---
product_id: 59537341
title: "Rust Converter & Primer 1 Litre Water based & Non-Hazardous"
brand: "neutrarust 661"
price: "FREE"
currency: GBP
in_stock: false
reviews_count: 11
url: https://www.desertcart.co.uk/products/59537341-rust-converter-and-primer-1-litre-water-based-and-non
store_origin: GB
region: United Kingdom
---

# Water-based & non-hazardous Converts rust to paint-ready surface 10-12 m² coverage per litre Rust Converter & Primer 1 Litre Water based & Non-Hazardous

**Brand:** neutrarust 661
**Price:** FREE
**Availability:** ❌ Out of Stock

## Summary

> 🛠️ Turn rust into resilience—paint-ready perfection in every drop!

## Quick Answers

- **What is this?** Rust Converter & Primer 1 Litre Water based & Non-Hazardous by neutrarust 661
- **How much does it cost?** FREE with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/59537341-rust-converter-and-primer-1-litre-water-based-and-non)

## Best For

- neutrarust 661 enthusiasts

## Why This Product

- Trusted neutrarust 661 brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **UK-Made Quality:** Superior coating consistency crafted locally for professional-grade results.
- • **Salt Spray Shield:** Engineered for harsh environments—perfect for cars, sea vessels, and oil rigs.
- • **Versatile Rust Remedy:** Transforms rust into a sleek black primer, ready for seamless overpainting.
- • **Effortless Application:** Water-based, low viscosity formula glides on smoothly without toxic fumes.
- • **Long-Lasting Protection:** Creates a durable barrier that resists water and air, halting corrosion in its tracks.

## Overview

Neutrarust 1 Litre Rust Converter & Primer is a UK-made, water-based, non-hazardous solution that converts rust into a durable, paint-ready black surface. Offering 10-12 square metres coverage per litre, it protects metal from further corrosion by resisting water and air exposure. Ideal for automotive, marine, and industrial use, it’s easy to apply and compatible with most paints, making it the go-to rust treatment for professionals and enthusiasts alike.

## Description

Product Description The Rust Converter and Primer treatment for many different professional and domestic applications. MOD & NATO Stock Numbered Easy to apply & improves the appearance Manufactured in the UK - THE ORIGINAL Primer compatible with most paints Specially used against salt spray for sea-going vessels and oil rig applications Produces a hard water-insoluble ready to paint surface Classified as a non-hazardous water-based anti-rust treatment for rusted metal surfaces on cars, chassis, boats, oil rigs, sea-going vessels, offshore applications, pipelines & many home applications eg gates, fences. Specially used against salt spray for sea-going vessels and oil rigs. This incredible product provides up to 6 years of protection, is manufactured in the UK and is hailed by many as the Original and Best Rust Converter and has led the way in corrosion control for over 40 years! The strength and durability of Neutrarust 661 is quite simply amazing, but the ease of use is perhaps its greatest asset - with its unique formula, Neutrarust 661 requires minimal surface preparation time. The corroded surface requires minimal preparation yet the adhesive strength is incredible. We recommend 2 to 3 coats to ensure a complete seal ready for painting. It is water-based and safe to use, transport and store, it is easily applied and simply painted onto rust. Formulated to remove moisture and oxygen, the two main components that cause the degenerative process. It also seals the area to prevent further ingress. Clean off any oil, grease, minerals and loose flakes of rust. Brush or roller on to surface. MOD Stock Number: 0473-225 1984 NATO Stock Number: 992251984 The Rust Converter Neutrarust 661 Rust Converter MOD & NATO Stock Numbered. Classified as a non-hazardous water-based rust converter treatment comes in different size bottles Untreated Rust Simple Neutrarust 661 application Neutrarust 661 Neutrarust 661 converts rust into a hard water-insoluble shiny black finish

