Top 5 Ranked Products
We analyzed millions of Amazon products to handpick the top recommendations just for you.

#1 Ranked
Dupli-Color FP101 Scratch Filler Primer, Gray – 11 oz. Aerosol Can
Price: $11.99
Rating: ★★★★★
ASIN: B000B6DG7C
Score: 92%
Overview:
The Dupli-Color FP101 Scratch Filler Primer is a specialized automotive paint primer designed to effectively fill deep scratches and minor imperfections on various surfaces. Packaged in an 11 oz. aerosol can, this primer features a high-build formulation that ensures a smooth and rust-resistant finish, making it suitable for use on metal, fiberglass, and wood surfaces. The fast-drying and sandable properties allow for easy feather edging, promoting a seamless application of top coat paint.
The EZ Touch Fan Spray Nozzle enhances the application process by providing maximum coverage, ensuring an even and long-lasting finish. The primer dries to the touch in just 30 minutes and can be handled within an hour, making it convenient for quick automotive touch-ups. Dupli-Color has been a trusted brand since 1938, known for its innovative products that cater to vehicle restoration and customization needs.
Pros:
- High-Build Formulation: Effectively fills deep scratches and imperfections, ensuring a smooth surface.
- Fast-Drying: Dries to the touch in 30 minutes, allowing for quick project completion.
- Versatile Application: Suitable for various surfaces including metal, fiberglass, and wood.
Cons:
- Limited Coverage: The 11 oz. can may not be sufficient for larger projects, requiring multiple cans.
- Requires Sanding: While it sands easily, additional steps may be needed for a perfect finish.
- Potential Overspray: As an aerosol product, there may be a risk of overspray if not applied carefully.

#2 Ranked
U-POL 1 Gallon (4.2 VOC) High Solids High Build Urethane Primer Kit with Standard (60 to 95 F) Temperature Hardener
Price: $102.48
Rating: ★★★★★
ASIN: B003TQGGNM
Score: 97%
Overview:
The U-POL 1 Gallon High Solids High Build Urethane Primer Kit is designed for automotive and industrial applications, providing a robust foundation for topcoats. This primer features a European-style multi-function formula that allows for direct application on metal surfaces, ensuring excellent adhesion and durability. With a high build characteristic and a 4 to 1 mixing ratio, it offers superior opacity and hiding power, making it suitable for various surface imperfections. The versatility of application methods—air drying, low baking, or infrared curing—enhances its usability across different environments and conditions.
The primer is formulated with a 4.2 VOC content, aligning with regulatory standards while still delivering high performance. Its ability to cure effectively at temperatures ranging from 60 to 95 degrees Fahrenheit means it can be used in a variety of climates. This primer is particularly beneficial for professionals seeking a reliable and efficient solution for preparing metal surfaces before painting, ensuring a smooth and even finish that enhances the longevity of the topcoat.
Pros:
- High Build Formula: Provides excellent opacity and hiding power for surface imperfections.
- Versatile Application: Can be air dried, low baked, or I.R. cured, offering flexibility in use.
- Direct-to-Metal Application: Ensures strong adhesion on metal surfaces without the need for additional primers.
Cons:
- 4.2 VOC Content: May not be suitable for all regions due to environmental regulations.
- Temperature Sensitivity: Requires specific temperature range (60 to 95 F) for optimal performance.
- Mixing Ratio Complexity: The 4 to 1 mixing ratio may be challenging for inexperienced users.

#3 Ranked
Speedokote Automotive High Build 2K Urethane Primer Gray Gallon Kit SMR-210/211, Activator is included. For California, Delaware, or Maryland, order SMR-221/222.
Price: $109.00
Rating: ★★★★☆
ASIN: B00M8BEWBM
Score: 95%
Overview:
The Speedokote Automotive High Build 2K Urethane Primer is designed for automotive refinishing, providing a robust foundation for paint applications. This primer features a high build formulation that allows for excellent surface leveling, making it suitable for various substrates. Its quick drying properties facilitate faster project completion, while the included activator ensures optimal performance in specific regions like California, Delaware, or Maryland.
The primer boasts exceptional adhesion capabilities, allowing it to bond well with different surfaces, enhancing the durability of the topcoat. Additionally, the easy sanding feature allows for smooth surface preparation, which is crucial for achieving a professional finish. This product is ideal for automotive enthusiasts and professionals looking for a reliable primer that delivers on performance and efficiency.
Pros:
- High Build Urethane Formula: Provides excellent surface leveling for a smooth finish.
- Great Adhesion: Bonds well with a variety of substrates, enhancing paint durability.
- Fast Drying Time: Allows for quicker project turnaround, saving time during application.
Cons:
- Limited Regional Availability: Specific formulations required for certain states may complicate ordering.
- Requires Activator: The need for an activator may add complexity to the application process.
- Potential for Overspray: As with many primers, careful application is necessary to avoid excess overspray.

