This hazard warning diamond sign is part of our hazardous substance collection and is used to warn people of the risk of explosion when working with minor explosives such as fireworks. This warning safety sign complies with United Nations regulations governing dangerous goods transportation. If hazardous and dangerous substances are transported and involved in an accident, it is critical that the emergency services recognise what they are dealing with. It comes in two sizes and two materials. This 1.4 Diamond Sign is legal in the United Kingdom. It comes in a variety of sizes and materials, which are listed below. This sign complies with the transportable carriage of dangerous goods act.

Product Options

On all of our safety signs, we offer the fastest guaranteed delivery option in the UK at our checkout. If you order before 3pm, your signs will be delivered by our courier before 9am or before 10am any weekday except Sunday. The standard delivery time is the next day, but we cannot give you a specific time.

Materials Guide

Guidance on Sizes

This table shows maximum viewing distances in 'good' and 'poor' light conditions. Please note that hese are a guidelines only - please refer to BS ISO 3864-1: 2011 for specific calculations. You can download a copy of the Health and Safety Executive's "Safety signs and signals" document by clicking here

Delivery Schedule

Orders in mainland UK placed before 3.00pm from Monday to Friday will be delivered the following working day.

Deliveries to N.Ireland will be between 2-3 days.

The above delivery times are applicable subject to the products being in stock. If orders are placed for products which are not in stock then you will be notified by phone or email.

Delivery is normally made between 9am and 5pm. We are unable to provide customers with an exact time for delivery. While we offer a next day delivery service, it is not guaranteed.