---
product_id: 50487136
title: "Waxoyl Car Underseal and Rust Protection. The Original Rustproofing for Cars, Rust Inhibitor and Rust Converter for Classic Car Care. Waxoyl Clear 5L Refill Can"
brand: "hammerite"
price: "$234.75"
currency: USD
in_stock: true
category: "Hammerite"
url: https://www.desertcart.us/products/50487136-waxoyl-car-underseal-and-rust-protection-the-original-rustproofing-cars
store_origin: US
region: United States of America
---

# kills old rust & prevents new weatherproof flexible barrier 5L premium rust protection Waxoyl Car Underseal and Rust Protection. The Original Rustproofing for Cars, Rust Inhibitor and Rust Converter for Classic Car Care. Waxoyl Clear 5L Refill Can

**Brand:** hammerite
**Price:** $234.75
**Availability:** ✅ In Stock

## Summary

> 🛠️ Protect your ride like a pro—because rust waits for no one!

## Quick Answers

- **What is this?** Waxoyl Car Underseal and Rust Protection. The Original Rustproofing for Cars, Rust Inhibitor and Rust Converter for Classic Car Care. Waxoyl Clear 5L Refill Can by hammerite
- **How much does it cost?** $234.75 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/50487136-waxoyl-car-underseal-and-rust-protection-the-original-rustproofing-cars)

## 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

- • **Long-Term Savings:** Protects your vehicle’s underside and metal parts, reducing costly repairs and preserving value.
- • **5-Litre Refill Power:** Generous volume for multiple applications—perfect for classic cars and heavy-duty maintenance.
- • **Trusted Classic Care:** The original rustproofing formula recommended by professionals and enthusiasts alike.
- • **Ultimate Rust Defense:** Kills existing rust and forms a flexible, weatherproof shield that lasts through rain and wear.
- • **Versatile Application:** Ideal for doors, panels, chassis, and any water-prone metal surfaces to keep corrosion at bay.

## Overview

Hammerite Waxoyl is a premium 5-litre clear underseal and rust protection product designed to kill existing rust and prevent new corrosion by forming a durable, flexible, and weatherproof barrier. Trusted by classic car owners and professionals, it’s ideal for treating vulnerable metal areas prone to moisture, ensuring long-lasting protection and easier maintenance.

## Description

Hammerite Waxoyl Car Underseal and Rust Protection. The Original Rustproofing for Cars, Rust Inhibitor and Rust Converter for Classic Car Care. Waxoyl Clear 5L Refill Can : desertcart.co.uk: Automotive

## Features

- Causes damage to organs through prolonged or repeated exposure.
- Flammable liquid and vapour.
- May cause drowsiness or dizziness.
- Toxic to aquatic life with long lasting effects.
- Rust Treatment Refill - Clear - 5 Litre, Kills old rust and prevents new rust from forming Forms a flexible, weatherproof skin that doesn't crack, dry out or wash off in the rain Apply it to the insides of doors, panels, box sections, behind sills and chassis and anywhere that water is likely to collect
- Premium Product

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B001GU4DFQ |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 5,739 in Automotive ( See Top 100 in Automotive ) 63 in Rust Converters & Rust Removers |
| Colour | Refill Can |
| Customer Reviews | 4.6 4.6 out of 5 stars (391) |
| Date First Available | 1 May 2007 |
| Delivery information | We cannot deliver certain products outside mainland UK ( Details ). We will only be able to confirm if this product can be delivered to your chosen address when you enter your delivery address at checkout. |
| Included Components | Refill Can |
| Item Package Quantity | 1 |
| Item Weight | 4.39 kg |
| Item model number | 5092941 |
| Manufacturer | Hammerite Products ICI Ltd. |
| Part Number | 5092941 |
| Product Dimensions | 17.6 x 11 x 30.6 cm; 4.39 kg |
| Shape | Round |
| Size | 5 Litre |

## Images

![Waxoyl Car Underseal and Rust Protection. The Original Rustproofing for Cars, Rust Inhibitor and Rust Converter for Classic Car Care. Waxoyl Clear 5L Refill Can - Image 1](https://m.media-amazon.com/images/I/61OeIbEuMZL.jpg)

## Available Options

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

## Questions & Answers

**Q: Do I have to lightly sand/do anything to the small rust spots before applying? I’m not sure what ‘kills old rust’ means and how it affects paintwork.**
A: No, you don’t have to sand it, just brush off loose dirt. A layer of dust helps key it to the metal. It doesn’t harm the paint, but does tend to creep up the face of the paintwork, so needs wiping off occasionally. The creeping is good as it gets into all the nooks and crannies.

**Q: Hi. i'd like to use this on an old prefab garage roof frame(where appearance dosen't matter) it,s vv badly rusted, would it work. thanks**
A: Hi Silverback....The inside surfaces of my LandRover doors were quite rusty; clearing as much of the loose matter and debris certainly helps with the adhesion of the Waxoyl and one year on it appears to be doing the job.  I would imagine a similar approach to your roof would be advisable.  Regards.  John Marino.

**Q: Would this be suitable for painting a raw steel bike frame ? How is it best applied and it will it leave a smooth clear coat finish? Thanks**
A: Waxoyl is not a transparent paint and would not be suitable for application to a bicycle frame. It has a gooey consistancy similar to runny jam or thick cream when being applied and stays flexible for long periods. It is superb for protecting steel items subjected to adverse, wet conditions such as motor car underside mechanical components. I use a hand spray gun or paint brush for application. Not suitable for human contact after application; it becomes messy if handled and would not be kind to clothing. Try a high quality enamel paint over a good metal primer.

**Q: Would it be advisable to spray the underside of my caravan which is thick ply with fixed metal attachments like corner steadies, motor mover drive etc**
A: Hi,   metal ,yes.   Even rust,    Ply needs to breath.

## Frequently Bought Together

- Hammerite Waxoyl Car Underseal and Rust Protection. The Original Rustproofing for Cars, Rust Inhibitor and Rust Converter for Classic Car Care. Waxoyl Clear 5L Refill Can
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- Hammerite HAM6710105 5L Waxoyl Black Refill Can

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-05-20*