Coroplast Signs
Twin-wall polypropylene sign board in any colour with printing service available
- Thickness2 mm to 12 mm
- Weight250 g/m² to 2000 g/m²
- Standard Size2440 mm × 1220 mm or as per customer requirement
- GradesCorona treated · Anti-static · Conductive · Anti-UV · Flame retardant
Send a drawing by WhatsApp or email for a custom size. Samples are free of charge and sent by FedEx UPS or DHL.
Product Overview
Corrugated plastic sheet is commonly known as Coroplast, Corflute, Correx, fluted PP board, twin-wall corrugated sheet, PP plate sheet and fluted polypropylene sheet. It is a lightweight hollow-structure material that is non-toxic, waterproof, shockproof, corrosion resistant and durable. Compared with paperboard, fluted polypropylene sheet has the advantages of being waterproof and non-fading.
We produce corona treated plastic sheet, etched on both sides at 45 dyne level during the extrusion process, which is ideal for screen printing and digital printing. Our printing grade sheet has excellent printability, designed for ink adhesion and self-adhesive vinyl application, and it meets the demanding needs of the screen printing and signage market. It is widely used in indoor and outdoor signage, real estate signage, election signage, advertising displays and booths. We can provide a professional printing service according to your advertising needs.
Key Benefits
Excellent Mechanical Property
The twin-wall structure gives strong toughness, impact resistance, high compressive strength, shock buffering, high hardness, good bending behaviour and long service life.
Light Weight and Material Saving
To reach the same mechanical result, an extruded corrugated sheet uses less material, costs less and weighs less than a solid board.
Heat and Sound Insulation
The hollow flute structure transfers far less heat and sound than a solid board of the same thickness.
Anti-Static Conductive and Flame Retardant Grades
Modification, compounding and surface treatment produce anti-static, conductive and flame retardant versions of the same base sheet.
Stable Chemical Property
Against carton board or wooden board the sheet offers chemical resistance, waterproofing, moisture resistance, weatherability, anti-corrosion and fade resistance.
Smooth Surface in Many Colours
Masterbatch modification extrudes the sheet in different colours and the surface accepts paint and ink jet printing well.
Environmentally Friendly
Polypropylene is non-toxic and non-polluting, simple to dispose of and can be recycled.
Applications and Fit
Application Scenarios
- Indoor and outdoor signage
- Real estate signs
- Election and political signs
- Advertising displays and exhibition booths
- Special event signage
- Lawn and site signs
Who It Is For
- Screen printers and digital print houses
- Sign and display manufacturers
- Real estate agencies
- Election campaign suppliers
- Exhibition and event contractors
Problems It Solves
- Untreated polypropylene will not hold screen or digital ink.
- Paper board signs warp, fade and fail outdoors.
- Rigid PVC or aluminium costs more than a short campaign justifies.
Technical Data
Specifications
| Thickness | 2 mm to 12 mm |
|---|---|
| Weight | 250 g/m² to 2000 g/m² |
| Standard Size | 2440 mm × 1220 mm or as per customer requirement |
| Grades | Corona treated · Anti-static · Conductive · Anti-UV · Flame retardant |
| Colour | As per customer requirement |
| Packing | Plastic shrink film and wooden pallet or as per customer requirement |
Technical Features and Materials
High impact co-polymer polypropylene resin. Printing grade is corona treated to 45 dynes on both faces during extrusion.
Manufacturing Process
- Raw Material High impact co-polymer polypropylene resin, with anti-static, conductive, UV or flame retardant masterbatch added at the extruder when a modified grade is ordered.
- Extrusion The sheet is extruded on one of six production lines to the ordered thickness and weight per square metre. Printing grade stock is corona treated on both surfaces during extrusion.
- Cutting and Creasing Sheets are cut to the ordered panel size and creased where the part has to fold.
- Fabrication Boxes, totes, trays, sleeves and layer pads are formed by welding, riveting or sealing the edges and corners, and accessories are fitted.
- Inspection and Packing Finished goods are inspected, then packed in plastic shrink film on wooden pallets or to the packing method the customer specifies.
From Enquiry to Delivered Goods
Quality Control
ISO 9001:2000 Quality Management System
Operations run to an ISO 9001:2000 quality management system so that the process meets international standards.
100% Inspection Before Delivery
Quality control is carried out inside our own factory and every product is 100% tested before it is released for delivery.
Extrusion Line Control
Thickness, weight per square metre, flute geometry and colour are set and checked on the extrusion line so each sheet matches the ordered specification.
Fabrication Check
Cut sizes, crease positions, welded corners and sealed edges are checked against the approved sample before packing.
Certifications and Standards
Operations run to an ISO 9001:2000 quality management system. Container resin can be specified as ESD safe or flame retardant meeting UL 94 HB flame retardant grade. Where food contact packing is required, 100% new virgin materials are used. We do not publish certificates we have not been given — ask and we will send what applies to your order.
Customization and Comparison
Customization Options
- OEM and customised orders are welcome. Send the drawing and the requirements of the style you want and we will submit samples for your approval.
- Thickness, weight per square metre, panel size, colour and grade are all set per order.
- Boxes and containers can be produced in different colours, thicknesses and styles to your detailed requirements, including dividers, layer pads and accessories.
- Printing and self-adhesive vinyl application are available on corona treated printing grade stock.
Comparison With Other Options
| Option | What It Means for You |
|---|---|
| Coroplast Sign Board | Waterproof, non-fading, printable, light |
| Paperboard Sign | Absorbs water, fades, single season |
| Rigid Plastic Sheet | Heavier and more expensive for the same panel size |
Use Guide
- Ask for corona treated printing grade whenever the board will be printed or vinyl applied; treatment is done during extrusion, not afterwards.
- Print the stock rather than storing it a long time first, because corona treatment has a working life.
- Specify anti-UV grade for signs that stay outdoors through a full season.
- Give the finished sign size so boards are cut to it and you do not pay to ship offcuts.
Related Products
Signs and AdvertisingCorflute SignsCorona treated printing grade board at 45 dynes for screen and digital printingView Details 
Signs and AdvertisingCartonplast SignsThe same twin-wall sign board sold as Cartonplast, Correx and CorriboardView Details 
Corrugated Plastic SheetFluted Polypropylene SheetCorona treated printing grade twin-wall board for graphics, packaging and agricultureView Details 
Corrugated Plastic SheetCorrugated Plastic SheetExtruded twin-wall polypropylene board, 2–12 mm, in any colour and gradeView Details Related Industry Applications
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FAQ
FAQ About Coroplast Signs
What Does 45 Dyne Corona Treatment Mean
Both surfaces are etched during extrusion to a 45 dyne level, which is the surface energy screen and digital inks and self-adhesive vinyl need to bond reliably.
What Sizes and Thicknesses Do You Supply
2 mm to 12 mm at 250 g/m² to 2000 g/m², standard size 2440 × 1220 mm or as per your requirement.
Can You Print the Signs for Us
Yes. We can provide a professional printing service according to your advertising needs.
Can I Get UV or Flame Retardant Grade
Yes. Corona treated, anti-static, conductive, anti-UV and flame retardant grades are available.
How Do I Get Samples
Samples are free of charge. We send them as soon as possible by FedEx, UPS or DHL international air express.
How Long Does Production Take
From order and payment confirmation it takes 7 to 10 days to arrange production and book shipping space in advance before the goods are ready for shipment.
Get a Quotation for Coroplast Signs
Send thickness colour weight per square metre and end use and we quote against that specification
Samples are free of charge and sent by FedEx UPS or DHL · Production 7 to 10 days after order confirmation