Best Rust Spray In June 2025

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Looking for some of the Best Rust Spray? As you may know, there are dozens of similar products out there and some come with vastly different price tags. Let us help you out here – we have handpicked for you the Best Rust Spray.

To help you in your search, we have completed this list of the Best Rust Spray.

Top Rated Best Rust Spray Of 2025

Rank Product Name Score
1
Rust-Oleum 248656 Professional Grade Rubberized Undercoating Spray, 15 oz, Black
Rust-Oleum 248656 Professional Grade Rubberized Undercoating Spray, 15 oz, Black
9.7
2
Rust-Oleum 215215 Stops Rust Rust Reformer Rust Reformer 10.25-Ounce Spray-Color Black
Rust-Oleum 215215 Stops Rust Rust Reformer Rust Reformer 10.25-Ounce Spray-Color Black
9.5
3
KRUD KUTTER MR32 The Must For Rust, 32-Ounce Trigger Spray
KRUD KUTTER MR32 The Must For Rust, 32-Ounce Trigger Spray
9.1
4
Rust-Oleum Automotive 248658 10.25-Ounce Rust Reformer Spray, Black
Rust-Oleum Automotive 248658 10.25-Ounce Rust Reformer Spray, Black
8.8
5
WD40 300035 Specialist Corrosion Inhibitor Spray - 6.5 oz
WD40 300035 Specialist Corrosion Inhibitor Spray - 6.5 oz
8.6
6
Permatex 81849 Rust Treatment, 10.25 oz. net Aerosol Can
Permatex 81849 Rust Treatment, 10.25 oz. net Aerosol Can
8.3
7
VHT SP229 Rust Convertor Can - 10.25 oz
VHT SP229 Rust Convertor Can - 10.25 oz
8.1
8
Iron OUT Spray Gel Rust Stain Remover, Remove and Prevent Rust Stains in
Iron OUT Spray Gel Rust Stain Remover, Remove and Prevent Rust Stains in
7.8
9
WD-40 300004 Specialist 11 oz. Rust Release Penetrant Spray with Smart Straw
WD-40 300004 Specialist 11 oz. Rust Release Penetrant Spray with Smart Straw
7.5
10
Rust-Oleum 7769830 Stops Rust Spray Paint, 12-Ounce, Flat Rusty Metal Primer
Rust-Oleum 7769830 Stops Rust Spray Paint, 12-Ounce, Flat Rusty Metal Primer
7.2

1. Rust-Oleum 248656 Professional Grade Rubberized Undercoating Spray, 15 oz, Black

1
9.7/10 our score

  • Perfect for use on bare or primed metal underbodies of cars, trucks, trailers, rvs and more
  • Professional-grade formula provides superior protection against corrosion and damage from water, salt and other chemicals
  • Dries to the touch in 1 hour and covers up to 10-15 sq. ft. per can
  • Features a wide, comfort spray tip and any-angle spray technology for easy painting even upside down
  • Undercoating helps deaden sound and reduce damage to parts

2. Rust-Oleum 215215 Stops Rust Rust Reformer Rust Reformer 10.25-Ounce Spray-Color Black

2
9.5/10 our score

  • Dries to touch in 20-40 minutes and covers up to 12 sq ft
  • Creates a flat black finish that can be painted 24 hours following application with any oil-based top coat
  • Water-based film forming product converts rust into a paintable surface, there's no need to sand to bare metal
  • Protects surface from future rust
  • For use on exterior or interior rusted metal surfaces only

3. KRUD KUTTER MR32 The Must For Rust, 32-Ounce Trigger Spray

3
9.1/10 our score

  • Wipe or rinse following use to provide a paint ready surface and create secure bond for topcoat
  • Protects bare metal from rust for up to a year
  • Unique rust remover and inhibitor removes and prevents rust in one step
  • Easy to use spray on application allows for completion of small projects quickly and soak in for larger projects
  • Water-based formulation penetrates into every void of a metal surface and dissolves rust/oxidation through chemical action

4. Rust-Oleum Automotive 248658 10.25-Ounce Rust Reformer Spray, Black

4
8.8/10 our score

  • Item package weight: 3.25 lb
  • Model number: 248658
  • Item package dimensions: 18.0" l x 18.0" w x 21.0" h
  • Country of origin: united states

5. WD40 300035 Specialist Corrosion Inhibitor Spray - 6.5 oz

5
8.6/10 our score

  • Protects metal parts, blocking rust and corrosion for up to one year outdoors and two years indoors
  • Protects metals up to 2 years
  • 50-state voc compliant
  • Blocks rust and corrosion

6. Permatex 81849 Rust Treatment, 10.25 oz. net Aerosol Can

6
8.3/10 our score

  • Easily applied, just brush or spray it on
  • Destroys rust on all automotive applications
  • Specially formulated to be used with body filler and fiberglass
  • Tough coating serves as an excellent protective primer that you can paint over
  • Within minutes, rust disappears and a durable black polymer coating develops

7. VHT SP229 Rust Convertor Can - 10.25 oz

7
8.1/10 our score

  • Rust convertor is a unique product designed to spray directly on rusted areas
  • Sprays on clear and turns to a black metal
  • Rust convertor sands to a smooth, even finish
  • This item is not for sale in catalina island
  • Prevent future rust from forming

8. Iron OUT Spray Gel Rust Stain Remover, Remove and Prevent Rust Stains in

8
7.8/10 our score

  • Made in the usa
  • Best on rust: #1 heavy-duty rust stain remover brand
  • Ideal for vertical and hard to reach surfaces, like showers, sinks, tubs and toilets above the water line
  • Ideal for geographic regions with hard water and high iron
  • Powerful gel clings to dissolve rust stains on contact, no scrubbing necessary
  • Quickly and easily removes the toughest rust stains from most surfaces in and around the home

9. WD-40 300004 Specialist 11 oz. Rust Release Penetrant Spray with Smart Straw

9
7.5/10 our score

  • Fast-acting formula
  • Quick and easy to use
  • Ideal for use on nuts, bolts, threads and locks
  • Extra-penetrating blu torch technology

10. Rust-Oleum 7769830 Stops Rust Spray Paint, 12-Ounce, Flat Rusty Metal Primer

10
7.2/10 our score

  • Creates a surface that topcoats can easily adhere to
  • Oil-based formula provides a durable protective coating with excellent rust prevention
  • Primer provides a base for excellent adhesion and withstands demanding, heavy-use environments
  • Use to prime exterior or interior heavily rusted metal surfaces only
  • Dries to touch in 15 minutes and covers up to 20 sq ft

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