Blaster Surface Shield Black Series undercoating, 1 Gallon Pail — rust protection, lanolin-enhanced finish

Blaster Surface Shield Black Series is a professional-grade, lanolin-enhanced undercoating that shields metal surfaces from corrosion for up to two years while leaving a smooth, black finish.

Engineered for automotive underbodies, equipment and exposed metal parts, this one-gallon pail delivers a durable, moisture-repellent barrier that resists high-pressure washing and stays tack-free without cracking or flaking. The formula is designed to flow evenly, cling to seams and moving parts, and provide a discreet black coating that camouflages existing rust and blemishes for a clean, professional appearance.

How does Blaster Surface Shield stop rust and last outdoors?

The product uses a lanolin-based, moisture-wicking chemistry that repels water and helps prevent corrosion from forming on treated metal. Its thicker but pourable consistency creates a continuous film that resists peeling and maintains protection even after exposure to road contaminants and spray washing.

• Provides up to two years of corrosion resistance under typical conditions
• Lanolin-enhanced base repels moisture and inhibits oxidation
• Formulated to resist high-pressure cleaners and road salt
• Leaves a cohesive, non-flaking black finish for concealment

What surfaces and vehicles can I use it on?

Surface Shield Black is safe for all metal components and is ideal for automotive underbodies, trailers, farm equipment, and industrial machinery. It adheres to welded seams, brackets, chassis rails and other exposed areas where corrosion typically begins.

• Automotive: cars, trucks, crossovers, EV underbodies
• Heavy equipment: loaders, mowers, agricultural gear
• Trailers and structural steel subject to weather exposure
• Moving parts and brackets when applied with appropriate clearance

How do I apply the one-gallon pail for best results?

Apply to a clean, dry surface free of loose rust, oil and dirt; light wire brushing or degreasing improves adhesion. The product can be poured for brush/roller application or used with a compatible spray system; follow coverage rates and allow adequate cure time before exposure to moisture.

• Surface prep: remove loose scale, grease, and contaminants
• Application methods: pour/brush/roller or spray with suitable equipment
• Curing: allow surface to set per label instructions before wet exposure
• Scent: mild cedar aroma for a more pleasant application experience

Will it affect moving parts or vehicle components?

The lanolin-based formulation is designed to be safe on metal and moving components when applied properly, but avoid coating brake surfaces, clutch faces, or other friction-critical parts. Use targeted application and masking to preserve operation where friction and precision are required.

• Safe for most metal moving parts when clearance is maintained
• Not intended for brake pads, clutch surfaces, or precision bearings
• Resists sagging so it won’t run into unwanted areas when applied correctly

Who is this for: Blaster Surface Shield Black is aimed at professional technicians, DIY enthusiasts, fleet managers and equipment owners who want a long-lasting, cosmetically discreet undercoat. If you need a durable rust barrier that combines extended corrosion resistance with a black finish to hide imperfections—and a product that stands up to pressure washing—this pail is built for those jobs.