Rustoleum Rusty Metal Primer Review

Rustoleum Rusty Metal Primer Review

Rust and corrosion are almost inevitable for iron and steel metals subjected to constant moisture and oxygen. Typically, rust is formed when iron or its alloys corrode.

Iron will react with oxygen to form an iron oxide, which we see as rust. Well, let me not bore you with the science of corrosion.

There are various ways to treat rust and further prevent them from occurring. So if you have any metallic structure that is continuously subjected to these factors, then you can use preventive measures to deal with it.

One of the most affordable means for anyone to stop rust and increase the lifespan of their metallic structures and properties is by coating it with a suitable paint or primer. The Rustoleum rusty metal primer is one primer that has been widely used by many.

So in this article, we will be doing the Rustoleum rusty metal primer review to see if it is worth the claims.

Read Also: Rustoleum Rust Reformer

Rustoleum Rusty Metal Primer Review

1. Rust-Oleum 249331 Automotive Rusty Metal Primer

This rusty primer is designed to protect heavily rusted surfaces. No matter how much rust the surface has got, with proper prepping and further priming, with this product, you can be sure to stop rust as long as possible with this product.

It is ideal to be used on any kind of surface, including cars, trucks, and other vehicles. This primer is available in a 12 oz. spray can and can cover about 12 sq ft.

One thing we like with this primer is the fast drying time. Typically, it dries to touch in 15 minutes. This means your job will be faster than normal.

Comparing to enamels, the Rust-Oleum automotive rusty metal primer delivers more than twice the rust protection.

The Stops Rust technology provides a long-lasting finish. With superior bonding with the worst rusted surface, your treated item will last longer, even with maximum exposure to corrosion factors.

Unlike some sprayer that ejects the content with splatters, and seizes before the content finishes, this one gives you great spray as it features comfort tip and any angle spray.

  • Any-Angle Spray with Comfort Tip
  • It is ideal for heavily rusted metal
  • Offers excellent coverage and fast drying time
  • Superior adhesion on the worst surface
  • No notable con with this product

2. RUST-OLEUM 8781502 Gray Alum Primer

A primer that offers excellent bond will make you repainting experience easy. The RUST-OLEUM 8781502 Gray Alum Primer is one of such as it gives you a great bond on rust surfaces.

Also, it is not selective on the type of finish. As it bonds well with the rusted surface, it also offers great adhesion to whatever finish it is coated with.

The pace at which you will complete your job is appealing as it features a fast drying time. Whether you are going to apply with a brush, roller, or sprayer, it is adaptive to any kind of application.

The primer dries to an attractive brown color. When using this product, we recommend you to avoid thick coat as much as possible. Over time, thick coats can peel. This also applies to most primers.

It is available in a 1Qrt. container, which means you can complete bulkier jobs as it furthers offer great coverage.

  • Strong protection with an overcoat
  • It is economical with its coverage
  • Easy to apply
  • Rust-bonding action
  • It requires preparation and finishing work for effectiveness

How Do You Use Rustoleum Rusty Metal Primer?

Rustoleum Rusty Metal Primer Review

So if you have got a heavily rusted metal and you wish to restore it to its original state and further prevent reoccurrence, then the Rustoleum rusty metal primer can help achieve this. The following steps are necessary when using the rusty metal primer.

Materials needed

  • Rustoleum rusty metal primer
  • Acetone
  • Sprayer, brush or roller
  • Sanding tools

Prep the surface

If it is possible, you can dismantle the parts to enable better access to all corners and hard to reach area.

Start by removing all rusted flakes as much as possible to reveal the base metal. Smooth the surface by using the sanding tool to scrub deep.

Apply the primer paint

We recommended mixing the Rustoleum rusty metal primer with acetone. Rustoleum rusty metal primer comes way too thick, and if you are going to be using sprayers for application, then you may want to thin the primer. The best way to do this is to mix the primer with acetone in a 2:1 ratio.

Apply the primer on the surfaces by spraying or brushing evenly until it covers as much imperfection as possible.

Rustoleum rusty metal primer dries to a dull brown color on the surface. After allowing drying for some hours, the metal is ready to be painted with your desired color and type of paint.

Read Also: How to Clean Paint on a Metal Door

Where To Buy Rusty Metal Primers

Rustoleum Rusty Metal Primer

If you have decided to use the rusty metal primer for your project, then you need to buy from a reputable home improvement shop. You should be able to get them from a shop near you.

