Hi-Tech Undercoating

Hi-Tech Industries Undercoating: Rubberized Protection Built for the Long Haul

When it comes to defending a vehicle's underbody from the relentless assault of road salt, moisture, gravel, and corrosion, Hi-Tech Industries has engineered an answer that professionals and dedicated DIYers have come to trust. As a family-owned, Detroit-based manufacturer with deep roots in the automotive care industry, Hi-Tech brings a no-compromise approach to undercoating — one born from the same environment where rust is a very real, very costly problem.

The Hi-Tech Premium Rubberized Undercoat

Hi-Tech's flagship undercoating product is the Premium Rubberized Undercoat (available in the HT-18021 and HT-18023 variants). Engineered to defy chipping, cracking, and peeling with age, this asphaltic, rubberized undercoat is elastic and waterproof — a durable defense for cars, trucks, trailers, and more. The formula delivers on multiple fronts simultaneously, making it a go-to choice for comprehensive underbody care.

The HI-TECH Rubberized Undercoat Aerosol delivers long-lasting protection against rust, corrosion, salt, and road debris — designed for automotive underbodies, wheel wells, and fenders, the heavy-duty spray creates a flexible, rubberized coating that seals out moisture and resists chipping, cracking, and peeling.

Key Features That Set Hi-Tech Undercoating Apart

• Rust & Corrosion Resistance: Hi-Tech Rubberized Undercoat creates a tough barrier that protects a vehicle's underbody from rust, corrosion, salt, and harsh road conditions.
• Sound Deadening: In addition to protecting metal surfaces, this undercoat helps dampen road noise and absorb vibrations.
• Paintable Finish: Paintable once cured, this VOC-compliant aerosol is safe for use in body shops and perfect for automotive professionals or DIYers.
• Elastic & Waterproof Barrier: The elastic barrier flexes with temperature changes without cracking, and bonds firmly to metal surfaces without flaking.
• Repair Versatility: Excellent on new panel and fender replacements, section repairs, weld joints, and rust holes — it can even be used to seal asphalt and concrete driveway cracks, and seal eaves and flashing.
• Convenient Aerosol Application: Aerosol spray cans allow for precise, even coverage in hard-to-reach areas, and the quick-drying formula makes it simple for DIY users or professionals to apply without special equipment.

VOC-Compliant Options for Every Region

The Hi-Tech HT-18023 is California/OTC VOC Compliant , making it a responsible choice for shops and enthusiasts operating in emissions-regulated states. The formula is also free of harmful chemicals like toluene and xylene, making it a safe and responsible choice for vehicle protection. Whether you're running a professional body shop or tackling a weekend restoration, there is a Hi-Tech undercoating formulation designed to meet your local requirements without sacrificing performance.

Who Should Use Hi-Tech Undercoating?

Hi-Tech is a leading USA-based manufacturer of car care supplies and equipment , and their undercoating lineup reflects that broad expertise. Ideal for undercarriages, fender wells, and rocker panels, it reduces unwanted road noise and is great for use on cars, trucks, RVs, and more. Whether you are protecting a daily driver from winter road salt or finishing up a body panel repair on a classic truck, Hi-Tech's rubberized undercoating delivers professional-grade results in an easy-to-use aerosol can.