Rust Patrol Heavy Duty, is the advanced, industrial formula, providing up to two years of rust prevention. It actively lubricates, penetrates, and displaces moisture protecting electronics. If protection is what you’re after, Heavy Duty is the product you need. Use it on your equipment, the undercarriage of your vehicle, hydraulics, and parts in storage. Thousands of applications - especially in harsh environments. Rust Patrol Heavy Duty uses nanotechnology to outperform other products across the market, and whether at home or on the job, Rust Patrol Heavy Duty is the product to get the job done right the first time!