B'laster Surface Shield B'laster Surface Shield, a leading spray-on rust protectant, provides unmatched corrosion resistance for up to 2 years, outperforming competitors and saving you effort. Surface Shield is formulated for easy application, offering unparalleled protection against corrosion on all metal surfaces, equipment, and moving parts. For even better results, treat surfaces first with B'laster Rust Penetrant or B'laster Metal Rescue Rust Remover, then apply Surface Shield as a formidable barrier against further corrosion. Features: Spray-on lanolin (wool wax) barrier against rust Available in natural / untinted and black formulations Natural version leaves a light amber colored film Max operating temperature: 175 degree F Sprays on thick and evenly and wax element remains tacky over time Up to 2 years of surface protection - making it the longest-lasting rust protectant available Extreme moisture-wicking action Long-lasting lubrication Non-toxic, safe, and low VOC for use on all metal surfaces Does not harm paint Safe on glass, rubber, plastic and wiring Use on All Metal Surfaces, Equipment & Moving Parts Mild cedar oder