Mercury – Corrosion Guard Engine Protect | Rust Inhibitor Spray | 12 oz Can | 80287855

Overview

Keep your engine looking new and running clean with Mercury Marine 80287855 Corrosion Guard Engine Protect. This 12 oz spray-on rust inhibitor forms a thin, water-resistant film that shields your outboard or sterndrive from corrosion without leaving sticky residue or buildup. Designed for use on engine blocks, under-cowl components, and exposed metal surfaces, it dries quickly and won’t harm paint, rubber, or plastic. It’s lightweight, non-staining, and built to handle both fresh and saltwater — the perfect year-round defense against rust and oxidation.

Key Features

• Purpose: Protects engine and metal components from rust and corrosion.
• Formula: Dries to a clear, water-resistant coating that doesn’t gum up linkages.
• Performance: Works on both painted and bare metal surfaces.
• Versatility: Safe for use on marine engines, vehicles, tools, and equipment.
• Ease of Use: Convenient 12 oz aerosol can with attachable straw for targeted application.

Engine & Equipment Compatibility

• Designed for Mercury, Mariner, and MerCruiser engines
• Also suitable for use on cars, trucks, ATVs, bicycles, and metal tools

Performance & Real-World Benefits

The 80287855 Corrosion Guard is engineered to handle the toughest environments — from saltwater docks to humid storage sheds. It coats metal parts with a protective barrier that seals out moisture and oxygen, two of the main causes of corrosion. Unlike heavy protectants, it goes on light and clean, so it won’t attract dirt or clog moving parts.

Use it after washing your engine, before long-term storage, or any time you want to preserve your equipment. It’s quick, effective, and proven to keep engines and metal gear looking their best.

Why Choose Mercury OEM

The Mercury 80287855 Engine Protect is an official Mercury Marine product, designed to meet factory protection standards. Generic sprays may leave oily residues, discolor surfaces, or break down under heat and vibration.

Mercury’s OEM formula is clear, long-lasting, and specifically made for marine engines — offering reliable protection without the mess. It’s trusted by Mercury technicians and boaters who need corrosion protection that actually works.

FAQ

Q1: What surfaces can I use this on?
It’s safe for painted, non-painted, and under-cowl engine parts, as well as other metal surfaces.

Q2: Will it attract dirt or gum up linkages?
No — it dries to a light, non-sticky film that won’t collect grime.

Q3: Is it safe for saltwater use?
Yes — it’s formulated for both saltwater and freshwater environments.

Q4: Can I use it on other equipment?
Absolutely — great for vehicles, tools, bikes, and other exposed metal gear.

Q5: Why OEM over other sprays?
Mercury’s formula gives lasting, non-staining protection designed for marine-grade durability.