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  • Highly Flammable Sign – DS14
Price: £24.00 – £45.00Price range: £24.00 through £45.00
Rated 4.95 out of 5 based on 22 customer ratings
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SKU: DS14 Category: Dangerous Substances Sign

Highly Flammable Sign - DS14

DS14
  • Description
  • Additional information
  • FAQ’s
  • Delivery Information
  • Specification

Highly Flammable Substance Symbol

The Highly Flammable sign is used to warn of substances or areas where materials can ignite very easily and pose a serious fire risk. 

This sign highlights environments where even small ignition sources may lead to rapid fire spread, requiring heightened caution.

At Foamex Printing Company, we supply Highly Flammable sign options designed to present this warning using recognised layouts and high-contrast printing. 

These signs help communicate elevated fire risk clearly in the workplace and shared environments where highly flammable substances may be present.

Types of Highly Flammable Hazard Signs

Different warning formats may be used to communicate high fire risk depending on the substances and environment involved.

  • Highly Flammable Sign: Used to indicate substances that ignite extremely easily and require strict handling precautions.
  • Highly Flammable Substance Symbol: Uses a recognised hazard pictogram to visually represent a heightened flammability risk.
  • Flammable Liquid Sign: Where highly flammable liquids are present, a flammable liquid sign may also be displayed to highlight this specific hazard.
  • Flammable Warning Signs: These can help communicate fire-related hazards clearly in workplaces, storage areas and other locations where flammable substances are present.
  • Danger Flammable Sign: Provides a clear warning where flammable materials present an increased fire risk and additional caution is required.

In environments where highly flammable substances form part of broader chemical hazards, signage may also appear alongside a sign for dangerous chemicals to support consistent hazard communication.

Materials, Printing, and Finish Options for Highly Flammable Signs

Our Highly Flammable sign products are produced using rigid Foamex board, selected for its lightweight structure and clean finish. This material suits environments where warning signs need to remain visible and intact during everyday use.

The material performs well in both indoor and outdoor settings, helping maintain the appearance of the sign over time. High-contrast printing ensures the warning text and highly flammable substance symbol remain easy to see, allowing the hazard to be recognised quickly without additional explanation.

Available material, fixing, and finish options include:

  • Self-adhesive backing or pre-drilled mounting holes
  • Multiple standard-size options
  • High-contrast printing for improved visibility
  • Matt, gloss, or dry-wipe finishes
  • Optional photoluminescent finish for low-light areas
  • Layout adjustments depending on placement requirements

These options allow Highly Flammable sign formats to be adapted to different environments while keeping the warning consistent and recognisable.

Many organisations also consider general construction guidelines when deciding how flammable warning signage is displayed on active sites.

UK Compliance Requirements for Highly Flammable Signs

UK regulations require Highly Flammable signs to clearly communicate risks associated with substances that ignite easily in workplaces and public environments.

These signs must comply with UK health and safety legislation, including COSHH and CLP requirements where applicable, and use recognised colours, shapes, and pictograms to ensure hazards are easily understood. HSE guidance identifies the flammable pictogram as part of the recognised GB CLP hazard pictograms.

The Highly Flammable sign is used to identify substances or areas where there is a significant fire risk. For workplaces handling flammable liquids, HSE guidance recommends appropriate safety signs where significant risk remains after other control measures have been implemented.

With correct placement and visibility, flammable warning signs support immediate recognition and effective risk communication.

Why Choose Foamex Printing Company for Highly Flammable Signs

  • Durable Foamex material: Highly flammable signs are produced using rigid Foamex board, providing a stable and well-finished base for everyday use.
  • Professional print finish: High-contrast printing helps ensure the warning text and symbol remain easy to recognise and visually consistent.
  • Bulk order options: Larger order quantities can be supplied where consistent safety signage is required across multiple areas.
  • Practical pricing: Pricing is kept reasonable across standard Highly Flammable sign options without unnecessary additions.
  • White-label shipping: Orders are supplied in plain, unbranded packaging to support discreet fulfilment where required.

Choose the Right Highly Flammable Sign

Choose the appropriate Highly Flammable sign for your requirements and select the size and finish that best suits its intended location.

Whether you need a flammable sign, flammable substance sign, flammable warning signs or a danger flammable sign, clear and durable signage helps communicate fire hazards effectively.

Additional information

Size

300mm x 300mm, 400mm x 400mm, 600mm x 600mm, 1000mm x 1000mm

Why does a highly flammable sign mean?
A Highly Flammable sign indicates that substances in the area can ignite very easily and pose a serious fire risk. It warns people to take extra care around ignition sources.
What is the purpose of GHS?
The purpose of GHS (Globally Harmonised System) is to standardise how chemical hazards are classified and communicated using recognised symbols, colours, and warning formats. This helps ensure hazards are understood consistently across different workplaces.
What is the most flammable substance?
There is no single “most flammable” substance, as flammability depends on conditions such as temperature, concentration, and exposure. Many gases, liquids, and vapours are considered highly flammable under certain conditions.
Which element is highly flammable?
Several elements are considered highly flammable, particularly alkali metals such as sodium or potassium, which can react rapidly when exposed to air or moisture.

We aim to dispatch all orders within 5-7 working days of artwork proof approval on our standard turnaround service. We dispatch most orders on a overnight service. Larger items may take slightly longer to deliver. Larger items over 1.5m will need to be delivered via special courier, and will be subject to special delivery price. Please contact us with the delivery address for a quotation. Please call us to confirm delivery time if you require a specific date. 020 8902 9298

  • Safety Signs Size: 6 Standard sizes available, custom available on request
  • Thickness: 3mm
  • Shapes: Bespoke
  • Popular Uses: Construction sites safety signs, Warehouses, Factories, Production Plants
  • Additional Finishing Options*: Dry Wipe, Matt, Gloss, Anti-Graffiti
Use our price calculator below for quick checkout or for larger quantities or bespoke requirements please call our friendly team on 020 8902 9298.

22 Reviews for Highly Flammable Sign - DS14

Bart Aspley October 13, 2026

We replaced our old temporary sign with this one and the difference is noticeable. The Foamex board feels much more durable, looks professional, and stays in place properly. Worth the upgrade.

Carrick Adamson September 5, 2026

We’ve ordered hazard signs from Foamex Printing Company more than once now and the quality has been consistent every time. The Highly Flammable sign is clear, easy to spot, and does exactly what it should.

Callan Abraham August 22, 2026

I was not certain whether I needed the pre-drilled version or the self-adhesive backing, so I dropped a quick message to the team. They came back the same day with a sensible recommendation based on the surface I described. That kind of straightforward advice makes the difference when you just need to get on with the job.

Affra Amory July 13, 2026

Good quality sign. Clear print, solid board, and arrived faster than expected.

Adaline Alban June 8, 2026

Our safety audit highlighted the need for better hazard signage in the chemical storage area. Ordered the Highly Flammable sign from Foamex Printing Company and everything arrived quickly, well packed, and looked professional. No issues during inspection.

Arwyn Allaway May 22, 2026

Used in our busy print workshop for three months and still looks great. The Foamex board feels much sturdier than the alternatives we’d used before, with no signs of warping or peeling.

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