---
product_id: 10629242
title: "5092820 Kurust, 250 ml, Blue"
brand: "hammerite"
price: "€ 38.81"
currency: EUR
in_stock: true
reviews_count: 12
category: "Hammerite"
url: https://www.desertcart.it/products/10629242-5092820-kurust-250-ml-blue
store_origin: IT
region: Italy
---

# Compact 250ml bottle Rust conversion in 15 min Apply any topcoat after 3 hrs 5092820 Kurust, 250 ml, Blue

**Brand:** hammerite
**Price:** € 38.81
**Availability:** ✅ In Stock

## Summary

> 🔧 Turn rust into trust—fast, flawless, and fuss-free!

## Quick Answers

- **What is this?** 5092820 Kurust, 250 ml, Blue by hammerite
- **How much does it cost?** € 38.81 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.it](https://www.desertcart.it/products/10629242-5092820-kurust-250-ml-blue)

## Best For

- hammerite enthusiasts

## Why This Product

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

## Key Features

- • **All-in-One Solution:** No primer or undercoat needed—just brush on and watch the magic happen.
- • **Fast Rust Transformation:** Converts rust to a stable surface in just 15 minutes—no waiting, no hassle.
- • **Weather-Resistant Protection:** Formulated to shield metal surfaces from rain, humidity, and future rust.
- • **Perfect for Precision Repairs:** Ideal for small rust patches, saving you costly panel replacements.
- • **Seamless Topcoat Compatibility:** Apply virtually any paint or finish after only 3 hours for a flawless restoration.

## Overview

Hammerite Kurust is a powerful rust converter in a convenient 250ml bottle that transforms rusted metal surfaces into a sound base within 15 minutes. Designed for small rust patches, it allows any topcoat to be applied after just 3 hours without the need for primers, providing durable protection against weather-induced corrosion.

## Description

There is no worse feeling than seeing a rough, orange surface on your car that was once graced by a coat of paint. With British weather guaranteeing rain during all four seasons of the year, your car may already be showing the signs of rusted bodywork. However, rather than go through the costly inconvenience of replacing the panel, Hammerite can provide you a solution.Hammerite Kurust is ideal for small patches of rust. It converts rusty metal to a clean surface in 15 minutes, allowing virtually any topcoat to be applied in 3 hours. Simply apply with a brush and watch the Kurust formula turn blue/black as it reacts with the rust. No undercoat or primer is required. Comes in a 250ml bottle.The Hammerite range is designed to protect metalwork from humidity, rain and rust.

Review: (Used)Van conversion must have - This little bottle treated sooooo much rust on my van conversion. And I’m pleased with the results!
Review: Nice finish and ready for paint. - Clean with a wire brush. Sand the high spots first even if you're going to paint. Apply product and then it’s cured and sealed. If you try to sand after, you have to seal again. It makes things black and stains things black including your skin.

## Features

- Hammerite Kurust
- Converts rust into a sound surface in just 15 minutes
- Ideal for small patches of rust
- Apply virtually any topcoat after just 3 hours
- Comes in a 250ml bottle

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B004Z4UMUA |
| Best Sellers Rank | #261,348 in Automotive ( See Top 100 in Automotive ) #3,108 in Exterior Care Products |
| Brand | Hammerite |
| Color | Blue |
| Color Code | #0000FF |
| Coverage | [LITTLE] |
| Customer Reviews | 4.7 4.7 out of 5 stars (5,036) |
| Date First Available | March 1, 2012 |
| Dry Time In Hours | 3 |
| Finish Type | Satin |
| Full Cure Time | 3 Hours |
| Global Trade Identification Number | 05011867002453 |
| Included Components | Brush |
| Indoor/Outdoor Usage | Outdoor |
| Is Discontinued By Manufacturer | No |
| Is Waterproof | False |
| Item Form | Liquid |
| Item Volume | 250 Milliliters |
| Item Weight | 9.9 ounces |
| Item model number | 5092820 |
| Manufacturer | Hammerite |
| Manufacturer Part Number | 5092820 |
| Model Name | 5092820 |
| Package Information | Can |
| Paint Type | Watercolor |
| Product Dimensions | 1.97 x 1.97 x 3.94 inches |
| Size | 8.45 Fl Oz (Pack of 1) |
| Special Feature | Rust Converting |
| Special Features | Rust Converting |
| Specific Uses For Product | Restoring and protecting metal surfaces prone to rusting or weathering |
| Surface Recommendation | Metal |
| Unit Count | 8.4535 Fluid Ounces |
| Water Resistance Level | Water Repellent |

## Product Details

- **Brand:** Hammerite
- **Color:** Blue
- **Finish Type:** Satin
- **Item Volume:** 250 Milliliters
- **Paint Type:** Watercolor
- **Size:** 8.45 Fl Oz (Pack of 1)
- **Special Feature:** Rust Converting
- **Specific Uses For Product:** Restoring and protecting metal surfaces prone to rusting or weathering
- **Surface Recommendation:** Metal
- **Unit Count:** 8.4535 Fluid Ounces

## Images

![5092820 Kurust, 250 ml, Blue - Image 1](https://m.media-amazon.com/images/I/71kbPNQV5nL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ (Used)Van conversion must have
*by R***A on September 29, 2025*

This little bottle treated sooooo much rust on my van conversion. And I’m pleased with the results!

### ⭐⭐⭐⭐⭐ Nice finish and ready for paint.
*by S***O on August 16, 2025*

Clean with a wire brush. Sand the high spots first even if you're going to paint. Apply product and then it’s cured and sealed. If you try to sand after, you have to seal again. It makes things black and stains things black including your skin.

### ⭐⭐⭐⭐ You can actually see it working.
*by V***R on January 11, 2025*

This "space" is very confusing. I spent months on my project. What is important is to understand the differences between these chemical reactions. There are products that "dissolve" rust via chemical reaction. There are rust "converters", like this, that actually convert the rust into something stable. There are others that "encapsulate" rust. But in this case, you can actually see what it is doing. It goes on a purple-ish, milky color. It is thinner than the Rustoleum liquid version (not to be confused with the spray version which is a totally different product). You can "push" it into pits with a brush going "cross-grain". It will turn a dark, purple-ish black if it converts rust. If there is no rust to convert or there is a galvanized finish that is protecting the metal, it will stay a very white, milky, purple-ish film. However, Hammerite recommends that you grind that off before painting over it. You can see through the film even once dried unless it turns totally black. Often, I would see a copper-colored layer underneath. I am still not sure what that is. But what I found after months of testing is that even after using phosphoric acid-based dissolvers, vinegar and months of grinding to a shiny finish, this would still convert rust. I can't explain it. I ran out of time and put this stuff on some of the worst areas just before winter started to set in and to my amazement, those areas turn dark black - suggesting that there was still unseen rust. So this whole issue dealing with rust (on a van bed like my project) is totally bizarre. I can't explain it. But if you want to convert the rust to something stable, this is probably your best bet. Don't be fooled - a little bottle goes a long, long way.

## Frequently Bought Together

- Hammerite 5092820 Kurust, 250 ml, Blue
- Hammerite 5084857 Direct to Rust Metal Paint - Smooth White Finish 250ML
- Hammerite Primer - Red Oxide. Metal Primer for Garden Furniture, Radiator and Fence Paint. Rust Inhibitor and Rust Treatment for Metal, Interior and Exterior Use - 500ml

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*Product available on Desertcart Italy*
*Store origin: IT*
*Last updated: 2026-02-27*