Rust-Oleum Engine Primer Spray bonds to bare metal and helps create a smooth surface for top coat application. It is formulated to prevent rust and is recommended for use on automotive engines and other automotive surfaces which reach intermittent temperatures up to 500°F (260°C). For maximum protection, top coat with Rust-Oleum Engine Enamel. Engine Primer features an advanced spray system that allows you to spray at any angle, even upside down for those hard to reach areas. A comfort spray tip with a wider finger pad reduces fatigue caused by continuous spraying.
Use outdoors or in a well ventilated area such as an open garage. Use when temperature is between 50-90°F (10- 32°C) and humidity is below 85% to ensure proper drying. Do not apply to galvanized metal. Do not use on metal directly exposed to flames. Avoid spraying in very windy and dusty conditions. Cover surrounding area to protect from spray mist.
Surface Preparation
Wash the surface with a commercial detergent, or other suitable cleaning method. Rinse with fresh water and dry with a clean cloth. Remove loose paint and rust with a wire brush or sandpaper until the metal surface is completely bare. Lightly sand smooth and glossy surfaces.
Application
Shake can vigorously for one minute after the mixing ball begins to rattle. If mixing ball fails to rattle DO NOT STRIKE CAN. Contact Rust-Oleum. Shake often during use. Hold can 12-16" from surface and spray in a steady back-and-forth motion, slightly overlapping each stroke. Keep the can the same distance from the surface and in motion while spraying. For best adhesion, apply ONE thin coat. Do not apply a heavy coat or multiple coats of Auto Plastic Primer. Do not use near open flame.
Properties of automotive engine primer spray
Brand
Rust-Oleum
Resin Type
Modified Alkyd
Pigment Type
Titanium Dioxide
Solvents
Acetone, Aliphatic and Aromatic Hydrocarbons
MIR
1.2 Max
Fill Weight
340 Grams
Recommended Dry Film Thickness (DFT) Per Coat
1.5-2.5 mils (37.5-62.5µ)
Practical Coverage at Recommended DFT
10-12 sq.ft./can
Dry Times at 70-80°F (21-27°C) and 50% Relative Humidity
20 minutes to touch and re-coat with an hour or after 48 hours
