Skip advert
Advertisement

Ferosticker fire extinguisher review

The Ferosticker reimagines the fire extinguisher, and we put it to the test to see if it can handle the heat

Ferosticker
Overall Auto Express rating

5.0

While we all worry about picking up a scratch or dent on our precious cars, we probably don’t give a thought to a potentially much more lethal threat – fire. However, according to official figures, around 100,000 cars per year are damaged by flames. Even a small fire can quickly cause a write-off, bumping up insurance premiums and causing heartbreak for classic and custom car owners in particular. 

The Ferosticker is a clever reinvention of the traditional fire extinguisher, which is safer to use and promises to be more effective too. 

Advertisement - Article continues below

Rather than needing anyone to operate it, the Ferosticker attaches to the inside of your bonnet or in any other enclosed place using the adhesive backing, or it can be fixed with screws for extra security. If it’s exposed to a direct flame, or temperatures above 170 degrees, a potassium-based extinguishing agent is released, which prevents the chemical reaction needed for flames. 

We built a test rig to mimic a small engine bay fire, using a barbecue, metal tins and a small pot of petrol surrounded by cotton rags and straw. After 17 seconds, the Ferosticker activated, deploying a cloud of grey smoke accompanied by a fizz. When the fog cleared, the pot of petrol was no longer burning and there was no residue. There was still some smouldering on the rags and straw, but the flames had gone. 

We tried the smallest and cheapest F01, which is claimed to be suitable for spaces up to 0.1 cubic metres. For a car’s engine bay, we’d suggest fitting two  – or the larger, disc-shaped F03.

Buy now from Amazon

Did you know you can sell your car through Auto Express? We’ll help you get a great price and find a great deal on a new car, too.

Skip advert
Advertisement

New & used car deals

MG MG4

MG MG4

RRP £27,005Avg. savings £3,637 off RRP*Used from £10,250
Hyundai Tucson

Hyundai Tucson

RRP £29,840Avg. savings £5,643 off RRP*Used from £11,495
Toyota Yaris Cross
Volkswagen Tiguan

Volkswagen Tiguan

RRP £38,050Avg. savings £3,270 off RRP*Used from £23,791
* Average savings are calculated daily based on the best dealer prices on Auto Express vs manufacturer RRP
Skip advert
Advertisement

Most Popular

New Dodge Charger 2026 review: real US muscle makes some UK sense
Dodge Charger Sixpack - front cornering

New Dodge Charger 2026 review: real US muscle makes some UK sense

The Dodge Charger is both characterful and practical, but it's likely to be a rare sight on UK roads.
Road tests
17 Sep 2026
New Mercedes C-Class Electric gets a bittersweet range boost
Alastair Crooks with the Mercedes C-Class Electric

New Mercedes C-Class Electric gets a bittersweet range boost

New model has launched in Germany but won’t be coming to the UK
News
17 Sep 2026
Car Deal of the Day: A fully-loaded Range Rover Evoque is now just £455 a month
Range Rover Evoque P300e Autobiography - full width front

Car Deal of the Day: A fully-loaded Range Rover Evoque is now just £455 a month

Not often do we feature a Range Rover, but today is an exception. The top-spec Evoque is our Deal of the Day for 18 September.
News
18 Sep 2026