5mm Polypropylene Sheet — Printable White Corrugated Board for Signs & Packaging
PPBOXY offers high-quality 5MM Polypropylene Sheets correx packaging , sign making , printing , y construction . These láminas de polipropileno acanaladas are designed to provide strength, durability, and versatility for a wide range of applications. Whether you’re creating signage, packaging solutions, or interior partitions, our 5MM Polypropylene Sheets offer the ideal material for the job.
Key Features of PPBOXY’s 5MM Polypropylene Sheet The 5mm polypropylene sheet occupies a sweet spot in the PP corrugated board range—thick enough to be self-supporting for freestanding signs and structural dividers, yet light enough for one-person handling and economical bulk shipping. Every sheet is manufactured with dual-sided corona treatment, giving it a printable surface that ordinary PP boards cannot match.
Corona-Treated Surface for Direct Printing
Unlike untreated polypropylene, which repels most inks and requires expensive primers or adhesive films, PPBOXY’s 5mm sheets undergo corona discharge treatment on both sides. This process raises the surface energy of the PP from approximately 30 dynes/cm to over 42 dynes/cm—well above the threshold required for UV-cured, solvent-based, and latex inks to bond directly. The result is sharp, durable print that resists scratching and weathering, eliminating the need for lamination in most short-term outdoor applications.
White Dual-Sided Finish for Maximum Print Contrast
Both faces of the sheet feature a clean white surface that maximizes colour vibrancy and text legibility. For real estate “For Sale” boards and trade show graphics, the white background is not just aesthetic—it is functional. Full-bleed colour prints appear significantly brighter on white PP than on natural or grey corrugated boards, making your signage visible from a greater distance.
5mm Thickness: The Signage Industry Sweet Spot
In the signage sector, 3mm boards tend to warp under wind load and lack the rigidity for A-frame or stake-mounted installations. At 5mm, the sheet resists deflection without the added weight and cost of 8mm or 10mm boards. This makes it the default choice for estate agent boards, exhibition panels, and promotional point-of-sale displays that must stand upright unsupported.
Moisture and Chemical Resistance
Polypropylene is inherently resistant to water, most acids, alkalis, and oils. Unlike cardboard, a 5mm PP sheet will not soften, delaminate, or grow mould when exposed to rain or condensation. This property makes it equally reliable for packaging dividers in humid warehouses and outdoor signs that must survive weeks of British weather without replacement.
Easy Fabrication: Cut, Fold, and Weld
The fluted core structure allows the sheet to be scored and folded into three-dimensional forms—trays, sleeves, and custom inserts—using nothing more than a utility knife and a straight edge. For higher volumes, the material can be die-cut, creased, and even ultrasonically welded, producing packaging and display components at scale without tooling costs that would price out cardboard alternatives.
Specifications
Especificaciones
Value
Material
Polypropylene (PP) corrugated / fluted
Espesor
5mm (3/16″)
Sheet Colour
White (both sides)
Tratamiento de superficies
Corona treated (dual-sided)
Surface Energy (post-treatment)
≥ 42 dynes/cm
Tamaño estándar de hoja
1220 × 2440 mm (4′ × 8′)
Custom Sizes Available
Yes — cut to specification
Weight (per m²)
~650 g
Densidad
0.90–0.91 g/cm³
Flute Type
Square / round (specify on order)
Operating Temperature
-20°C to +80°C
Water Absorption
< 0.01% (virtually waterproof)
Resistencia química
Acids, alkalis, oils, most solvents
Print Compatibility
UV-cured, solvent-based, latex, screen printing
Reciclabilidad
PP Code 5 — fully recyclable
Fire Rating
Standard (flame-retardant grade available on request)
Minimum Order Quantity
Ninguno
Applications of PPBOXY’s 5MM Polypropylene Sheet Real Estate Signs One of the most common uses for our 5MM Polypropylene Sheets is in the production of “For Sale” real estate signs . Their durability , weather resistance , y printability make them the perfect solution for estate agents looking to create high-quality, long-lasting signage.
