Highly Flammable Diamond - Safety Signs by Caledonia Signs

A critical safety symbol used to indicate that a substance or material can easily ignite and burn rapidly when exposed to heat, sparks, or open flames. The label typically features a red diamond with a black flame symbol, in line with the Globally Harmonised System (GHS) and CLP (Classification, Labelling and Packaging) Regulation in the UK and EU. It is designed to warn users and emergency responders of the increased fire risk posed by the contents.

You should use a Highly Flammable diamond label on containers, packaging, storage units, and transport vehicles that contain substances such as solvents, aerosols, petrol, alcohols, acetone, or certain gases and chemicals. These labels are commonly found in chemical manufacturing plants, laboratories, paint shops, fuel depots, automotive workshops, and during the shipping of hazardous materials. They’re also used on consumer products like spray paints and cleaning agents that meet the flammability criteria.

The main reason for using this label is to prevent fire-related accidents and ensure compliance with health and safety laws, such as the UK's Dangerous Substances and Explosive Atmospheres Regulations (DSEAR) or international transport regulations like ADR, IMDG, and IATA. It informs workers and handlers to take precautions—such as storing the material away from heat sources, using non-sparking tools, and wearing suitable personal protective equipment (PPE).

Highly Flammable diamond labels must be clearly displayed on all sides of packaging and transport units containing the hazardous material. Their standardised design ensures instant recognition, which is essential for quick and appropriate action in both routine handling and emergency situations. Ultimately, these labels help protect people, property, and the environment from the severe risks associated with flammable substances.

Materials Explained

Below is a more detailed description of the materials this particular safety sign is available in. Helping you decide which sign option is most suitable for your application.

Rigid Plastic: This lightweight, gloss white PVC is resistant to weather, moisture, chemicals, and general wear and tear, making it suitable for harsh environments. Its smooth, solid surface allows for crisp printing of text and graphics, enhancing readability and visual impact. Businesses who choose Rigid Plastic signs benefit from fewer replacements and minimal maintenance, making it a practical investment for reliable and effective safety signs.

Self-Adhesive Vinyl: Self-adhesive vinyl is easy to apply and it’s budget-friendly. Its adhesive backing allows for easy application to a variety of surfaces such as glass, metal, plastic, and painted walls, which simplifies installation and reduces setup time. Self-adhesive vinyl provides a clean, professional finish that suits many indoor environments including offices, retail, industrial sites, and vehicles. It is more affordable than many other material types and allows for custom shapes, colours, and graphics.

Roll / Sheet of Labels: Manufactured from self-adhesive vinyl, our roll / sheets of labels are easy to apply and are budget-friendly. The adhesive backing on each label allows for easy application to a variety of surfaces making them ideal for high-volume tasks such as product packaging, shipping, inventory tagging, or compliance labelling.