Blaster Surface Shield Lanolin Undercoating Spray — Pack of 6, Up to 2-Year Rust & Corrosion Protection for Vehicles

Blaster B’Laster Surface Shield is a lanolin-based undercoating spray that displaces moisture and leaves a durable, flexible film to help protect metal surfaces from rust for up to two years.

This spray is formulated to cling to exposed metal, seams, and undercarriages, forming a moisture-repellent barrier that resists washing and road salt. The thicker lanolin-rich formula is designed not to run or sag, making it suitable for vertical surfaces and irregular parts. It’s widely used by mechanics, fleet managers, marine owners, and DIYers who need a reliable anti-corrosion layer that can be reapplied as needed.

How does this spray prevent rust on cars and equipment?

The product combines a moisture-displacing action with a persistent lanolin film that blocks oxygen and water from contacting metal. That dual action slows oxidation and reduces the chance of new rust forming on treated areas.

• Displaces trapped water and residual moisture from seams and joints.
• Leaves a tacky, flexible lanolin coating that seals surfaces.
• Resists road salt, rain, and high-pressure washing longer than thin oils.

Where should I use it around my vehicle or workshop?

It’s ideal for undercarriages, wheel wells, body seams, chassis components, hinges, and exposed bolts. The thick formula adheres to vertical surfaces and recessed areas where thin sprays would run off.

• Automotive: frame rails, floor pans, seams, and suspension parts.
• Marine: trailer parts, boat trailers, and non-submerged hardware.
• Equipment: agricultural implements, outdoor machinery, and stored tools.

How long does the protection last and how often should I reapply?

Under typical conditions, the manufacturer rates the coating for up to two years of corrosion protection, though durability depends on exposure and mechanical wear. Inspect treated areas annually and after heavy abrasion or frequent high-pressure washing; reapply to worn or compromised spots.

• Rated for up to 2 years under normal exposure conditions.
• Check high-wear zones after winter or heavy use and touch up as needed.
• Shake well before each use to ensure consistent coverage.

How do I apply it for the best coverage and performance?

Clean loose rust, dirt, and grease first for maximum adhesion. Shake the can vigorously if stored in cold temperatures, apply in thin overlapping passes, and allow adequate drying time before returning equipment to service.

• Remove loose corrosion and heavy debris; light rust can be left for the coating to encapsulate.
• Shake well to mix the lanolin formula; apply at recommended temperature ranges.
• Use sweeping passes for even film; recoat if coverage is thin or after washing.

Who is this for: Blaster B’Laster Surface Shield is aimed at vehicle owners, fleet operators, marine enthusiasts, and maintenance professionals who need a tough, lanolin-based rust inhibitor that stays in place on vertical and recessed surfaces. It suits anyone wanting a longer-lasting corrosion barrier than thin penetrating oils, especially where moisture displacement and resistance to road salt and pressure washing are important. Purchase the six-can pack for multi-vehicle use, seasonal maintenance, or workshop stock to keep parts protected throughout the year.