Rubberized Under Coating

POR-15 Rubberized Under Coating is a professional-grade aerosol protection system designed to seal, coat, and preserve metal surfaces vulnerable to rust, corrosion, and moisture intrusion. This 17 oz aerosol formula is engineered for automotive undercarriages, exposed metal frames, structural components, and industrial equipment where long-term corrosion protection is critical. Rubberized under coating creates a flexible, durable barrier that adheres to steel, iron, and galvanized surfaces, making it the preferred choice for restoration shops, fleet maintenance, and DIY enthusiasts who demand reliability.

The rubberized formulation flexes with metal expansion and contraction, preventing crack-inducing brittleness that plagues rigid undercoatings. Unlike wax-based products that degrade under heat and moisture, POR-15's elastomeric polymer matrix cures to form a tough, paintable shell resistant to salt spray, road salt, and chemical exposure. The black finish provides both aesthetic consistency and UV stability, while the flexible rubber layer absorbs vibration and road noise. Application is straightforward via aerosol—no mixing, no special equipment required—and the paintable surface accepts topcoats for custom finish matching or additional UV protection.

Professional restorers and fleet managers rely on rubberized under coating to extend vehicle lifespan in salt-belt regions and marine environments where rust prevention is non-negotiable. The product works on new fabrication, bare steel repairs, and existing surfaces after light surface prep—ideal for frame reinforcement, seam sealing, and structural touch-up where traditional paint alone is insufficient. The aerosol format reaches confined undercarriage cavities, wheel wells, and crevices that brush or spray equipment cannot access, ensuring comprehensive coverage where corrosion initiates.