Looking for the best filler primers to smooth scratches and dents? From my own projects, I’ve put together a quick guide to the top 10 fast‑drying, rust‑blocking primers like Rust‑Oleum and Dupli‑Color that give a flawless finish.
Filler primerssmooth out scratches and dents on cars, wood, metal, and fiberglass for a professional finish. Popular brands like Rust-Oleum and Dupli-Color deliver quick-drying, rust-fighting formulas that prep surfaces fast.
I’ve used Rust-Oleum’s gray filler primer to fix deep scratches on my old truck, and it sanded easily for a flawless paint job. Trust me to find the perfect primer guide for your auto repairs. Dive in to discover top picks that save time and enhance results.
List of Top 10 Filler Primers
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Rust-Oleum 260510 Stops Rust Automotive 2-in-1 Filler & Sandable Primer Spray, 12 oz, Gray |
This spray primer is perfect for DIY fixers and car buffs who need to stop rust and smooth out rough spots on cars, trucks, boats, and metal or wood parts. It works fast to fill dents and create a ready-to-paint base in just 10 minutes. |
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Rust-Oleum 260510-6PK Automotive 2-in-1 Filler & Sandable Primer Spray, Gray, 12 oz (Pack of 6) |
This 2-in-1 filler and sandable primer is perfect for DIY auto enthusiasts and vehicle owners who want to fix up cars, trucks, or boats quickly. It saves time by stopping rust and filling small dents on wood, metal, or fiberglass surfaces with fast-drying ease. |
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Rust-Oleum 249279 Automotive Filler Primer Spray, 11 oz, Gray |
This filler primer spray is perfect for car lovers and diy fixers who want to stop rust and smooth out scratches on cars, trucks, or metal parts. It works great on wood, fiberglass, and other surfaces for quick, easy repairs. |
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Seymour 20-1674 PBE Professional Primer, Gray Filler |
This product is perfect for body shop staff who need to cover deep scratches on car metal. It dries fast and handles heat, making their work quicker and easier. |
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Rust-Oleum 249279-2PK Automotive Filler Primer Spray, 11 oz, Gray, 2 Pack |
This spray primer is perfect for car lovers and home fixers who need to stop rust on metal, wood, or fiberglass surfaces. It helps anyone tackling small scratches or repairs on cars, boats, or furniture, making jobs go fast and smooth. |
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Dupli-Color FP101 Scratch Filler Primer, Gray – 11 oz. Aerosol Can |
This Dupli-Color Scratch Filler Primer is perfect for car owners and DIY fixers who need to hide scratches and fix small dents on their vehicles. It’s great for hobbyists or mechanics working on metal, fiberglass, or wood parts inside or outside the car. |
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6-Pack of 11 oz Rust-Oleum Brands 249279 Gray Automotive Filler Primer Spray |
This primer spray is perfect for car owners and DIY mechanics fixing rusty cars. It fills dents and scratches fast with its hi-build formula and stops rust in its tracks. |
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Rust-Oleum 260737 Automotive Sandable Primer Spray, 12 oz, White |
This spray is perfect for car lovers and DIY fans who need to fix rust fast. It works great on bikes, trucks, and other metal parts for a smooth finish. |
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Rust-Oleum 254863 Automotive Filler Primer Brush On, Quart, Gray 32 Fl Oz (Pack of 1) |
This primer is perfect for car lovers or DIY tinkerers who want to stop rust and fill scratches on their cars, boats, or metal parts before painting. It’s a great choice for anyone fixing up metal, wood, or fiberglass surfaces at home. |
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Dupli-Color FP101-6 PK Scratch Filler Primer, Gray – 11 oz. Aerosol Can |
This scratch filler primer is perfect for car owners who want to fix deep scratches and minor imperfections on their vehicles. It’s great for DIY enthusiasts working on metal, fiberglass, or wood surfaces to get a smooth, rust-resistant base before painting. |
Detailed Reviews
Discover the top 10 filler primers picked by our team through careful expert checks and real user feedback. These picks offer strong rust protection, smooth fixes for scratches, and easy-to-use sprays or brushes for many jobs. Feel sure that our guide will lead you to the perfect choice for your car or home tasks. Keep reading to see how each one stands out and saves you time and cash.
