Ghost Block Opaque Corrugated Plastic Sheets
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Stop the Backlight Shadow. Upgrade to Ghost Block™ Zero Show-Through Substrates.
Standard corrugated plastic sheets show unsightly shadows and reverse-side graphics under direct sunlight. Engineered with an eco-friendly light-blocking inner core and proprietary automated dual-sided lamination, Ghost Block™ delivers complete opacity, an ultra-smooth print surface with minimized flute lines, and superior outdoor rigidity.
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Zero Show-Through: 100% blockout core eliminates backlit ghosting and double-sided shadows.
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Ultra-Smooth Print Face: Dual-film automated lamination hides fluting for razor-sharp UV flatbed output.
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Commercial Durability: Increased structural rigidity resists high winds, UV yellowing, and edge peeling.
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Precision Square-Cut: Factory automated squaring with diagonal tolerance strictly within $\le$ 2 mm.
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Product details
| Size | 48“X120″, 48“X96″(96″ Flute Direction) |
|---|---|
| PACKAGING | Box(10), Each |
| Thickness | 10mm, 4mm, 6mm, 8mm |
| Color | Black, Orange, White, White(Opaque), Yellow |
Product Description
The Next Evolution in Double-Sided Yard Sign Substrates
Double-sided yard signs should never compromise your client’s brand. Standard fluted corrugated plastic allows bright direct sunlight to bleed through, projecting the reverse side’s artwork directly onto the front face. The result? Washed-out contrast, muddy text, and an unprofessional “ghosting” effect.
Ghost Block™ Opaque Corrugated Plastic Sheets solve this industry-wide headache at the manufacturing level. Featuring a specialized eco-conscious light-blocking core layer, Ghost Block™ stops 100% of light transmission in its tracks. Both sides remain crisp, high-contrast, and independent—even under harsh midday sun.
Beyond Standard Blockout: The Dual-Lamination Edge
Most blockout boards on the market suffer from pronounced flute lines and edge delamination. Mcoro changes the game with our custom-engineered automated dual-film lamination technology:
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Flute-Concealing Smoothness: Unlike bare fluted plastic, our automated lamination applies a uniform, tension-controlled film over the flutes. This creates a remarkably flat, satin-smooth printing plane that prevents ink sinking, minimizes visible ridges, and produces gallery-grade UV direct-print graphics.
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Bubble-Free & Weather-Sealed: Machine-applied under cleanroom-standard pressure, the surface film is 100% bubble-free with reinforced, anti-curl edges that will not fray, peel, or dog-ear under high wind or humidity.
- Ready for High-Speed Press Runs: Cut with precision industrial CNC sheet slitters, every sheet meets a strict square-cut tolerance of within $\pm$2 mm across diagonals—eliminating registration jams, edge bleed errors, and manual re-trimming on your flatbed printers.
Mcoro Product Advantages
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100% True Blockout Performance (Zero Ghosting):
Our integrated eco-friendly blackout layer completely blocks UV and direct sunlight, allowing flawless double-sided printing without back-lit bleed or reverse-graphic interference.
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Proprietary Automated Dual-Sided Lamination:
Unlike manual or third-party laminated substrates, our in-house automated process bonds a protective smooth finish to both faces. Flute lines are virtually invisible, giving your prints a polished, high-end look that standard Coroplast cannot match.
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Industrial-Strength Rigidity & Wind Resistance:
The dual-layer lamination creates a composite I-beam structural effect, significantly boosting board stiffness. Signs stay upright against wind deflection and resist long-term UV weathering without buckling.
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Zero Edge Curling & Anti-Fraying:
Precision thermal/pressure bonding ensures the outer film fuses flush to the substrate perimeter, preventing edge lifting, water intrusion, or dirt trapping during transport and outdoor installation.
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Precision Square Cut ($\le$ 2 mm Diagonal Tolerance):
Every sheet is squared to high-speed commercial printing standards. Perfect 90-degree corners guarantee fast alignment on flatbed vacuum beds and zero registration drift.
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100% Recyclable & Eco-Friendly Chemistry:
Engineered without hazardous heavy metals or toxic coatings, offering an environmentally responsible alternative to heavy PVC or foamed boards.