Packaging and Storage Solutions These polypropylene sheets are also commonly used in packaging , where they provide a lightweight yet sturdy material for creating protective layers, dividers, and inserts. The moisture resistance of the material ensures that items are protected during storage or transport, making them a popular choice in industries that require reliable, cost-effective packaging.
Sign Making and Printing Due to their easy ink adhesion y customizable design , our 5MM Polypropylene Sheets are ideal for sign making y printed advertisements . They are frequently used in the production of advertising boards , banners , trade show displays , y promotional materials . The white finish ensures excellent visibility for both printed text and graphics.
Temporary Barriers and Partitions In the construction industry, these sheets are used as temporary barriers or partitions , where their lightweight , flexible , y sturdy properties make them a practical choice. They provide an easy-to-install solution for creating dividing walls or safety barriers on construction sites.
5mm Polypropylene Sheet vs Cardboard, PVC & Foam Board
Propiedad
5mm PP Corrugated Sheet
Cardboard / Corrugated Fiberboard
PVC Foam Board
Polystyrene Foam Board
Water Resistance ✅ Waterproof—no softening or mould
❌ Absorbs water, loses structural integrity
✅ Waterproof
⚠️ Moisture penetrates at cut edges
Print Quality (Corona Treated) ✅ Direct print—UV/solvent/latex inks bond without primer
✅ Direct print—but ink bleeds on uncoated grades
✅ Direct print
⚠️ Requires special inks or vinyl wrap
Weight (per m²) ~650 g
~800 g
~1,200 g
~400 g
Reusability ✅ 50+ cycles typical
❌ 1–3 cycles before fibre degradation
✅ 20+ cycles
❌ Cracks after 2–3 uses
Outdoor Lifespan 6–12 months (short-term)
1–4 weeks before warping/softening
2–5 years
2–8 weeks before UV degradation
Resistencia química ✅ Resists acids, alkalis, oils
❌ Degraded by moisture & most chemicals
✅ Good
❌ Dissolved by solvents
Reciclabilidad ✅ PP code 5—widely recycled
✅ Paper—widely recycled
⚠️ PVC recycling limited
⚠️ PS code 6—limited facilities
Coste por m² Medium
Bajo
High
Low–Medium
Custom Fabrication ✅ Cut, fold, die-cut, weld
✅ Cut, fold, glue
⚠️ Requires heat bending
⚠️ Hot-wire cutting only
Key Takeaway: For applications requiring the print quality of PVC at the weight and cost of cardboard—particularly real estate signs, exhibition graphics, and reusable packaging dividers—the 5mm corona-treated polypropylene sheet is the only material that delivers on all three criteria simultaneously.
Preguntas frecuentes
Q1: What does “corona treated” mean, and why does it matter for printing?
Corona treatment is an electrical discharge process that increases the surface energy of polypropylene from approximately 30 dynes/cm to over 42 dynes/cm. Untreated PP is naturally non-porous and resists ink adhesion—most inks will bead up and rub off. After corona treatment, UV-cured, solvent-based, and latex inks bond directly to the sheet surface without primers, lamination, or adhesive films. All PPBOXY 5mm polypropylene sheets are corona treated on both sides as standard.
Q2: Is the 5mm polypropylene sheet suitable for outdoor real estate signs?
Yes. The 5mm thickness provides sufficient rigidity for stake-mounted and A-frame estate agent boards, and the corona-treated white surface produces vibrant, weather-resistant prints. In typical UK and European conditions, a 5mm PP sign board will last 6–12 months outdoors—far outlasting cardboard alternatives that warp and degrade within weeks. For longer-term outdoor installations, consider our 5mm Blue PP Corrugated Sheet , which offers additional UV resistance for heavy-duty exposure.
