Stinger RKX36B Roadkill Expert Bulk Kit 9 Sheets 36 Square Feet Ultra-Dense Butyl and Aluminium Sound Deadener The RKX36B from Stinger is a Roadkill Expert bulk kit containing nine sheets with a total coverage of 36 square feet. Built from a proprietary ultra-dense butyl blend with an aluminium top layer, it mass-loads vehicle panels to reduce vibration, improve speaker bass response, lower road noise, and provide thermal insulation. The material is odourless, non-toxic, and self-adhesive. Product overview Roadkill Expert is Stinger's core vibration damping material, designed for application directly to metal panels throughout the vehicle. The proprietary ultra-dense butyl blend absorbs acoustic energy at the panel surface, while the aluminium top layer assists with heat dissipation and provides a finished surface that is compatible with further acoustic treatment if required. The RKX36B bulk pack of nine sheets makes it the practical choice for full vehicle treatments or installer use across multiple applications. Applied to door panels, the material mass-loads the thin metal to reduce the vibration that degrades speaker performance at higher volumes. Applied to floors and transmission humps, it reduces the low-frequency road noise that contributes to driver fatigue. Applied to firewalls, it reduces the heat transfer from engine bay and exhaust temperatures into the cabin. All three benefits are delivered by the same material across different panel locations in the vehicle. Installation requires no specialist tools. Clean the surface with wax and grease remover or methylated spirits, cut each sheet to the required shape, peel the self-adhesive backing, press into place, and roll flat with a Roadkill roller. The RKINSTALL roller and knife kit is recommended for best results. Features and benefits Ultra-dense butyl blend with aluminium top layer: The proprietary butyl blend absorbs acoustic energy at the panel surface to reduce vibration and road noise, while the 6 mil aluminium top layer assists with heat dissipation and provides a finished damped surface suited for further acoustic treatment. Improved speaker bass response and output: Mass-loading door and speaker cavity panels reduces thin metal vibration that degrades speaker performance at higher volumes, resulting in a more solid mounting surface for better bass response and improved overall speaker output across both factory and aftermarket speakers. Road noise reduction: Applied to vehicle floor areas and transmission humps, the RKX36B reduces the low-frequency road noise that enters the cabin and contributes to driver fatigue and elevated cabin noise levels. Thermal insulation: Rated from -62°C to 149°C, the material reduces heat and cold transfer through vehicle panels, keeping the cabin cooler in summer and warmer in winter. Particularly effective on firewalls where engine bay and exhaust heat enters the cabin. Odourless and non-toxic: Contains no harmful or odorous compounds, making it safe for use in enclosed vehicle cabins without the unpleasant smell found in cheaper sound damping products. Self-adhesive installation: The self-adhesive backing allows the material to be pressed directly onto the cleaned panel surface without requiring separate adhesive. Each sheet can be cut to shape with a knife before application. Nine-sheet bulk pack: Nine sheets each measuring 18 inches by 32 inches provide a total coverage of 36 square feet, suited to full vehicle treatments or installer use across multiple applications from a single kit purchase. What's in the box 9x Roadkill Expert sheets (18" x 32" each, 36 sq ft total) Technical specs Specification Detail SKU RKX36B Brand Stinger Coverage 36 sq ft total (9x sheets, 18" x 32" each) Minimum Thickness 0.080 in (approximately 2mm) Aluminium Layer Thickness 6 mil Damping Weight 0.65 lbs/ft² Peel Adhesion Strength 40.89 lb/in after 24 hours Application Temperature -62°C to 149°C (-80°F to 300°F) Adhesive Self-adhesive backing Odour Odourless Toxicity Non-toxic Frequently asked questions What is the difference between Roadkill Expert and Roadkill Ultimate?Roadkill Expert is a single-layer aluminium and butyl vibration damping material. Roadkill Ultimate adds a second acoustic foam layer on top of the Expert layer in a single sheet, combining the function of Roadkill Expert and Roadkill Overkill in one product. The RKX36B bulk kit is the better choice for large-scale panel damping treatments where coverage area and value are the priority. What surfaces can the RKX36B be applied to?The RKX36B is designed for cold rolled steel, galvanized steel, e-coated, and clear coated metal panels. It is suited for door panels, floor areas, firewalls, roofs, boot floors, and any other vehicle panel where vibration, road noise, or thermal transfer is a concern. How much of the vehicle can 36 square feet cover?36 square feet is sufficient for a substantial portion of a vehicle interior, including both front doors and floor areas in most passenger vehicles. For a complete full vehicle treatment, additional kits may be required depending on the vehicle size and the coverage percentage targeted. Contact us for guidance on how much material is needed for your specific vehicle and application goals. Do I need any special tools to install the RKX36B?No specialist tools are required. A wax and grease remover or methylated spirits for surface preparation, a knife for cutting to shape, and a roller for pressing the material flat are all that is needed. The Stinger RKINSTALL roller and knife kit is recommended for best installation results. Is the RKX36B safe to use inside a vehicle cabin?Yes. The RKX36B is odourless and non-toxic, making it safe for use in enclosed vehicle cabins. Unlike some cheaper sound damping materials, it does not emit unpleasant or harmful odours after installation.
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