Heavy-Duty Rust & Corrosion Protection: Forms a waterproof, rubberized seal that shields metal from moisture, salt, and grime. Ideal for vehicle underbodies, wheel wells, and welds—defends against rust, corrosion, and costly structural damage year-round
Reduces Noise & Vibration for Smoother Rides: Not just for protection, this undercoat also absorbs road noise and vibration. Enjoy a quieter cabin by reducing squeaks, rattles, and harsh road feedback on every drive with this sound-deadening barrier
Paintable, Durable Black Finish for Seamless Look: Dries to a firm black texture that's fully paintable—perfect for touch-ups or full color customization. Easily blends with your vehicle's finish or any surface needing a sleek, protective coating
Fast-Drying, High-Adhesion Formula Won't Chip: Quick-drying and engineered for superior surface grip, this formula won't crack, peel, or flake. Great for fast, efficient application in detail shops, garages, or DIY projects—no mess, no waiting
Versatile Use – Automotive & Beyond: Protect undercarriages, install panels, or seal driveway cracks. Also supports outdoor tasks like treating tree wounds. One product, countless uses—for cars, homes, shops, and property maintenance pros
Description
The HI-TECH 18021 Rubberized Undercoat Aerosol (12-Pack) delivers professional-grade protection with a durable, paintable black finish. This 17oz quick-drying spray forms a rubberized barrier that defends against rust, road salt, and debris—ideal for undercarriages, wheel wells, and weld joints. It also reduces road noise and vibrations for a smoother, quieter ride. Easy to apply, this high-adhesion coating won't crack or peel and is VOC compliant for eco-conscious use. Beyond automotive care, it's perfect for sealing driveways or caring for trees. Whether you're a detailer, DIYer, or contractor, trust HI-TECH for long-lasting, all-surface protection.