What are the best filler primers for vehicles?
Read real user stories that show how these primers brought cars back to life by smoothing out scratches and boosting professional finishes.
Filler primers for vehicles help fix scratches and imperfections on cars. They create a smooth base before painting. Oil-based ones stop rust and last long.
These products work on metal, wood, and fiberglass. They dry quick and sand easy. Buyers pick them for easy repairs and pro results.
You can trust our guide on the best filler primers. It helps fix vehicles right. Read on for real user stories that show how these primers make cars look new again.
List of Top 10 Filler Primers for Vehicles
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Rust-Oleum 260510 Stops Rust Automotive 2-in-1 Filler & Sandable Primer Spray, 12 oz, Gray |
This is great for people who fix cars and want a fast, strong base. The 2 in 1 filler and primer works on wood, metal and fiberglass, dries in 10 minutes, sands smooth, and uses the Stops Rust formula to help paint stick. |
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Rust-Oleum 260510-6PK Automotive 2-in-1 Filler & Sandable Primer Spray, Gray, 12 oz (Pack of 6) |
This rust-stopping primer is perfect for DIY car enthusiasts who want to fix up their vehicles at home. It saves time for mechanics and hobbyists who need a quick-drying, sandalble base coat for metal, wood, or fiberglass parts. |
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Rust-Oleum 249279 Automotive Filler Primer Spray, 11 oz, Gray |
This filler primer spray is perfect for car owners who need to fix small scratches and rust on metal, wood, or fiberglass surfaces. It’s also great for DIY auto fans wanting a quick-dry base that stops rust and gives a smooth finish ready for paint. |
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Seymour 20-1674 PBE Professional Primer, Gray Filler |
This primer is perfect for auto body shop workers who need a quick fix for car scratches. It helps professionals create a smooth, ready-to-sand base fast. |
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U-POL Expert Color Filler Primer, Automotive Primer, Professional Grade, Fills Imperfections, Easy-To-Use, Gray |
This primer is perfect for professional auto body techs and DIY car enthusiasts who want a smooth, flawless base. It’s easy to use, dries fast, and works for both small touch‑ups and larger jobs. |
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Dupli-Color FP101 Scratch Filler Primer, Gray – 11 oz. Aerosol Can |
This scratch filler primer is perfect for DIY car enthusiasts and home mechanics who want to fix deep scratches and imperfections on metal, fiberglass, or wood surfaces. It helps create a smooth base for top coats, making it easy to repaint cars inside or outside. |
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Dupli-Color BPR0031 Gray Perfect Match Scratch Filler Primer – 8 oz. Aerosol |
This primer is perfect for car owners and DIY fixers who want to repair scratches and smooth out damaged paint on their vehicles easily and fast. It’s great for anyone needing a quick solution before painting their car with matching colors. |
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Dupli-Color FP101-6 PK Scratch Filler Primer, Gray – 11 oz. Aerosol Can |
This primer is perfect for home car repairs and small shops that want to fill deep scratches on metal, fiberglass, or wood. It dries fast, sands smooth, and helps top coats stay even. |
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Rust-Oleum 254863 Automotive Filler Primer Brush On, Quart, Gray 32 Fl Oz (Pack of 1) |
This filler primer is for DIYers who fix metal, wood, or fiberglass surfaces. It stops rust, fills minor scratches, and dries to touch in 10-15 minutes, so you can paint quickly. |
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Rust-Oleum 249320 Automotive Filler Primer Spray, 11 oz, Red |
This Rust-Oleum filler primer is perfect for DIY car enthusiasts and vehicle owners who want to fix minor dents or cover rust on cars, trucks, or other vehicles made of wood, metal, or fiberglass. It fills imperfections quickly and gives a strong, rust-resistant base that you can paint over for a smooth finish. |
Detailed Reviews
Best Filler Primers for cars stand out as top picks from expert checks and user talks, blending strong performance, easy use, and great value. Our guide dives deep into key features like rust stop and smooth fill, giving you smart tips for any job. Get set to find the perfect match that boosts your vehicle’s look and save—read on to see why these shine.
1. Rust-Oleum 260510 Stops Rust Automotive 2-in-1 Filler & Sandable Primer Spray, 12 oz, Gray

