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Best metal paint UK for the job in front of you

Updated: 23 October 2026

You have seven amazon.co.uk listings that look close on stars, and you need one tin for a gate, a small panel, or a chip. Best metal paint UK, on this page, means the listing that fits that job, with a reason to skip the others. The [metal paint comparison](/hub/paints-and-varnishes/metal-paint) is the full table. Prices below are the saved snapshot from 21 October 2026. Peter F. checked them against the listings. We did not paint a gate in a lab. A qualifying purchase through our links can earn a commission at no extra cost to you. A later look saw one 750 ml black tin below the saved £22, so buy on the page you open.

You have seven amazon.co.uk listings that look close on stars, and you need one tin for a gate, a small panel, or a chip.

Our top picks

Hammerite Hammerite 5158235 smooth black

Best overall

Hammerite Hammerite 5158235 smooth black
9.4/10about £20.43
View offer
Hammerite Hammerite smooth black 250 ml

Best value

Hammerite Hammerite smooth black 250 ml
9.2/10about £9.97
View offer
Paintsmiths Paintsmiths gloss black 30 ml

Alternative

Paintsmiths Paintsmiths gloss black 30 ml
8.4/10about £8.79
View offer
On this page
  1. 1.What best can mean here
  2. 2.A gate or a run of railings
  3. 3.A small panel or a bistro set
  4. 4.A chip, not a gate

What best can mean here

The top pick is the highest amazon.co.uk rating among products with at least 500 reviews. Two large black tins share 4.7. The one with more reviews takes the badge: Hammerite part 5158235, 4.7 from 7,075, at £20.43. Part 5092966 has 1,454 reviews at £22.00. They tie on our score. The badge is not a harder film. Best value is the lowest saved shelf price among direct-to-rust tins of at least 250 ml: smooth black 250 ml at £9.97, 4.6 from 20,433. White is £9.99 and gold is £10.51. The saved texts repeat red, blue, silver and gold. Use a 30 ml bottle for a chip, not for a gate.

A gate or a run of railings

For a rusty steel gate or a run of railings, open a large black tin, not a 250 ml pot and not a 30 ml bottle. The top pick is Hammerite part 5158235 at £20.43, 4.7 from 7,075 reviews, with UK texts about gates, railings and garage doors after preparation. The title says 750 ml and the size field says 1 l, and one review says the advertised brush was missing. Check the tin. Part 5092966 is the one to prefer if you want reviews that open on this 750 ml black rather than a mixed colour pool. It is £22.00. Dry time is listed as 24 hours and full cure as 4 hours. No brush is in the included-components field. Area and the bottom bar are on metal paint for gates and railings.
Hammerite Hammerite 5158235 smooth black

Testsieger

Hammerite Hammerite 5158235 smooth black
9.4/10about £20.43
View offer

A small panel or a bistro set

A bistro set, a drain cover or a short rail is the 250 ml job, once loose rust is off. Smooth black 250 ml at £9.97 has a brush listed, an up-to-8-years bullet and a glossy finish. Coverage on this ASIN is 2.5–3 m² per litre, tighter than the maker’s about 5 m² per litre, so do not plan a gate from the pot. The flash point of 32°C is not a radiator rating. Reviews talk about a wire brush, then a film that stayed on garden metal, and paint that skins on the brush in warm weather. White at £9.99 is the same enamel when the metal should be white. Gold at £10.51 prints 5 m² per litre, and one review called the dry film matt and wanted two coats. Skip gold unless you have checked the shade in daylight, and skip every 250 ml tin for both sides of a bare gate.

A chip, not a gate

The gloss black Paintsmiths bottle is the chip object when you want a small gloss mark and you will not trust the cap brush. It is 30 ml at £8.79, 4.2 from 229 reviews. UK texts mention radiator chips, appliances, a uPVC door and a letterbox surround. Several say the cap brush leaves a Tipp-Ex-like patch, so they used a separate small brush. The reviews also describe white and grey. Coverage is Partial. No heat limit is printed. Satin white is the same £8.79, 4.1 from 55 reviews, water-based, with low VOC named and no grams-per-litre figure. A kettle scratch grew past the mark, and one review title says it washes off. The waterproof flag is false while the level says Waterproof. Two of 23 UK texts describe black paint on this white listing. Skip both bottles for a gate. Colour match on a radiator chip is on radiator paint versus metal paint.

Common questions

Which saved tin is the one to open for a rusty steel gate?
The top pick for a rusty steel gate in this set is Hammerite part 5158235 at £20.43, 4.7 from 7,075 reviews. The title says 750 ml and other fields say 1 l, so confirm the fill. Part 5092966 at £22.00 is the alternative when you want reviews that start on a stated 750 ml tin.
Why do two black 750 ml Hammerite listings both show 4.7?
They are two amazon.co.uk listings of smooth black direct-to-rust enamel, not two lab results. One has 7,075 reviews at £20.43. The other has 1,454 reviews at £22.00. The scores tie, and the badge follows the higher review count. Both are thick paints that skin in warm weather.
Is the 20,000-review score about gold?
The gold 250 ml listing shows 4.6 from 20,433, the same line as smooth black 250 ml. Only some saved lines are about gold. White is 4.6 from 20,430, with the same shared texts. Treat the number as a parent count, not as 20,000 people who checked the gold shade.
Is the £8.79 bottle a cheaper Hammerite?
No. Both £8.79 listings are Paintsmiths 30 ml touch-up bottles, not Hammerite Direct to Rust. Gloss black is 4.2 from 229 reviews. Satin white is 4.1 from 55. Per litre they cost more than a 250 ml tin at about £10. They suit a chip, not a gate or a stated heat limit.
What does best mean if there is no lab test?
It means the best fit in this amazon.co.uk set: highest rating with at least 500 reviews for the top pick, and the lowest direct-to-rust price at 250 ml or more for best value. It is not a seafront life, a BS EN ISO 12944 system, or a coating we weathered. The 8-year line stays a pack claim.

Related pages

Metal paint buying guide

Metal paint

Metal paint for gates: edges, underside and tin size

How to paint rusty metal with direct-to-rust enamel

Radiator paint vs outdoor metal paint on a hot panel

Sources

Public sources from the research digest, last checked on 22 October 2026. Shelf prices and star lines are the stored amazon.co.uk figures. The price band is this set, not a market average. No listing was lab-tested.

  1. Hammerite Direct to Rust metal paint, smooth finish (retrieved 22 October 2026)
  2. Hammerite surface preparation (retrieved 22 October 2026)
  3. Hammerite: how to paint a radiator (retrieved 22 October 2026)
  4. VOC in Paints, Varnishes and Vehicle Refinishing Products Regulations 2012 (retrieved 22 October 2026)
  5. HSE: lead in paint (retrieved 22 October 2026)
  6. HSE: GB CLP hazard labels (retrieved 22 October 2026)
  7. SteelConstruction.info: standard corrosion protection systems (retrieved 22 October 2026)
  8. Rust-Oleum UK radiator paint (retrieved 22 October 2026)