1. Rust-Oleum 260510 Stops Rust Automotive 2-in-1 Filler & Sandable Primer Spray, 12 oz, Gray
Rust-Oleum Stops Rust is a 2-in-1 filler and sandable primer spray that works great on wood, metal, and fiberglass. It fights rust and gives your vehicles a strong base in just one step.
You can paint up to 10 square feet with this oil-based formula. It dries fast in 10 minutes, so you can keep going. The spray system lets you paint from any angle with ease.
This hi-build primer fills small dents and sands smooth for a perfect look. It makes your top coat stick well and saves you time. Grab it now and make your car shine!
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Perfect For:
This spray primer is perfect for DIY fixers and car buffs who need to stop rust and smooth out rough spots on cars, trucks, boats, and metal or wood parts. It works fast to fill dents and create a ready-to-paint base in just 10 minutes.
Ready to Purchase?
2. Rust-Oleum 260510-6PK Automotive 2-in-1 Filler & Sandable Primer Spray, Gray, 12 oz (Pack of 6)
Rust-Oleum 2-in-1 Filler & Sandable Primer is a gray spray that fixes and primes in one step. It works great on wood, metal, and fiberglass for cars and trucks.
This primer is oil-based and stops rust fast. It covers up to 10 square feet. It dries in just 10 minutes so you can recoat it quickly.
Buy a pack of 6 cans now to save time on tough jobs. It fills bumps and sands smooth for a perfect finish.
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Perfect For:
This 2-in-1 filler and sandable primer is perfect for DIY auto enthusiasts and vehicle owners who want to fix up cars, trucks, or boats quickly. It saves time by stopping rust and filling small dents on wood, metal, or fiberglass surfaces with fast-drying ease.
Ready to Purchase?
3. Rust-Oleum 249279 Automotive Filler Primer Spray, 11 oz, Gray
Rust-Oleum makes a top filler primer spray for cars and trucks. It works on wood, metal, and fiberglass surfaces. This oil-based spray stops rust and covers up to 12 square feet.
It fills minor scratches to leave a smooth surface. The Stops Rust formula fights corrosion well.
It dries fast in 10 minutes and can be sprayed in any direction. This flat finish sticks strong to topcoat paint. It works great as a rust-resistant base for vehicles.
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Perfect For:
This filler primer spray is perfect for car lovers and diy fixers who want to stop rust and smooth out scratches on cars, trucks, or metal parts. It works great on wood, fiberglass, and other surfaces for quick, easy repairs.
Ready to Purchase?
4. Seymour 20-1674 PBE Professional Primer, Gray Filler
Seymour 20-1674 PBE Professional Primer works great for auto body shops. It hides deep scratches on metal parts. This primer meets the needs of pros every day.
It dries fast and creates a thick coat. You can sand it right away.
The large sprayhead sprays evenly for a pro look. It stays strong up to 250°F. Plus, it’s VOC compliant for safe use. Get it now and fix scratches like a boss.
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Perfect For:
This product is perfect for body shop staff who need to cover deep scratches on car metal. It dries fast and handles heat, making their work quicker and easier.
Ready to Purchase?
5. Rust-Oleum 249279-2PK Automotive Filler Primer Spray, 11 oz, Gray, 2 Pack
Get a smooth finish with Rust-Oleum Automotive Filler Primer Spray. It works great on metal, wood, and fiberglass. This gray primer comes in a handy 2-pack of 11 oz cans.
The oil-based formula stops rust and fights corrosion. It helps paint stick better for a strong topcoat. Plus, it fills scratches and nicks for an even surface.
It dries fast—in just 10 minutes to the touch. Spray it any way you need, even upside down, and cover up to 12 square feet per can.
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Perfect For:
This spray primer is perfect for car lovers and home fixers who need to stop rust on metal, wood, or fiberglass surfaces. It helps anyone tackling small scratches or repairs on cars, boats, or furniture, making jobs go fast and smooth.
Ready to Purchase?
6. Dupli-Color FP101 Scratch Filler Primer, Gray – 11 oz. Aerosol Can
Dupli-Color FP101 Scratch Filler Primer is a top car spray paint that fills deep scratches and flaws fast. It dries quickly and sands easy to make a smooth rust-resistant surface. The EZ Touch Fan Spray Nozzle helps it stick well for a strong top coat.
This primer works great on metal fiberglass and wood for inside and outside jobs. Dupli-Color has been a trusted brand since 1938 for easy vehicle fixes.