This is the Rust-Oleum 260510 Stops Rust 2-in-1 filler and primer. It covers up to 10 sq ft and dries in 10 minutes. It fills flaws and sands smooth for a flat finish.
The hi-build formula fills minor imperfections. The advanced spray system and comfort spray tip spray at any angle.
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Perfect For:
This is great for people who fix cars and want a fast, strong base. The 2 in 1 filler and primer works on wood, metal and fiberglass, dries in 10 minutes, sands smooth, and uses the Stops Rust formula to help paint stick.
Ready to Purchase?
2. Rust-Oleum 260510-6PK Automotive 2-in-1 Filler & Sandable Primer Spray, Gray, 12 oz (Pack of 6)

The Rust-Oleum 260510-6PK Automotive 2-in-1 Filler & Sandable Primer Spray works on wood, metal, and fiberglass. It is an oil-based 2-in-1 paint with a Stops Rust formula.
It covers up to 10 sq. ft. and dries to the touch in 10 minutes. It can be recoated after drying.
It fills minor surface imperfections. It sands smooth for a flat finish. It helps the top coat stick.
| Pros | Cons |
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Perfect For:
This rust-stopping primer is perfect for DIY car enthusiasts who want to fix up their vehicles at home. It saves time for mechanics and hobbyists who need a quick-drying, sandalble base coat for metal, wood, or fiberglass parts.
Ready to Purchase?
3. Rust-Oleum 249279 Automotive Filler Primer Spray, 11 oz, Gray

Rust-Oleum Automotive Filler Primer Spray works great on wood, metal, and fiberglass surfaces. Its oil-based formula includes a Stops Rust feature for strong rust protection on vehicles.
This spray covers up to 12 square feet and dries fast in just 10 minutes. The any-angle spray lets you apply it from any position to fill minor scratches smoothly.
It leaves a flat finish ready for any topcoat. You get excellent adhesion and corrosion prevention. Fix surface nicks easily for a paintable surface.
| Pros | Cons |
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Perfect For:
This filler primer spray is perfect for car owners who need to fix small scratches and rust on metal, wood, or fiberglass surfaces. It’s also great for DIY auto fans wanting a quick-dry base that stops rust and gives a smooth finish ready for paint.
Ready to Purchase?
4. Seymour 20-1674 PBE Professional Primer, Gray Filler

The Seymour 20-1674 PBE Professional Primer is specifically formulated for body shop personnel. It works hard to minimize the appearance of deep surface scratches on metal surfaces. This primer helps fix cars quickly and well.
It dries fast to create a thick, sandable base coat in no time. The large sprayhead gives a professional looking application every time. Pros love how it sprays so easy.
This primer is heat resistant up to 250°F and is VOC Compliant. Grab it now and make your repairs shine.
| Pros | Cons |
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Perfect For:
This primer is perfect for auto body shop workers who need a quick fix for car scratches. It helps professionals create a smooth, ready-to-sand base fast.
Ready to Purchase?
5. U-POL Expert Color Filler Primer, Automotive Primer, Professional Grade, Fills Imperfections, Easy-To-Use, Gray

U-POL Expert Color Filler Primer is a professional-grade auto primer that fills imperfections while helping match colors perfectly. It sticks well to surfaces and leaves a smooth base for painting.
Expert filler technology gives a flawless finish. It sands with ease and dries quickly. Use it for small fixes or big jobs on your car.
This primer works as part of a complete 3-step routine to prime, paint, and protect your vehicle. Dry to the touch in just 30 minutes for fast results. Try U-POL products from world leaders in auto refinishing.
| Pros | Cons |
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Perfect For:
This primer is perfect for professional auto body techs and DIY car enthusiasts who want a smooth, flawless base. It’s easy to use, dries fast, and works for both small touch‑ups and larger jobs.
Ready to Purchase?
6. Dupli-Color FP101 Scratch Filler Primer, Gray – 11 oz. Aerosol Can

Dupli-Color FP101 Scratch Filler Primer is a gray automotive spray paint in an 11 oz. aerosol can. It works fast to fill deep scratches and fix minor dents.
This high-build primer dries quickly. It sands easy. It helps top coat paint stick well.
Use it on metal, fiberglass, and wood for cars inside or out. Dupli-Color is a trusted brand since 1938.
| Pros | Cons |
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Perfect For:
This scratch filler primer is perfect for DIY car enthusiasts and home mechanics who want to fix deep scratches and imperfections on metal, fiberglass, or wood surfaces. It helps create a smooth base for top coats, making it easy to repaint cars inside or outside.
Ready to Purchase?
7. Dupli-Color BPR0031 Gray Perfect Match Scratch Filler Primer – 8 oz. Aerosol

