only. Razor blades or box cutters will not cut cleanly. Open edges are fine and won’t fall apart due to the way the fibers are constructed and woven together.
• Use INSIDE of doors on outer door skins at your own risk. We recommend using ResoNix Guardian or ResoNix Lockout instead for this.
• Our automotive sound absorbing mat absorbs sound best when left uncompressed. Having it compressed in certain tight areas is fine, especially for decoupling purposes, but do not try to stuff areas as tight as possible if your goal is acoustic absorption. It wastes product and decreases its overall acoustic absorption performance.
• Engineered fiber structure. Ultra-fine fibers are bonded to a base in a way that allows them to move freely for sound absorption, while staying intact and resisting shedding. Unlike melt-blown materials that fall apart easily, this construction maintains performance and durability.