#4 Ranked
Eastwood 2K Epoxy Gray Primer | AeroSpray Catalyzed Technology | Durable Direct to Metal Epoxy Primer Automotive | Performance Primer on Car Body Filler & Fiberglass | 10-16 Sq Ft Coverage | 12 oz
Price: $39.99
Rating: ★★★★☆
ASIN: B07Q5G8STD
Score: 93%
Overview:
The Eastwood 2K Epoxy Gray Primer is a high-performance automotive primer designed to provide a durable finish on various surfaces, including metal and fiberglass. Utilizing advanced AeroSpray Catalyzed Technology, this primer combines a two-component formula that includes premium epoxy paint and an activator, ensuring strong adhesion and effective rust prevention. With a coverage area of 10-16 square feet per 12 oz can, it is suitable for both professional and DIY applications, allowing users to achieve a professional-quality spray without the need for expensive equipment.
The primer features an innovative nozzle that delivers a wide fan pattern, enhancing application efficiency and ensuring an even coat. Eastwood's commitment to quality is evident, as the product is made in Germany using proprietary technology, and it comes with an impressive 3-year shelf life. Additionally, the product is backed by a 60-day limited warranty and 90-day return policy, providing users with peace of mind. However, safety precautions are emphasized, requiring appropriate protective gear and ventilation during use.
Pros:
- Durable Finish: Effectively prevents rust and extends the life of paint jobs.
- Innovative Nozzle: Sprays in a wide fan pattern for even coverage.
- Long Shelf Life: 3-year shelf life and 48-hour pot life once activated.
Cons:
- Safety Precautions Required: Necessitates the use of protective gear and proper ventilation.
- Limited Warranty: Only a 60-day limited warranty may not cover long-term use issues.
- Coverage Limitations: Coverage of 10-16 sq ft may be insufficient for larger projects.

#5 Ranked
Rust-Oleum, Gray, GrayRust-Oleum 249279 Automotive Filler Primer Spray Paint, 11 oz, 11 Ounce, 11 Fl Oz
Price: $7.47
Rating: ★★★★☆
ASIN: B003CT4AM0
Score: 83%
Overview:
The Rust-Oleum 249279 Automotive Filler Primer Spray Paint is a versatile oil-based primer designed for use on a variety of surfaces including wood, metal, and fiberglass. With a unique Stops Rust formula, it provides a rust-resistant base coat ideal for automotive applications, ensuring long-lasting protection against corrosion. The spray paint covers up to 12 square feet and dries quickly, allowing for recoating within 10 minutes, which enhances its efficiency for users looking to complete projects promptly. Its filler properties effectively address minor surface imperfections, creating a smooth and paintable finish.
The product's innovative any-angle spray technology enables users to spray in any direction, including upside down, which adds convenience during application. The flat finish of the primer allows for superior adhesion of subsequent topcoats, making it a reliable choice for automotive refinishing. However, it is important to note that this product is not available for sale in Catalina Island, which may limit accessibility for some consumers.
Pros:
- Rust Resistance: The Stops Rust formula ensures excellent protection against corrosion and rust.
- Quick Drying: Dries to the touch in just 10 minutes, allowing for faster project completion.
- Any-Angle Spray Technology: Users can spray from any angle, including upside down, enhancing usability.
Cons:
- Limited Coverage: While it covers up to 12 sq ft, larger projects may require multiple cans.
- Flat Finish: The flat finish may require additional topcoats for a desired aesthetic, adding to project time.