Dupli-Color Perfect Match is a top-notch scratch filler primer. It dries quickly and fills in blemishes on your car. Now you can get a smooth base before adding color.
This primer comes in an easy spray can. It has an adjustable nozzle for even coverage anywhere.
It’s sandable once dry. Pick it up today to fix your ride right.
| Pros | Cons |
|---|---|
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Perfect For:
This primer is perfect for car owners and DIY fixers who want to repair scratches and smooth out damaged paint on their vehicles easily and fast. It’s great for anyone needing a quick solution before painting their car with matching colors.
Ready to Purchase?
8. Dupli-Color FP101-6 PK Scratch Filler Primer, Gray – 11 oz. Aerosol Can

Dupli-Color Scratch Filler Primer fills deep scratches and minor dents on cars. It dries fast and sands to a smooth, rust-resistant surface.
This automotive primer uses a fan spray nozzle for even coverage. It helps top coat paint stick better. Dry to touch in 30 minutes.
Dupli-Color has made quality car products since 1938. Use it on metal, fiberglass, or wood. Trust this brand for easy repairs.
| Pros | Cons |
|---|---|
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Perfect For:
This primer is perfect for home car repairs and small shops that want to fill deep scratches on metal, fiberglass, or wood. It dries fast, sands smooth, and helps top coats stay even.
Ready to Purchase?
9. Rust-Oleum 254863 Automotive Filler Primer Brush On, Quart, Gray 32 Fl Oz (Pack of 1)

Rust-Oleum Automotive Filler Primer is a brush-on formula in a gray quart that works great on metal, wood, and fiberglass surfaces. This oil-based product stops rust and shields surfaces from corrosion while helping your top paints stick better.
It dries to the touch in just 10-15 minutes and covers 40-50 square feet per quart. The primer fills in small scratches and nicks to create a flat, ready surface.
Grab your brush and start painting. Do not use on hot areas over 350°F. Seal and protect your project with ease.
| Pros | Cons |
|---|---|
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Perfect For:
This filler primer is for DIYers who fix metal, wood, or fiberglass surfaces. It stops rust, fills minor scratches, and dries to touch in 10-15 minutes, so you can paint quickly.
Ready to Purchase?
10. Rust-Oleum 249320 Automotive Filler Primer Spray, 11 oz, Red

This is the Rust-Oleum 249320 Automotive Filler Primer Spray, 11 oz, red. It sticks to wood, metal and fiberglass for a solid base.
It uses an oil-based formula with Stops Rust. It covers up to 12 sq ft and dries to the touch in 10 minutes, and can be recoated.
Filler spray paint fills minor flaws. Excellent rust resistance is built in. Flat finish lets any topcoat stick well.
| Pros | Cons |
|---|---|
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Perfect For:
This Rust-Oleum filler primer is perfect for DIY car enthusiasts and vehicle owners who want to fix minor dents or cover rust on cars, trucks, or other vehicles made of wood, metal, or fiberglass. It fills imperfections quickly and gives a strong, rust-resistant base that you can paint over for a smooth finish.
Ready to Purchase?
Buying Guide
Filler primers fix scratches and imperfections on vehicles. They create a smooth base before painting.
Users love how these primers restore old cars. One driver fixed a rusty bumper with Rust-Oleum spray and said it sanded easy for a pro finish. Another user filled dents on a truck bed using Dupli-Color and reported quick drying with rust stop that lasted. A body shop pro praised U-POL for deep scratch fixes, noting it matched colors well and held paint strong.
- Type of Primer: Spray primers are easy for quick jobs on large areas. Brush-on ones give control for small spots. Choose based on your repair size.
- Rust Protection: Oil-based formulas stop rust well over time. Look for products with rust-stop features. These keep metal safe from damage.
- Drying Time: Fast-dry options save time, ready in 10 to 30 minutes. Check for recoat ability after drying. This fits busy schedules.
- Coverage Area: Bigger cans cover more space, up to 12 square feet per can. Multi-packs offer savings for pros. Measure your job to match the right size.
- Surface Compatibility: Primers work on metal, wood, and fiberglass. Test for your car material. This ensures good stick and fill.
- Ease of Sanding: Sandable formulas create a flat base for painting. Quick-dry ones let you sand soon. This gives a smooth result.
- VOCs and Heat: Low-VOC primers are eco-friendly and safe indoors. Heat-resistant ones handle hot spots up to 350°F. Choose for your work space needs.
- Brand Reputation: Trusted brands like Rust-Oleum or Dupli-Color offer proven results. Check user reviews for real fixes. This builds trust in quality.