Technical Comparison Table
| Feature | Standard Fluted Yard Signs | Typical Market Blockout | Ghost Block™ Dual-Laminated |
| Light Blockout | Translucent (Heavy show-through) | Partial / Inconsistent | 100% True Opaque (Zero Ghosting) |
| Surface Smoothness | Visible flutes / Ridged texture | Visible flutes | Ultra-Smooth (Minimizes flute visibility) |
| Lamination Process | None (Raw plastic) | Single-layer / Inconsistent | Proprietary Automated Dual-Sided |
| Edge Durability | Prone to bent corners | Potential film delamination | Anti-Curl, Weather-Fused Edges |
| Board Rigidity | Standard flexibility | Moderate | Enhanced Stiffness & Wind Deflection |
| Square-Cut Deviation | Up to 4–6 mm variation | $\pm$3 mm variation | Precision $\le$ 2 mm Diagonal Tolerance |
| Ink Compatibility | Standard UV Flatbed / Screen | UV Flatbed / Screen | Optimized for High-Speed UV Direct-Print |
Frequently Asked Questions (FAQ)
Q1: What is the difference between Mcoro Panels and Mcoro Blanks?
A: Blanks are pre-cut to smaller, standard sizes (like 24″ x 18″) for immediate yard sign use. Panels are large-format sheets (4’x8′, 4’x10′, 5’x10′) used as raw material for grand-format printing, construction, or custom cutting.
Q2: Which thickness should I choose for my project?
A: 4mm is ideal for standard signage and temporary floor protection. 6mm and 8mm offer excellent rigidity for large commercial signs. The heavy-duty 10mm is recommended for construction site hoarding, concrete formwork, and industrial packaging.
Q3: Can these large panels be printed on directly?
A: Yes. The panels feature a smooth, specially treated surface that provides excellent ink adhesion for UV flatbed printers and screen printing.
Q4: Which direction do the flutes run on these large panels?
A: By standard manufacturing practice, the flutes run along the length of the board (e.g., the 96″ or 120″ side) to maximize structural integrity. Custom flute directions can be requested for bulk factory orders.
Q5: Are these panels suitable for outdoor construction sites?
A: Absolutely. They are waterproof, highly impact-resistant, and won’t rust or rot, making them perfect for temporary wall barriers and heavy-duty floor protection.
Q6: Can I cut these panels myself?
A: Yes. 4mm panels can be easily scored and cut with a utility knife. Thicker 8mm and 10mm panels are best processed using standard woodworking tools, CNC routers, or digital flatbed cutters.
Q7: How are these large panels shipped?
A: Due to their massive size, Mcoro 4’x8′, 4’x10′, and 5’x10′ panels are securely stacked, strapped, and shipped flat on custom heavy-duty pallets via LTL (Less-than-Truckload) freight to ensure they arrive without bent corners.
Q8: Are the 10mm panels heavy?
A: Despite their extreme thickness and rigidity, the twin-wall hollow structure makes our 10mm polypropylene panels surprisingly lightweight and easy for a single worker to handle on a job site.
Q9: Can these be used to make reusable shipping boxes?
A: Yes. The 6mm to 10mm panels are the industry standard for fabricating durable, reusable corrugated plastic boxes and layer pads for automotive and logistics applications.
Q10: Are the panels environmentally friendly?
A: Yes, they are manufactured from 100% recyclable polypropylene and can be fully recycled at the end of their service life.
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MCORO's Philosophy
Online store with a wide selection of premium yard signs and display hardware
Effective signage is an essential attribute of any successful campaign, business, or event. It is our products that give your message the right visibility, making your brand stand out, creating favorable conditions for driving traffic, or conveying information clearly to your audience. More and more often, customers want to place an order in an online store, where you can sit down at the computer in your free time, review product specifications, and calmly buy the display materials you need. Our online store features a comprehensive catalog of sign supplies: from weatherproof corrugated plastic blanks to heavy-duty 9-gauge galvanized steel H-stakes, everything is available for your display needs.
Manufacturing premium display hardware is a science of precision and durability
Signage material manufacturers are full of amazing offers, but true quality stands out. In our catalog, you will find both standard mass-produced essentials and premium creations—heavy-duty stakes and precision-cut sign blanks directly from professional factory lines, which will be appreciated by true connoisseurs of structural integrity. We have engineered and selected for you the best models from our modern manufacturing facilities, managing to ingeniously combine wind-resistant strength, premium quality, and tool-free practicality in each product unit. Our assortment includes products manufactured directly by Mcoro's proven factory, which for many years of continuous work has guaranteed strict quality control, featuring advanced T-Joint welds and perfectly fitted flutes.