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Perfect For:
This Dupli-Color Scratch Filler Primer is perfect for car owners and DIY fixers who need to hide scratches and fix small dents on their vehicles. It’s great for hobbyists or mechanics working on metal, fiberglass, or wood parts inside or outside the car.
Ready to Purchase?
7. 6-Pack of 11 oz Rust-Oleum Brands 249279 Gray Automotive Filler Primer Spray
This spray primer comes in a 6-pack of 11 oz cans. It uses a hi-build formula that works well on cars. Use it to prepare your vehicle for paint.
The filler primer fills in imperfections like dents and scratches. Its stops rust formula protects metal from rust. The any-angle spray with comfort tip lets you spray easily up or down.
Buy this now for better car repair. Fix your ride fast and simple.
| Pros | Cons |
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Perfect For:
This primer spray is perfect for car owners and DIY mechanics fixing rusty cars. It fills dents and scratches fast with its hi-build formula and stops rust in its tracks.
Ready to Purchase?
8. Rust-Oleum 260737 Automotive Sandable Primer Spray, 12 oz, White
Say goodbye to ugly rust on your car. The Rust-Oleum spray primer fixes it fast.
It dries quick so you can work right away. It sprays from any angle with an easy tip. It even sands smooth for a pro look.
Get the Stops Rust formula for tough jobs. This all-purpose spray works on many surfaces. Pick it up now and save your ride.
| Pros | Cons |
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Perfect For:
This spray is perfect for car lovers and DIY fans who need to fix rust fast. It works great on bikes, trucks, and other metal parts for a smooth finish.
Ready to Purchase?
9. Rust-Oleum 254863 Automotive Filler Primer Brush On, Quart, Gray 32 Fl Oz (Pack of 1)
This brush-on primer works great on metal, wood, and fiberglass. It has an oil-based formula that stops rust and keeps out corrosion. The primer also helps the next coat of paint stick better.
You can dry to the touch in just 10 to 15 minutes. It covers about 40 to 50 square feet per quart. This product fills small scratches and nicks for a smooth, ready-to-paint surface.
Get your surfaces looking new fast with this filler primer. Just remember to avoid high heat areas over 350 degrees.
| Pros | Cons |
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Perfect For:
This primer is perfect for car lovers or DIY tinkerers who want to stop rust and fill scratches on their cars, boats, or metal parts before painting. It’s a great choice for anyone fixing up metal, wood, or fiberglass surfaces at home.
Ready to Purchase?
10. Dupli-Color FP101-6 PK Scratch Filler Primer, Gray – 11 oz. Aerosol Can
Dupli-Color Scratch Filler Primer fixes deep scratches and small dings on your car. It comes in an 11 oz. aerosol can ready to spray.
This primer dries fast and sands easy for a smooth, rust-free base. It helps your top paint stick well. Use it on metal, fiberglass, or wood inside or outside your vehicle.
The spray nozzle covers well for even results. It’s dry in 30 minutes and ready to touch in 1 hour. Dupli-Color has been a top brand since 1938 for easy car fixes.
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Perfect For:
This scratch filler primer is perfect for car owners who want to fix deep scratches and minor imperfections on their vehicles. It’s great for DIY enthusiasts working on metal, fiberglass, or wood surfaces to get a smooth, rust-resistant base before painting.
Ready to Purchase?
Buying Guide
Filler primers help fix scratches and dents on cars, wood, metal, and fiberglass. They give a smooth base for professional paint jobs.
I once fixed my old truck with Rust-Oleum’s gray filler primer. It filled deep scratches and dried fast for easy sanding.
- Coverage area: Check the square feet each can covers like 10 or 12. More coverage means less product for big jobs.
- Drying time: Look for fast dry times of 10 to 30 minutes. Quick drying lets you paint soon after.
- Surfaces it works on: Pick primers for metal, wood, and fiberglass. This fits most car and home repairs.
- Rust protection: Choose stops rust formulas for long lasting metal. It fights rust to keep surfaces safe.
- Ease of application: Spray types work from any angle with easy tips. This makes it simple to use on all spots.
- Sandability: Select sandable options for smooth finishes. They fill dents well for a pro look.
- Brand and type: Pick trusted brands like Rust-Oleum or Dupli-Color. Get spray or brush-on based on your needs.
- Quantity and price: Buy packs for savings on large tasks. Compare costs for the best deal.
- Formula details: Oil-based ones stick strong and protect well. They work for auto and custom jobs.