---
product_id: 16347118
title: "Corroseal Rust Converter & Metal Primer – Stops & Prevents Corrosion on Metal, Pro-Grade Rust Inhibitor for Cars, Trucks, Trailers, Marine & Industrial Equipment, 1 Gallon"
brand: "corroseal"
price: "$352"
currency: NZD
in_stock: true
reviews_count: 13
category: "Corroseal"
url: https://www.desertcart.nz/products/16347118-corroseal-rust-converter-and-metal-primer-stops-and-prevents-corrosion
store_origin: NZ
region: New Zealand
---

# One-step rust conversion & priming Covers 200-250 sq.ft. per gallon Durable anti-rust seal blocks moisture Corroseal Rust Converter & Metal Primer – Stops & Prevents Corrosion on Metal, Pro-Grade Rust Inhibitor for Cars, Trucks, Trailers, Marine & Industrial Equipment, 1 Gallon

**Brand:** corroseal
**Price:** $352
**Availability:** ✅ In Stock

## Summary

> 🛠️ Stop rust in its tracks — protect your ride and gear like a pro!

## Quick Answers

- **What is this?** Corroseal Rust Converter & Metal Primer – Stops & Prevents Corrosion on Metal, Pro-Grade Rust Inhibitor for Cars, Trucks, Trailers, Marine & Industrial Equipment, 1 Gallon by corroseal
- **How much does it cost?** $352 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/16347118-corroseal-rust-converter-and-metal-primer-stops-and-prevents-corrosion)

## Best For

- corroseal enthusiasts

## Why This Product

- Trusted corroseal brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Pro-Grade Coverage:** Each gallon covers up to 250 sq.ft., perfect for cars, trailers, and industrial gear.
- • **Effortless Application:** Brush, roll, or spray with a low-odor, water-based formula that cleans up with soap and water.
- • **Transform Rust Instantly:** Converts rust to a tough, paint-ready black coating—no sanding needed.
- • **Trusted by Pros & DIYers:** Made in the USA and relied on by mechanics and contractors for long-lasting rust protection.
- • **Built for Harsh Conditions:** Seals out moisture, salt, and oxidation to protect metal in marine, automotive, and industrial environments.

## Overview

Corroseal Rust Converter & Metal Primer is a professional-grade, water-based solution that chemically transforms rusted metal into a durable, paint-ready surface in one easy step. Covering up to 250 sq.ft. per gallon, it creates a tough, black anti-rust seal that prevents future corrosion. Ideal for automotive, marine, industrial, and household metal surfaces, it applies easily with brush, roller, or spray and cleans up with soap and water. Trusted by professionals and DIY enthusiasts alike, Corroseal offers reliable, long-lasting protection made in the USA.

## Description

Take on rust the professional way with Corroseal Rust Converter & Metal Primer — the trusted, Made-in-USA solution that transforms rusted metal into a durable, paint-ready surface in just one step. Corroseal’s water-based, non-flammable formula combines a rust reformer, corrosion inhibitor, and primer in one powerful product. It chemically converts existing oxidation into a hard, black protective coating that stops corrosion, seals the surface, and prevents future rust.Designed for serious results in automotive, industrial, marine, and DIY household maintenance, Corroseal works anywhere metal is exposed to weather, salt, or moisture. Use it to restore truck frames, trailers, car undercarriages, diamond plate, railings, tractors, farm equipment, storage tanks, ramps, fences, outdoor furniture and more. Whether you’re maintaining heavy-duty machinery or protecting your boat, this anti-rust coating delivers professional-grade durability you can trust.Application is simple—just brush, roll, or spray. Corroseal goes on milky white and dries to a black finish that can serve as your primer undercoating. Each gallon covers 200–250 sq. ft. and works with both water-based and oil-based top coat paints.Built for those who take pride in their work, Corroseal is the proven rust treatment that protects your investment for years to come.

