Site Safety Hard Hats Must Be Worn Sign 800mm x 900mm - 4mm Corex
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Site Safety Hard Hats Must Be Worn Sign

This professional multi-message safety board delivers essential safety information in one clear, authoritative display. Perfect for construction sites, industrial facilities, and any workplace where comprehensive safety communication is critical.

  • 800mm x 900mm
  • Recyclable Correx ® (4mm)

£22.48 VAT excluded

£22.48 VAT excluded

SEC.52
1mm Rigid Plastic Self Adhesive Vinyl
  • Our most popular choice for safety signs
  • Can be used indoors or outdoors
  • Can be drilled or stuck onto a wide range of materials
  • UV and weather resistant
  • Gloss white finish with an adhesive backing
  • Mainly for indoor use, but can be used for outdoors
  • Easy to apply
  • For best results, it must be applied to clean, dry and smooth surfaces
4mm Correx® 3mm Aluminium Composite
  • Fluted corrugated board
  • Most used in for sale signs
  • Recyclable and lightweight
  • Ideal for temporary signs
  • Aluminium white face with resin core
  • Internal or external use
  • Ideal for large boards up 2400mmx 1200mm
  • Used for permanent signs
Photoluminescent Self Adhesive Class C Photoluminescent Rigid Grade C
  • Self charges using ambient light
  • Available in the higher performance PSPA rated "Class C" classification for a longer glow
  • Easy to apply to a smooth, clean surface
  • Ideal for indoor use
  • 1.3mm thick photoluminescent rigid plastic
  • Exceeds PSPA Class C classifications. Glows 3x brighter than B
  • Can be drilled or apply no nails adhesive
  • Used for fire safety signs
Brushed Aluminium Brushed Aluminium Self Adhesive
  • Made from 3mm aluminium composite board with a brushed aluminium effect
  • The brushed aluminium effect gives the sign a contemporary smart finish
  • Ideal for indoor or outdoor use
  • Brushed aluminium effect
  • Self Adhesive backing
  • Easy to apply
  • Appy to a smooth, clean surface
  • Ideal for indoor use
2mm Rigid Plastic Foam
  • Can be used indoors or outdoors
  • Can be drilled or stuck onto a wide range of materials
  • UV and weather resistant
  • Available in 3mm or 5mm thickness
  • Often referred to as foamex
  • Durable and lightweight
  • Ideal for internal signs

Do you buy signs in bulk or on a regular basis? We offer the best safety sign reseller package in the industry.

Please enter your details below to find out more

To help you sell safety signs, we have a reseller digital catalogue. To view the catalogue please click on the link digital catalogue. The catalogue is available with no prices or with retail prices and can be rebranded with your details.



We can print any sign you need up to 2400mmx 1200mm on most flat materials or if you have a large order. Please fill in the form below with your enquiry details. Alternatively you can email us at support@rainbowsafety.co.uk or call 01902 590 50 50



Reviews

Grade 
Mark W

Top quality hard hat safety sign that's made a real difference to our site safety culture. The large format is highly visible and the custom branding looks brilliant. The 4mm Corex material is perfect for construction site conditions - handles dust, weather, and rough handling perfectly. Our clients always comment on how professional our safety signage looks. Will definitely order more from Rainbow Safety.

Grade 
Sarah H

As a health and safety manager, this customizable hard hat sign has been perfect for our needs. The 800mm x 900mm size ensures no one can miss our PPE requirements. The professional logo integration shows we take safety seriously. The Corex material is built to last in tough industrial conditions. Our PPE compliance has improved significantly since installation. Outstanding value for money.

Grade 
Michelle K

Brilliant safety sign for our depot entrance. The large size means everyone can see the hard hat requirement from across the yard. The Corex material is excellent - lightweight but incredibly strong and weatherproof. We chose to include our company logo and it looks fantastic. Our safety officer is delighted with how clear our PPE requirements are now. Top quality product.

Grade 
Danny R

Really good hard hat safety sign with logo customization. The 800mm x 900mm size is ideal for our site entrance and the 4mm Corex feels very durable. The PPE message is clear and attention-grabbing. Logo integration looks professional and reinforces our brand. Only giving 4 stars because delivery took a few extra days, but the quality is spot on. Would recommend for large sites

Grade 
Karen L

Outstanding PPE safety sign for our industrial facility. The large format ensures maximum visibility and the custom logo option makes it look very professional. The Corex material has held up perfectly to outdoor conditions over the past year. Our hard hat compliance has definitely improved since installing this prominent sign at the main entrance. Excellent investment in workplace safety.

Grade 
Paul M

Excellent hard hat safety sign for our construction site entrance. The 800mm x 900mm size is perfect - impossible to miss and clearly visible from a distance. The 4mm Corex material is really robust and weather resistant. We added our company logo and it looks incredibly professional. The hard hat message is bold and clear - exactly what we need for PPE compliance. Outstanding quality from Rainbow Safety.

Grade 
Freya Norton

Put this by the turnstile and it’s done the job perfectly. Tough, weather-resistant and instantly recognisable. Everyone seems to see it right away.

Grade 
Lewis Hargreaves

This Correx version was handy for quick updates—just lift and move when needed. Ideal for shifting from site to site when layouts change.

Grade 
Bethany Shaw

Mounted the sign near the pedestrian gate—visibility is top-notch, even in dim light. The strong blue and white design really stands out.

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