Access Forbidden to All Unauthorised Persons - Safety Signs by Caledonia Signs

An Access Forbidden to All Unauthorised Persons sign is used to clearly indicate that only individuals with proper authorisation are permitted to enter a specific area. This restriction helps protect sensitive or hazardous environments from unauthorised entry, ensuring the safety of both personnel and property. By limiting access, the sign helps prevent accidents, security breaches, or interference with critical operations.

Such signs are commonly placed at the entrances to restricted zones like industrial plants, construction sites, laboratories, or areas containing dangerous machinery or chemicals. Unauthorised individuals entering these spaces could be at risk due to unfamiliarity with safety procedures or exposure to hazards. The sign serves as a clear warning to keep unqualified or unauthorised people out.

In addition to safety, the sign plays a crucial role in security. Many facilities contain confidential information, valuable equipment, or sensitive data that must be protected from unauthorised access. Placing this sign at strategic points helps enforce security protocols and discourages trespassing or theft.

Finally, the sign is useful in areas requiring privacy or controlled environments, such as research centers, government buildings, or military sites. Restricting entry to authorised personnel only ensures that sensitive work or information remains confidential and that the integrity of operations is maintained without disruption.

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.

Rigid Plastic with Self Adhesive Backing: Our standard rigid plastic is a gloss white, smooth, solid material that allows for crisp printing of text and graphics - resistant to weather, moisture, chemicals. A strong peel & stick adhesive backing eliminates the need for tools or hardware, providing a long-lasting bond to most smooth surfaces, saving time and labour costs.