Guide · artwork & materials
What is corflute?
Corflute is twin-wall fluted polypropylene: two thin plastic skins with a row of hollow flutes between them, like cardboard made of plastic. It is light, waterproof and cheap, and it is what nearly every real estate sign, election sign, site sign and event sign in Australia is printed on.
In one paragraph
The word is a brand name that became the ordinary one, the way Esky did, so “a corflute” now means a printed plastic sign, usually 600 × 900mm on a fence or a stake. Signs are printed on 3mm or 5mm board. The sheet is UV-stabilised and rated to 24 months outdoors; plan for six to eighteen, because sun takes the colours first. It is 100% recyclable polypropylene. Five 600 × 900mm signs are $160, delivered.
The short version
| Made of | Virgin polypropylene co-polymer, twin-wall fluted |
|---|---|
| Thickness | 3mm or 5mm; 5mm is the standard sign board |
| Standard sign | 600 × 900mm, cut from a 2400mm sheet |
| Outdoors | Rated up to 24 months; six to eighteen in practice |
| Water | Waterproof: it does not soak up water, swell or rot |
| Temperature | −20°C to +85°C |
| Recycling | 100% recyclable polypropylene, resin code 5 |
| Other names | Coreflute, Correx, corrugated plastic, fluted polypropylene |
What we print for this
Proofed before they run
More about corflute
What does corflute mean?
Nothing on its own: it is a trade name for corrugated fluted plastic that Australians adopted as the everyday word for the material. Ask for “corflutes” and you are asking for printed plastic signs. Overseas the same board is sold as Coreflute, Correx or simply fluted polypropylene.
What is corflute used for?
Anything temporary that has to stand up outdoors: real estate for-sale and open home boards, election signs, construction site signs, event and wayfinding signs, school and club signs, and garage sale signs. It is light enough to carry a stack of, and cheap enough to throw away when the job is over.
Is corflute plastic or cardboard?
Plastic. It is built like corrugated cardboard, two flat skins with a fluted layer between them, but the whole sheet is polypropylene, so rain does not soften it.
Why do the flutes matter?
They make the sheet stiff in one direction only. A tall sign should have its flutes running up and down, or it sags between its fixings. The flutes also take wire stakes: an H-stake slides into the flutes at the bottom edge, which is how most real estate and election signs stand in a lawn.
How long does corflute last outside?
The board is rated to 24 months outdoors. Plan for six to eighteen: UV makes the board brittle and fades the print, and a west-facing fence in Queensland is harder on it than a lab. For a sign that has to stay up for years, use ACM instead; corflute against ACM compares them.
Is corflute recyclable?
Yes, as a material: it is polypropylene, resin code 5, rated 100% recyclable. In practice a rigid sheet this size is not a kerbside item in most places, so take it to a facility that accepts polypropylene sheet, and pull out any metal eyelets first.
How do you cut corflute?
With a sharp utility knife against a straight edge. Along the flutes the blade goes through in one pass; across them, use two or three lighter passes so the top skin does not tear. For a shape, send us the outline and it is routed on the machine.
Printed corflute signs
Sold in fives, delivered, design included
Five 600 × 900mm signs on 5mm corflute are $160 including GST and delivery, made in 2-4 working days. Send your logo and wording and we lay the sign out for your proof, or design it online from a template. Order corflute signs.
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