Review: Excellent product - This product really works. Easy to apply, turns rust to a black hard surface, ready for paint. I used rustoleum.
Review: Anyone can apply this, Remove flaking rust, clean, dry and apply. Don't forget your undercarriage. - So Far, Very Impressed !! Pick up a screwdriver or paint scraper, wire brush, foam brush, small empty container and neoprene gloves as it's sticky if you get it on you. Pour a little out into a small container (a little goes a long way) and apply to the rusted area. DO NOT POUR UNUSED MATERIAL BACK INTO THE NEW CONTAINER, It will contaminate the jug. I used a product in the late 80's or early 90's on my tailgate on a Ford Ranger that started to rust. It had a different name but it also went on like milk, then turned Black. I've purchased other converters since then that seemed "watered down" and didn't work nearly as effective. I assumed it had something to do with environmental or health concerns as to why I couldn't find it. It was of a different name but this is the same stuff. Worked wonders then, after two coats. It's not passed the test of time yet however, I have used it on my trailer and spots under my truck. This is environmentally friendly, non-toxic, non-corrosive, applies easily. I have nothing bad to say about it so far. Make sure you get all the loose rust off but NOT down to bare metal. It needs a little rust to stick. I had some drip onto the paint on my trailer, no big deal but it did "alter" the color of the paint. On bare metal, it seems to leave a film coating that comes off with my finger nail but over rust, you would have to sand it off. Very glad I found this rust converter again, It works GREAT. I see so many vehicles with rust destroying their cars in Pennsylvania snow/salt state. I can't believe drivers are unaware of this solution, after all, a smaller black patch may not look the best but a larger patch of rust looks much worse and that's where your small rust spot is headed. This may not be a "Professional" repair but it's also not at a "Professional repair cost". Sure, $53 is a lot of money but this stuff works and very easy to apply and over-all, its much less expensive to apply this than to ignore your rust spot. So easy anyone can do this and a gallon goes a long way. Even if you only did nothing to the rust and just applied it over the rust you would be much farther ahead. But if you do that, you'd have to wait until more of the rust flaked off (because it will if you don't first remove the flaking) but apply a little more over where it flaked off and your good to go. Also, if there are "paint bubbles" where rust is developing under the paint, remove the bubble, you will see rust under there. Apply Corroseal. I would highly recommend you get in there with a screwdriver without much pressure and remove the loose stuff and maybe go over it with a wire brush, clean the dust off, dry the area and apply, that's it and your resale value will show the difference as a small patch of this is better than a large patch of rust...You can also paint over this if you want, but you will still the area because it will not have the smooth texture of new paint, it will just hide it a little. Don't forget your undercarriage. If you live in a snow belt state and you have no rust yet, Wash the underside once a week but eventually a stone will break the paint seal and rust will start.

## Features

- Quickly Converts & Primes Metal in One Step - Corroseal transforms rusted metal surfaces into a durable, paint-ready finish—no grinding or sanding required
- Stops Rust & Prevents Future Corrosion - Creates a tough, anti-rust seal that blocks moisture, salt, and oxidation from returning
- Easy to Brush, Roll, or Spray on – Goes on milky white and dries solid black, low odor, non-flammable, and cleans up easily with soap and water; covers 200–250 sq. ft. per gallon
- Built for Automotive, Marine, Industrial & General Household Use - Protects truck beds, car parts, trailers, farm equipment, machinery and more from salt, weather and wear
- Made for Pros Who Demand Results - Trusted by mechanics, contractors, and DIYers for reliable, long-lasting rust protection; proudly made in the USA

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B001CRETZW |
| Best Sellers Rank | #5,315 in Automotive ( See Top 100 in Automotive ) #17 in Care Corrosion & Rust Inhibitors #354 in Oils & Fluids |
| Brand | Corroseal |
| Color | Black |
| Color Code | #000000 |
| Coverage | 250 |
| Date First Available | June 14, 2014 |
| Dry Time In Hours | 6 |
| Finish Type | Satin |
| Full Cure Time | 24 Hours |
| Global Trade Identification Number | 00704399515045 |
| Included Components | (1) Gal Rust Converter |
| Is Discontinued By Manufacturer | No |
| Is Waterproof | True |
| Item Form | Liquid |
| Item Volume | 1 Gallons |
| Item Weight | 9.8 pounds |
| Item model number | 82331 |
| Manufacturer | Rodda Paint Company |
| Package Information | Pail |
| Paint Type | Watercolor |
| Product Dimensions | 12.3 x 5.7 x 5.6 inches |
| Size | 128 Fl Oz (Pack of 1) |
| Special Feature | Non Toxic |
| Specific Uses For Product | Interior/Exterior |
| Surface Recommendation | Metal |
| UPC | 704399515045 |
| Unit Count | 127.9999 Fluid Ounces |
| Water Resistance Level | Not Water Resistant |