Q3: How does the 5mm polypropylene sheet differ from the 5mm blue PP corrugated sheet?
Both sheets share the same 5mm thickness and fluted polypropylene core structure, but they serve different purposes:
5mm Polypropylene Sheet (white, this page): Optimised for printing and signage. The white dual-sided finish maximises print contrast, and corona treatment ensures direct ink adhesion. Primary applications: real estate signs, exhibition displays, printed packaging inserts.5mm Blue PP Corrugated Sheet: Optimised for heavy-duty protection and colour-coded identification. The blue colour serves as a visual marker in warehouse coding systems and construction site protection. Primary applications: floor protection, layer pads, colour-coded storage.
Choose the white sheet when print quality is your priority; choose the blue sheet when visibility, coding, or heavy-duty surface protection is the requirement.
Q4: Can 5mm PP corrugated sheets be cut and folded without special tools?
Yes. The fluted core allows the sheet to be scored with a utility knife and folded into three-dimensional shapes—trays, sleeves, and custom inserts. For straight cuts, a guillotine or fine-tooth saw produces clean edges. For production volumes, die-cutting and ultrasonic welding are available. This makes the material far easier to fabricate than PVC foam board, which requires heat-bending equipment.
Q5: What is the difference between this 5mm sheet and a general “PP corrugated sheet”?
“PP corrugated sheet” is a broad term that covers all thicknesses (typically 2mm–10mm) and colours. Our PP Corrugated Sheet page covers the full product range with general specifications. This 5mm Polypropylene Sheet page focuses specifically on the 5mm thickness in white with corona treatment—the configuration most commonly ordered by signage companies, estate agents, and packaging engineers who need guaranteed printability.
Q6: Are PPBOXY 5mm polypropylene sheets recyclable?
Yes. Polypropylene is classified under plastic recycling code 5 (PP). After their service life, the sheets can be collected and processed through standard PP recycling streams. Because the material does not degrade with moisture or chemical exposure, sheets used in packaging applications can often be reused 50+ times before recycling—making the per-trip environmental footprint significantly lower than single-use cardboard alternatives.
Propiedad
5mm PP Corrugated Sheet
Cardboard / Corrugated Fiberboard
PVC Foam Board
Polystyrene Foam Board
Water Resistance ✅ Waterproof—no softening or mould
❌ Absorbs water, loses structural integrity
✅ Waterproof
⚠️ Moisture penetrates at cut edges
Print Quality (Corona Treated) ✅ Direct print—UV/solvent/latex inks bond without primer
✅ Direct print—but ink bleeds on uncoated grades
✅ Direct print
⚠️ Requires special inks or vinyl wrap
Weight (per m²) ~650 g
~800 g
~1,200 g
~400 g
Reusability ✅ 50+ cycles typical
❌ 1–3 cycles before fibre degradation
✅ 20+ cycles
❌ Cracks after 2–3 uses
Outdoor Lifespan 6–12 months (short-term)
1–4 weeks before warping/softening
2–5 years
2–8 weeks before UV degradation
Resistencia química ✅ Resists acids, alkalis, oils
❌ Degraded by moisture & most chemicals
✅ Good
❌ Dissolved by solvents
Reciclabilidad ✅ PP code 5—widely recycled
✅ Paper—widely recycled
⚠️ PVC recycling limited
⚠️ PS code 6—limited facilities
Coste por m² Medium
Bajo
High
Low–Medium
Custom Fabrication ✅ Cut, fold, die-cut, weld
✅ Cut, fold, glue
⚠️ Requires heat bending
⚠️ Hot-wire cutting only
Key Takeaway: For applications requiring the print quality of PVC at the weight and cost of cardboard—particularly real estate signs, exhibition graphics, and reusable packaging dividers—the 5mm corona-treated polypropylene sheet is the only material that delivers on all three criteria simultaneously.
5MM Polypropylene Sheet