Fluted Board Printing
(Also Known as Correx®)
Our fluted board printing uses high-quality twin-wall polypropylene sheet, commonly referred to in the industry as Correx®.
We supply a Correx®-equivalent fluted board, printed direct to board, delivering lightweight, waterproof and cost-effective signage for indoor and outdoor use.
What Is Fluted Board (aka Correx®)?
Fluted board is a twin-wall polypropylene sheet with an internal flute structure.
In the UK, this material is often referred to as Correx®, which is a registered brand name commonly used to describe this type of board.
Our boards are a brand-neutral fluted polypropylene equivalent, offering the same performance characteristics without using Correx® branded sheet.
Why Choose Fluted Board?
Key features:
Lightweight yet rigid construction
Fully waterproof and weather-resistant
Impact resistant and easy to handle
Cost-effective for temporary signage
Suitable for indoor and outdoor use
This makes fluted board ideal where visibility, durability and value are required.
Direct to Board Printing
We print direct to fluted polypropylene board using high-resolution UV digital printing, resulting in:
Sharp text and clean graphics
Strong, vibrant colours
No mounting or lamination required
Instant ink curing for durability
Boards are supplied ready to use.
Material & Technical Specification
Material: Twin-wall polypropylene fluted board
Thickness options: 3.5 mm or 5 mm
Surface: Smooth printable face
Water resistance: Fully waterproof
Use: Short-to-medium term signage
Indoor & Outdoor Performance
Fluted board (Correx®-type material) is suitable for short-to-medium term outdoor use.
Performs well in typical UK weather
Resistant to rain and moisture
Ideal for temporary or semi-permanent signage
For long-term exterior signage, more rigid materials such as aluminium composite may be more appropriate.
Common Uses
Fluted board is widely used for:
Estate agent boards
Construction and site signage
Event and promotional signs
Directional signage
Safety and warning boards
Temporary retail signage
Used by estate agents, councils, contractors, schools and event organisers.
Sizes & Customisation
Any custom size available
Portrait or landscape orientation
Single-sided or double-sided print
Bulk quantities available
We can also advise on fixings and installation methods if required.
Why Order from Graphic Warehouse?
UK-based direct-to-board printing
Correx®-equivalent fluted polypropylene board
Commercial-grade print equipment
Fast turnaround times
Trade & volume pricing available
FAQs – Fluted Board (aka Correx®)
Is this Correx®?
Correx® is a registered brand name. We supply a high-quality fluted polypropylene equivalent with the same performance characteristics.
Is fluted board waterproof?
Yes — it is fully waterproof and suitable for outdoor use.
Can it be used outdoors?
Yes, for short-to-medium term outdoor signage.
What thickness should I choose?
3.5 mm suits most applications; 5 mm provides extra rigidity for larger boards.
Can you print double-sided?
Yes — double-sided printing is available.