10 Best Automotive Primers 2025 in the United States

The Dupli-Color EBPR00310 Gray Perfect Match Scratch Filler Primer is an acrylic lacquer aerosol primer designed for easy use on both metal and plastic surfaces. One of its main strengths is its quick drying time, with the product becoming dry to the touch in just 30 minutes and fully curing in 6 hours. This makes it very convenient for users who need to complete their tasks quickly. The primer is also sandable, which helps in achieving a smooth surface before applying the topcoat.

The adjustable EZ Touch 360-degree nozzle and wide spray pattern ensure smooth, even coats, further enhancing the ease of application. It is specially formulated to fill scratches and provide a smooth base for topcoating, making it suitable for repairing chipped, scratched, or damaged surfaces before applying the final paint layer. However, it does not seem to offer specific corrosion resistance, which could be a drawback for projects involving metal surfaces exposed to harsh conditions. Additionally, while it is not water-resistant, it does offer a glossy finish that can be beneficial for aesthetic purposes.

For those looking to repair and prepare surfaces quickly and efficiently with a smooth finish, this primer is a solid choice, especially for projects primarily focused on aesthetic repairs rather than corrosion protection.

The Krylon 12 oz K05584007 White COLORmaxx Paint & Primer Spray Paint is a versatile product that combines both paint and primer in one can. This type of primer is convenient for those who need a quick and efficient solution for various surfaces including metal, wood, plastic, wicker, fabric, and glass. It dries relatively quickly, with a full cure time of 24 hours, which is quite standard. The rust-resistant feature is particularly beneficial for metal surfaces, providing an added layer of corrosion resistance that is crucial for automotive applications.

The primer also offers good adhesion and durability, making it a reliable choice for both indoor and outdoor projects. The easy-push, big-button tip is user-friendly and allows for application in any direction, even upside down, which adds to its versatility. However, it is noted that the product is not water-resistant, which could be a limitation in certain environments.

Additionally, some may find the coverage area of 25 square feet per can to be limited, potentially requiring multiple cans for larger projects. The sandability aspect is not explicitly mentioned, but given its multi-surface compatibility, it can be inferred that it performs adequately in this regard. This primer is a solid choice for those looking for a convenient spray application with good rust protection and multi-surface compatibility.

The Rust-Oleum 260510 Stops Rust Automotive 2-in-1 Filler & Sandable Primer Spray offers a versatile solution for both filling and priming surfaces like wood, metal, and fiberglass. Its oil-based formula is designed to prevent rust, making it particularly beneficial for cars, trucks, and other vehicles. One of its standout features is the quick drying time, as it can be recoated in just 10 minutes, which is great if you're working on a tight schedule.

The product also excels in sandability, allowing for a smooth finish that helps in achieving a professional look once the topcoat is applied. The advanced spray system enables you to spray at any angle, and the comfort spray tip reduces finger fatigue, making the application process easier and more efficient. On the downside, the 12 oz can covers up to 10 sq ft, which might require multiple cans for larger projects.

Additionally, while it is effective at filling minor imperfections, more significant damage may still need additional attention. This primer is a solid choice for those looking to save time and achieve a rust-resistant, smooth base for their paint jobs, but users with larger or more heavily damaged areas might need to consider supplementary products.