## Product Details

- **Brand:** Corroseal
- **Color:** Black
- **Finish Type:** Satin
- **Item Volume:** 1 Gallons
- **Paint Type:** Watercolor
- **Size:** 128 Fl Oz (Pack of 1)
- **Special Feature:** Non Toxic
- **Specific Uses For Product:** Interior/Exterior
- **Surface Recommendation:** Metal
- **Unit Count:** 127.9999 Fluid Ounces

## Images

![Corroseal Rust Converter & Metal Primer – Stops & Prevents Corrosion on Metal, Pro-Grade Rust Inhibitor for Cars, Trucks, Trailers, Marine & Industrial Equipment, 1 Gallon - Image 1](https://m.media-amazon.com/images/I/61F5-0Fz-CL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: I have a large storage building roof to coat. Can I use a garden sprayer?**
A: As a Ablebody Seaman (Unlimited, Any Waters) and US NAVY VET. I've probably busted more rust than 99.9% of anyone hear. 
While working on the TW Nelson (Mobile oil's Survey Vessel) we helped develop this stuff. Also aboard Supertankers for several oil
Company's we got to try several different Brands of rust converter/reformer.. We brushed it. rolled it. sprayed it ( w/ air gun pick-up) and they all worked better than all previous methods.. and there were a bunch!!! In my opinion Corroseal was the Best of all!!  I still buy it in quart  & gallon sizes (when required as it goes a long way) DO NOT LET ANY OF THESE FREEZE!!! WATER BASED & WILL TURN INTO A ROCK. Talk about wasted $$$? 
Don't waste time & money on Rattle Cans as caps k-rap-out way before product does! U want to spray a large area? use air-sprayer w/ large orifice, more thin coats better than 1 thick. let dry. Just Bust off any Scale &  Leave the rust. wash down, let dry then get after it!
Just give up on acid & paste & all that k-rap. (I took more accidental showers in Ospho than I care to remember, before the new stuff) 
Wan-kers Away. 
Old Salty

**Q: how long before rust comes back if not painted right away?**
A: You don't necessarily need to paint over it. The rust doesn't comeback if you use Corroseal as directed. It seals the metal.

**Q: how long before rust comes back if not painted right away?**
A: Well, I bought it to touch up my deck chairs. The weather got cold and I have not had a chance to repaint them. I will do so in the spring. So that application is uncertain at present. However, since I had so much... My dishwasher racks had exposed metal where the rubber coating had broken down. I applied this stuff to those exposed areas, probably 2-3 months ago. I have not repainted or otherwise coated those areas. In the meantime, I have used the dishwasher multiple times (with that strong detergent!), and none of the areas I applied this stuff to has 1) lost its black color which was the result of the application, nor 2) begun to rust again. So, the coating seems very durable, even in the face of the adverse conditions in the dishwasher (water, heat, chemicals). YMMV

**Q: If i brush down to bare metal with no rust remaining, would i be better off with a different primer? (other than cost that is. i already bought it.)**
A: Corroseal needs the rust to bond to. If you're  at bare metal an epoxy primer would be best. Make sure you use a solvent to clean the surface to remove any dirt or oils that may have come from your hands. I've had great success with Corroseal on light to heavy rust.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Excellent product
*by D***R on November 21, 2025*

This product really works. Easy to apply, turns rust to a black hard surface, ready for paint. I used rustoleum.

