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

Omoda 5

Omoda 5

RRP £24,040Avg. savings £1,539 off RRP*Used from £18,490
Vauxhall Corsa

Vauxhall Corsa

RRP £19,705Avg. savings £6,173 off RRP*Used from £9,199
MG MG4

MG MG4

RRP £27,005Avg. savings £3,637 off RRP*Used from £10,895
Dacia Spring

Dacia Spring

RRP £11,990Avg. savings £586 off RRP*Used from £9,495
* Average savings are calculated daily based on the best dealer prices on Auto Express vs manufacturer RRP
Skip advert
Advertisement

Most Popular

New Ford Focus: full details on the iconic name’s SUV return
Ford Focus exclusive image

New Ford Focus: full details on the iconic name’s SUV return

An all-new Ford Focus is set to make a comeback and our exclusive image previews how it could look
News
10 Aug 2026
Long-term test: Volvo EX90 Ultra Twin Motor Performance
Volvo EX90 Ultra Twin Motor Performance - family header

Long-term test: Volvo EX90 Ultra Twin Motor Performance

First report: Range-topping version of flagship SUV joins our fleet and is fast becoming a family favourite
Long-term tests
9 Aug 2026
Car Deal of the Day: Baby Skoda Epiq arrives with tiny sub-£230-a-month price
Skoda Epiq - white

Car Deal of the Day: Baby Skoda Epiq arrives with tiny sub-£230-a-month price

Skoda Epiq was only revealed in May but already great leasing offers are here. It’s our Deal of the Day for 11 August.
News
11 Aug 2026