Glow in the Dark Keep Locked Shut Door Sign
Ensure doors remain securely closed and restricted with this glow in the dark Keep Locked Shut sign.
• Clearly instructs personnel to keep doors locked shut
• Ideal for factories, plant rooms, warehouses, and restricted access areas
• Photoluminescent design remains visible in darkness and low-light conditions
• Available in durable glow in the dark self-adhesive and rigid plastic materials
• Helps improve site safety and maintain access control procedures
Product Overview
This glow in the dark Keep Locked Shut sign is designed to provide clear access and security instructions in both normal lighting and blackout conditions. The photoluminescent finish absorbs ambient light and remains highly visible in darkness, helping maintain safety procedures and restricted access requirements across commercial and industrial environments.
Where to Use
- Factories and industrial facilities
- Plant and boiler rooms
- Warehouse access points
- Restricted staff-only areas
- Emergency procedure routes
Key Features
- Glow in the dark photoluminescent finish
- Clear and highly visible instruction text
- Designed for low-light and blackout visibility
- Suitable for indoor commercial environments
- Helps reinforce access control procedures
Materials & Options
- Extra Glow in the Dark Self Adhesive (Class C)
- Extra Glow in the Dark Rigid Plastic (Class C)
- Extra Glow in the Dark Rigid Plastic (Self Adhesive Back)
Compliance
This sign supports compliance with UK health and safety regulations, including:
- Health and Safety at Work etc. Act 1974
- Safety Signs and Signals Regulations 1996
Frequently Asked Questions
Where should this sign be installed?
This sign should be installed on or near doors that must remain locked shut, particularly in restricted or controlled access areas.
Is this sign suitable for outdoor use?
This sign is primarily intended for indoor use where glow in the dark visibility is required during low-light or emergency conditions.
What does this sign indicate?
It instructs staff and visitors to keep the specified door locked shut for safety, security, or operational control purposes.
Trade Discounts
Rainbow Safety supplies safety signs to trade professionals across the UK.
Our trade customers include:
- Fire safety service companies
- Fire risk assessors and safety consultants
- Electrical wholesalers
- Facilities management companies
Approved trade customers receive:
- Preferential trade discounts
- Better margins for reselling safety signs
- Marketing support to help you sell more signs
- Access to our full range of safety signs
With the support and marketing tools provided, our sales have grown to over £3,000 per month.
Fire extinguisher servicing margins are not what they used to be, so supplying safety signs has become a valuable additional revenue stream for our business. On one warehouse safety survey alone we £5,100 in a single order.
Previously we were regularly asked to supply safety signs but couldn’t compete with internet prices while maintaining healthy margins. Working with rainbowsafety.co.uk.
Loyalty Rewards
Rainbow Safety rewards regular customers across the UK who order safety signs on an ongoing basis.
- Schools and colleges
- Facilities management companies
- Contractors and maintenance teams
- Offices and commercial premises
- Preferential pricing for regular customers
- Free design service for custom safety signs
- Access to exclusive promotional offers
- Dedicated account manager if required
“Rainbow Safety has become our go-to supplier for safety signs.”
We regularly need safety signs for maintenance work, refurbishments and ongoing compliance updates. Since ordering from Rainbow Safety, the process has been straightforward, reliable and cost-effective.
The loyalty rewards and special offers have helped us save money across repeat orders, while the wide product range means we can usually source everything we need in one place.
Fast ordering, consistent quality and ongoing rewards have made Rainbow Safety a valuable supplier for our business.
Reviews
This is a dependable sign. It feels robust, glows clearly, and has given our locked doors the required visibility. My only wish is for a slightly larger size option by default (we had a big door). Still, for the size we ordered, it works very well.
Exactly what we needed for our security door. The printing is crisp, the photoluminescent material performs excellently (remains visible in darkness), and it gives confidence we are compliant with safety standards. Fast delivery too. Highly recommended.
Good solid sign. The glow works well after being exposed to light, and it sticks firmly to a painted metal door. My only minor gripe is that on a slightly curved edge the adhesive didn’t fully grip until I pressed it down firmly—but that’s a small issue. Overall very happy.
A very useful safety sign. The glow effect is impressive, and it adheres well to a smooth painted surface. On a slightly textured door, adhesive needed extra pressure to bond fully. But once in place, it stays firm and visible. Good product.