Review: The best rust treatment preventer. Final colour depends on treatment technique. - I have used various rust remover treatments but always come back to this one. Using it to touch-up areas on a car before painting has always gone very well. It is particularly tolerant of being painted over unlike some other treatments which make paint bubble ! I purchased the 1 litre container because it is more aggressively priced than the 250 ml but have found that I needed a lot less than I thought. It is not like paint, it has a watery, slightly creamy consistency and goes a long way. The only thing that did not go to plan on this job was the final colour. I have always painted over it before but on this occasion decided to treat my very rusty, poorly maintained fire-pit with Neutrarust before putting it away over winter (I am not really bothered if the finish burns off next summer). I used a course wire wool to prepare the surface then applied a coat of Neutrarust 221. This then turned my firepit blue and it ended up a very nice deep black colour with a rusty hue to it. I was very pleased with this finish. I had no intention of using paint over the Neutrarust so used a second coat, the following day, for extra protection. Again it turned blue but the final result is not as good as the first as it is now black with light grey blotches. I have decided to leave it as it is because I imagine it will weather and the colour will develop when the fire-pit is used again but I would only use one coat in future if repeating the task. Despite my experience if it is a treatment for rust you need this is my favourite because it :- 1] is the easiest to apply because it is not too viscous, water soluble, less toxic – it does not hurt if you accidentally get it on your skin; 2] acts as an under coat and tolerates over coating by most paints; 3] after one coat over rust it cures to a black colour which looks like you have painted the item black; 4] stops the progression of the rusting process This is my go to rust treatment and I will buy again.
Review: Metal treatment - Excellent and works as it says

## Features

- Safety data sheet available on request.
- Great Coverage 10 - 12 Square Metres per litre. Made in the UK
- Superior coating consistency providing high quality surface ready for painting
- Easy to apply and resists water and air, protecting against corrosion
- Rust Remedy converts rust into a dark ready to paint suface
- Specially used against salt spray for cars, sea-going vessels and oil rig applications

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0763PBTRD |
| Age Range Description | Adult |
| Best Sellers Rank | 240,860 in Automotive ( See Top 100 in Automotive ) 589 in Rust Converters & Rust Removers |
| Brand | Neutrarust 661 |
| Brand Name | Neutrarust 661 |
| Colour Code | #FFFFFF |
| Container Type | Tin |
| Coverage | 10-12 square metres per litre |
| Customer Reviews | 4.6 out of 5 stars 352 Reviews |
| Dry Time In Hours | 4 |
| Finish Type | Semi-Gloss |
| Finish type | Semi-Gloss |
| Included Components | Brush |
| Indoor Outdoor Usage | Outdoor |
| Is Waterproof | True |
| Item Form | Spray |
| Item Volume | 1 Litres |
| Item volume | 1 Litres |
| Manufacturer | Mallx |
| Model Number | NR-T1559 |
| Paint Type | Oil, Watercolour |
| Part Number | NR-T1559 |
| Size | 1 l (Pack of 1) |
| Special Features | Rust Remedy |
| Special feature | Rust Remedy |
| Specific Uses For Product | Exterior |
| Surface Recommendation | Metal |
| Unit Count | 1000.0 millilitre |
| Unit count | 1000.0 millilitre |
| Water Resistance Level | Water Resistant |

## Product Details

- **Brand:** Neutrarust 661
- **Finish type:** Semi-Gloss
- **Indoor/Outdoor usage:** Outdoor
- **Item volume:** 1 Litres
- **Paint type:** Oil, Watercolour
- **Size:** 1 liter
- **Special feature:** Rust Remedy
- **Specific uses for product:** Exterior
- **Surface recommendation:** Metal
- **Unit count:** 1000.0 millilitre

## Images

![Rust Converter & Primer 1 Litre Water based & Non-Hazardous - Image 1](https://m.media-amazon.com/images/I/51--ZVxRT8L.jpg)
![Rust Converter & Primer 1 Litre Water based & Non-Hazardous - Image 2](https://m.media-amazon.com/images/I/911FZfm5suL.jpg)
![Rust Converter & Primer 1 Litre Water based & Non-Hazardous - Image 3](https://m.media-amazon.com/images/I/71o4ISHGRgL.jpg)
![Rust Converter & Primer 1 Litre Water based & Non-Hazardous - Image 4](https://m.media-amazon.com/images/I/71ogZnJaleL.jpg)
![Rust Converter & Primer 1 Litre Water based & Non-Hazardous - Image 5](https://m.media-amazon.com/images/I/61WjgjGzhlL.jpg)

