BlackTop is a permanent, moisture-cured, UV stable coating primarily used for topcoating surfaces previously sealed with RustSeal or any other paint/primer application. BlackTop is a high performance protective coating specifically formulated to withstand dulling and fading caused by prolonged sunlight exposure. BlackTop may be used alone as a resilient coating but it will not offer the ultimate rust protection unless it is used in combination with RustSeal. For the best stop rust & ultraviolet protection, first apply RustSeal to permanently seal the surface and then topcoat with BlackTop for an incredibly tough and professional looking finish. Available in Gloss Black, OEM Satin Black & Flat Black. Like RustSeal, BlackTop dries to a rock hard yet flexible coating that can be readily applied to chassis, coil springs and light weight panels. BlackTop also has high heat resistance and can be applied to almost all automotive applications except exhaust systems.