But if you can’t get the exact products reviewed here, you can choose to buy from Amazon as they offer good shipping and quality customer service, plus you will be able to buy the exact product recommended here.

Frequently Asked Question

Can I use Rustoleum rusty metal primer on clean metal?

This product is specially designed for rust, and the formula is selected to work on a heavily rusted surface.

Unfortunately, it will not work on a clean surface unaffected by corrosion.

Why is this so? The fish oil present in the formula is there to penetrate the rusted surface to seal out moisture and air. Without rust, this oil will rise to the surface of the metal, which will make the adhesion of the finish coat difficult.

Can you paint over a rusted metal?

It is not ideal to paint directly over rusted metal without good prepping and priming. There are chances that corrosion will resume again if not treated with a rust metal primer, especially for metals that are constantly exposed to air and moisture.

Also, without prepping and priming, cracking and other painting defects will occur in the shortest possible time.

Does Rustoleum paint primer prevent rust?

Rustoleum is an inhibitive primer that stops rust and offers maximum protection on metallic structures. With these primers, you don’t need to get down to bare when prepping. Just clean off the flakes and powdery surface, and Rustoleum will perform the magic.

Does rustoleum rusty metal primer work?

The metal primer is a paint and rust converter in one. It’s oil-based and comes in one color choice. This primer is one of the best because it works well and works on most metal surfaces. For best results, the primer should be applied in 2 coats before applying the top paint.

Does rustoleum rusty metal primer work

What is the best primer for rusted metal?

Top 5 Best Paint Primers For Rusted Metal

  • Rust Converter Ultra.
  • Rust-Oleum Rusty Metal Primer.
  • Corroseal Water-Based Rust Converter Metal Primer.
  • Krylon Rust Protector.
  • TotalBoat Rust Primer Converter.

Do you have to top coat rustoleum rusty metal primer?

About Rusty Metal Primer

Transform heavily-rusted metal into a paintable surface with Rust-Oleum® Stops Rust Rusty Metal Primer. This primer bonds tightly to rust and forms a surface top coats can adhere to—with no need for additional top coats or touch-ups.

How long does it take for rustoleum rusty metal primer to dry?


Dry and recoat times are based on 70°F (21°C) and 50% relative humidity. Allow more time at cooler temperatures. Dries to the touch in 10-15 minutes and dries to handle in 1-2 hours. Top coat or recoat within 1 hour or after 48 hours.

How well does rustoleum work on rust?

Rust-Oleum Rust Reformer instantly bonds with rust and transforms it to a non-rusting, flat-black paintable surface. Formula contains rust preventive technology that hinders future rust. Unique product prepares rust for a new coat of paint and saves the effort of sanding rust all the way down to bare metal.

How do you use Rust-Oleum rusty metal primer?

Apply Touch Up Rusty Metal Primer to rusted areas. For deep scratches or chips, apply several coats a few minutes apart. Apply topcoat or additional primer when fully dry. Dry and recoat times are based on 70°F (21°C) and 50% relative humidity.

What primer kills rust?

Rust-Oleum® Stops Rust® Rusty Metal Primer stops rust and prevents corrosion. Apply to heavily rusted metal (use Rust-Oleum® Stops Rust® Clean Metal Primer on clean or lightly rusted metal). Bonds tightly to rust to form a surface top coats can adhere to.

What’s the best paint for rusty metal?

If you were able to remove all traces of rust with a wire brush or sandpaper, you can either prime with Krylon® Rust Protector™ Rust Preventative Primer or Krylon® Rust Tough® Enamel Primer, or you can choose to skip the priming step because Krylon Rust Protector and Rust Tough Enamels are specially formulated to offer.

What is the best paint to use on rusted metal?

One of our favorite rust paint brands to use when painting over rust is Rust-Oleum in a spray can. By using a spray can to paint over rust, you’ll get a more even texture rather than using a standard paintbrush. Using a spray can to paint allows for a more consistent and professional-looking paint job.

How many coats of Rustoleum primer do I need?

Apply 2-3 coats allowing 5-10 minutes of dry time between coats. For best results allow Primer to dry for 1 hour before dry sanding. Test in an inconspicuous area to be sure Primer is dry enough for sanding.


Our Rustoleum rusty metal primer review has given you everything you need to know about these series of primers. Rust-oleum is a popular brand in the manufacture of primers and paints of all kinds.

When buying any product from them, you should know you are buying quality products.

Most of their products listed on Amazon get an outpour of positive customer reviews, and so are their rusty metal primers.

These primers are worth it and one of the best and inexpensive way to prevent rust on your metals.

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