## Questions & Answers

**Q: Will this treatment work on car chassis which are rusty ?**
A: Please see the instructions from the bottle label. Simple preparation!
Remove loose scale, flaky rust, all paint and dirt with thorough wire brushing. Reduce any high peaks of rust. Remove Acid, Alkali, grease oil and chemicals with detergent water wash then rinse with clean water. Paintwork blistered by rust should be scraped down to hard surface. DO NOT REMOVE all traces of rust. All areas must be adequately covered with Neutrarust 661®

**Q: Does this have a shelf life? Thanks**
A: I can’t be sure regarding shelf life, what I can say that it works well and after eighteen months since I first used it, there is plenty of life left in the remainder and no sign of deterioration. Just keep sealed after use, as it will thicken and dry if left exposed to air indefinitely.

**Q: can this be used for rusty heated towel rails in the bathroom?**
A: I’ve only used this on rusty vehicles but I imagine so. It’s important that you understand that this product will leave a brown coating on the surface it’s painted on. This is very very difficult to remove. I got some on my van’s paintwork and I had to very carefully scratch it off. This coating is to protect the treated area. Apparently it can be painted over but I haven’t got that far yet. 

As far as killing rust goes, it works brilliantly.

**Q: How many square meters will one liter cover, would it do the underneath of a LDV convoy?**
A: Hi. Neutrarust 661 will cover approx12 square metres per litre. And will work on the rust on an LDV

## Customer Reviews

### ⭐⭐⭐⭐⭐ The best rust treatment preventer. Final colour depends on treatment technique.
*by A***E on 16 October 2021*

I have used various rust remover treatments but always come back to this one. Using it to touch-up areas on a car before painting has always gone very well. It is particularly tolerant of being painted over unlike some other treatments which make paint bubble ! I purchased the 1 litre container because it is more aggressively priced than the 250 ml but have found that I needed a lot less than I thought. It is not like paint, it has a watery, slightly creamy consistency and goes a long way. The only thing that did not go to plan on this job was the final colour. I have always painted over it before but on this occasion decided to treat my very rusty, poorly maintained fire-pit with Neutrarust before putting it away over winter (I am not really bothered if the finish burns off next summer). I used a course wire wool to prepare the surface then applied a coat of Neutrarust 221. This then turned my firepit blue and it ended up a very nice deep black colour with a rusty hue to it. I was very pleased with this finish. I had no intention of using paint over the Neutrarust so used a second coat, the following day, for extra protection. Again it turned blue but the final result is not as good as the first as it is now black with light grey blotches. I have decided to leave it as it is because I imagine it will weather and the colour will develop when the fire-pit is used again but I would only use one coat in future if repeating the task. Despite my experience if it is a treatment for rust you need this is my favourite because it :- 1] is the easiest to apply because it is not too viscous, water soluble, less toxic – it does not hurt if you accidentally get it on your skin; 2] acts as an under coat and tolerates over coating by most paints; 3] after one coat over rust it cures to a black colour which looks like you have painted the item black; 4] stops the progression of the rusting process This is my go to rust treatment and I will buy again.

### ⭐⭐⭐⭐⭐ Metal treatment
*by B***Y on 4 January 2026*

Excellent and works as it says

### ⭐⭐⭐⭐ Rust transformation
*by P***L on 6 April 2024*

Wow did not expect these results , it is expensive but boy does work , looked at many products. This looked the best . Try to clean with wire brush first , do not remove underlying rust . This product needs to react with surface rust , just pour into small containers, use artist paint brush and apply. Leave to dry , 24 hours , next day surface has turned black with Some White flecks . But all the rust has disappeared, fantastic .

## Frequently Bought Together

- Neutrarust 661® Rust Converter - The Original Water based & Non-Hazardous. MOD & NATO Approved (1 Litre) 10-12 square metres coverage
- Wire Brushes Drills Set 10 pcs,Brass Coated Wire Brush Wheel, Cup Brush and Tube Brush Kit,10 Sizes Metal Brushes with 1/4 Inch Shank for Cleaning Rust,Removing Paint and Cleaning Wood (Gold)
- Hand Wire Brush Set 4 Pcs with Stainless Steel Brush and Brass Brush,Wire Brush for Cleaning Rust, Paint and Welding Slag (2 big,2 small)

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*Product available on Desertcart United Kingdom*
*Store origin: GB*
*Last updated: 2026-05-26*