5X TOUGHER: This product is 5x tougher than traditional lacquers with superior protection from heat, oil, and other automotive fluids and ideal for use on engine blocks, engine accessories, and other surfaces in the engine compartment. HIGH HEAT APPROVED: RAPTOR Engine Enamel Primer is for use before the application of RAPTOR Engine Enamel. When used in combination with RAPTOR Engine Enamel, it provides a finish that resists temperatures up to 600°F. PRO TIP: For best results, thoroughly shake the can for at least 2 minutes before use. Apply 2 coats @ 10 inches from the surface, waiting 5-10 mins between coats, and always wear safety goggles and rubber gloves before spraying. EASY TO USE: This primer spray is easy to use and dries fast with excellent adhesion. Suitable for use on all types of metals including steel, aluminum, and alloys. U-POL POWER & RAPTOR TOUGH: U-POL & RAPTOR are World leaders in automotive refinishing with a wide range of comprehensive products specializing in driving surface perfection including fillers, coatings, aerosols, adhesives, & truck-bed liners. RAPTOR Engine Enamel Primer is for use prior to the application of RAPTOR Engine Enamel. Ideal for use on engine blocks, engine accessories and other surfaces in the engine compartment. When used in combination with RAPTOR Engine Enamel, it provides a finish which resists temperatures up to 600°F and is 5x tougher than traditional lacquers with superior protection from heat, oil and other automotive fluids. It’s easy to use and dries fast with excellent adhesion. Suitable for use on all types of metals including steel, aluminum and alloys.