### ⭐⭐⭐⭐⭐ Anyone can apply this, Remove flaking rust, clean, dry and apply. Don't forget your undercarriage.
*by E***X on May 8, 2018*

So Far, Very Impressed !! Pick up a screwdriver or paint scraper, wire brush, foam brush, small empty container and neoprene gloves as it's sticky if you get it on you. Pour a little out into a small container (a little goes a long way) and apply to the rusted area. DO NOT POUR UNUSED MATERIAL BACK INTO THE NEW CONTAINER, It will contaminate the jug. I used a product in the late 80's or early 90's on my tailgate on a Ford Ranger that started to rust. It had a different name but it also went on like milk, then turned Black. I've purchased other converters since then that seemed "watered down" and didn't work nearly as effective. I assumed it had something to do with environmental or health concerns as to why I couldn't find it. It was of a different name but this is the same stuff. Worked wonders then, after two coats. It's not passed the test of time yet however, I have used it on my trailer and spots under my truck. This is environmentally friendly, non-toxic, non-corrosive, applies easily. I have nothing bad to say about it so far. Make sure you get all the loose rust off but NOT down to bare metal. It needs a little rust to stick. I had some drip onto the paint on my trailer, no big deal but it did "alter" the color of the paint. On bare metal, it seems to leave a film coating that comes off with my finger nail but over rust, you would have to sand it off. Very glad I found this rust converter again, It works GREAT. I see so many vehicles with rust destroying their cars in Pennsylvania snow/salt state. I can't believe drivers are unaware of this solution, after all, a smaller black patch may not look the best but a larger patch of rust looks much worse and that's where your small rust spot is headed. This may not be a "Professional" repair but it's also not at a "Professional repair cost". Sure, $53 is a lot of money but this stuff works and very easy to apply and over-all, its much less expensive to apply this than to ignore your rust spot. So easy anyone can do this and a gallon goes a long way. Even if you only did nothing to the rust and just applied it over the rust you would be much farther ahead. But if you do that, you'd have to wait until more of the rust flaked off (because it will if you don't first remove the flaking) but apply a little more over where it flaked off and your good to go. Also, if there are "paint bubbles" where rust is developing under the paint, remove the bubble, you will see rust under there. Apply Corroseal. I would highly recommend you get in there with a screwdriver without much pressure and remove the loose stuff and maybe go over it with a wire brush, clean the dust off, dry the area and apply, that's it and your resale value will show the difference as a small patch of this is better than a large patch of rust...You can also paint over this if you want, but you will still the area because it will not have the smooth texture of new paint, it will just hide it a little. Don't forget your undercarriage. If you live in a snow belt state and you have no rust yet, Wash the underside once a week but eventually a stone will break the paint seal and rust will start.

### ⭐⭐⭐⭐⭐ Great stuff; easy to use. Looks great.
*by S***1 on June 28, 2016*

When I read other reivews and it said, a little goes a long way - I ordered a gallon anyway. They were right - a little does go a long way. I used wire brushes and even a wire brush on my drill to remove the loose rust off an iron pole in my basement - holding up the center of the house. I figured the $50 I spent for a gallon of this was a good deal as opposed to waiting and having a contractor come in and replace a rusted pole, not to mention probable damage to the house. This stuff is great. After I washed and cleaned and dried the post, I scraped off the loose rust - then I put 1/4 cup of this in the bottom of a plastic bottle I had cut the top off of - leaving about 3" sides. Perfect for using with a foam brush to apply the Corroseal. I applied it 3 times as I worked on the pole - applying each application before the previous application was dry. Worked beautifully - and I have a black band around the post and it looks great. I have two more poles to remove the rust and apply the Corroseal to. I will do that this fall after the summer time heat and humidity are gone. I worked up a big sweat and got quite warm doing this in June. But, it needed to be done and I didn't want to wait on this pole. I highly recommend this stuff - oh yes, it will get your hands black if you get it on your hands and don't wash off. Luckily it removes with soap and water if you get it while it is still wet. When it dried I used finger nail polish remover and also a LOT of abrasive scrubbing to remove it from my hands as it had dried by the time I noticed it.

## Frequently Bought Together

- Water-Based Rust Converter Metal Primer, Rust Converter - 1 Gallon
- Forney 72729 Wire Cup Brush, Coarse Crimped with 1/4-Inch Hex Shank, 2-Inch-by-.012-Inch, Silver

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*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-02-23*