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.

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.

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

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.

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

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.

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

Hi, metal ,yes. Even rust, Ply needs to breath.

Waxoyl | Desertcart Austria

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Description

🛠️ Keep your ride timeless with the original rustproofing legend!

INVISIBLE PROTECTION - Clear formula ideal for preserving lighter paint finishes without altering appearance.
ULTIMATE RUST DEFENSE - Kills old rust and prevents new rust formation for lasting vehicle care.
DEEP PENETRATION TECHNOLOGY - Flows into hidden cavities, doors, and chassis to block moisture at the source.
FLEXIBLE WEATHERPROOF BARRIER - Forms a soft, crack-resistant seal that withstands rain and wear.
TRUSTED CLASSIC CAR ESSENTIAL - Premium, original rustproofing trusted by vintage and 4x4 enthusiasts worldwide.

Hammerite Waxoyl 5L Clear Underseal is a premium rust inhibitor and converter designed for classic and modern vehicles. Its unique wax-oil formula penetrates deep into metal crevices, forming a flexible, waterproof barrier that prevents rust from returning. Ideal for lighter paint finishes, this refill can extends vehicle life by protecting vulnerable areas like doors, chassis, and box sections with a durable, invisible seal.

Specifications

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

Reviews

P**Y

Great buy

Fast delivery, great product, good price, well pleased with purchase

12.04.2026

N**N

does the job

excellent product

24.04.2026

P**Y

Great product

Great product a bit messy to use.

19.05.2026

M**B

Good stuff

Good stuff but needs to be heated up to spray on

27.08.2025

M**.

Prevents rust

To anyone unfamiliar with this stuff, it's like gloopy wax that when you put it on metal with a brush or thin and spray it, eventually it goes hard like candle wax and seals the metal preventing corrosion. The 5L tins are cheaper per volume than smaller sizes and its useful for protecting metal things if you live in a rust inducing environment like damp UK and/or near the sea. There are similar products around that work on grease/oil coating. Steam cleaning will remove waxoyl should you ever want it gone.

30.09.2024

B**T

Car nut

Used this many times,good value

31.03.2026

B**S

Great rust proofing and corrosion protection.

Great product for rust proofing and protection of metal components and car/machinery parts and considered good value.

10.06.2025

A**R

Long lasting value for money.

Does what it says on the tin. Needs to be used in very warm weather when it it's self is warm and will spray or brush on easily. Avoid contact with interior materials and seat belt webbing.

8.04.2025

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€ 116.40

Duties & taxes included

In stock

Sold byAmazon AustriaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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TrustScore 4.5 | 7,300+ reviews

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Customer service was outstanding when I had questions about the product.

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