Polypropylene corrugated sheets for packaging inserts, signage, agriculture, and industrial dividers. 2–12mm. UV-stabilized. 0% anti-dumping duty (Thailand-manufactured).
Standard sheet sizes with custom cut available. Specify thickness, density, color, and UV rating at quote stage.
| Thickness | Weight (g/m²) | Standard Sheet Size | Common Use |
|---|---|---|---|
| 2mm | 400–600 | 1220 × 2440mm | Lightweight inserts, dividers, mailers |
| 3mm | 600–900 | 1220 × 2440mm | Signage, retail displays, packaging |
| 4mm | 800–1000 | 1220 × 2440mm | Reusable packaging, protective dividers |
| 5mm | 900–1100 | 1220 × 2440mm | Agriculture crates, structural panels |
| 6mm | 1100–1400 | 1220 × 2440mm | Heavy-duty packaging, industrial dividers |
| 8mm | 1400–1700 | 1220 × 2440mm | Cold-chain boxes, returnable containers |
| 10mm | 1700–2000 | 1220 × 2440mm | Pallet bases, structural floor protection |
| 12mm | 2000–2400 | 1220 × 2440mm | Heavy industrial, floor panels, load boards |
Layer pads, cell dividers, corner protectors, and slip sheets. Cut to exact box interior dimensions. Lightweight, reusable, no moisture absorption.
4mm corrugated flute is the standard substrate for yard signs, political signs, and retail POP displays. Full-color print direct or print-and-apply.
Fluted sheets for seedling trays, greenhouse cladding, and produce box blanks. UV-stabilized grades rated for 3–5 years outdoor exposure.
Floor protection panels, surface guards, and temporary walkways during construction. 6–10mm sheets resist foot traffic, carts, and light equipment.
Insulated panel liners, cold room dividers, and refrigerated display inserts. PP retains structural integrity from −40°F to 212°F.
Parts tray liners, pallet separators, and component packaging. Chemical-resistant surface handles oils, solvents, and cleaning agents without degradation.
PP corrugated sheet weighs 70–80% less than solid PP sheet of equivalent thickness. The fluted structure provides disproportionate rigidity relative to weight — ideal for packaging and signage where every gram of freight cost matters.
Polypropylene corrugated sheet (also sold under trade names Coroplast, Correx, Twinplast, and Corriflute) is a twin-wall extruded polypropylene board with internal flutes running parallel to the sheet length. The fluted core delivers exceptional rigidity-to-weight ratio compared to any other plastic sheet product at equivalent thickness.
| Property | Value | Test Standard |
|---|---|---|
| Density | 0.90–0.91 g/cm³ | ISO 1183 |
| Tensile Strength | 25–35 MPa (MD) | ISO 527 |
| Flexural Modulus | 900–1,200 MPa | ISO 178 |
| Operating Temperature | −40°C to +120°C | — |
| UV Stabilization | Standard / Premium (3–5 yr outdoor) | ISO 4892-2 |
| Water Absorption | <0.01% | ISO 62 |
| Flammability | Standard or FR (UL94 V-0) | UL 94 |
| Recyclability | 100% (PP resin code #5) | — |
Choosing the wrong thickness is the most common error in corrugated plastic sheet sourcing. Undersized sheets flex and deform under load; oversized sheets add unnecessary freight cost. Use this guide as a starting point — for structural or load-bearing applications, always prototype before committing to full production quantity.
Mailer inserts, catalog dividers, election leaflet backing, lightweight point-of-purchase trays. Not suitable for any structural or load-bearing use.
Yard signs, real estate signs, political campaign signs, indoor POS displays. The industry-standard substrate for 4-color print-and-display applications.
Part dividers, returnable trays, automotive component packaging. Handles 20–50 trip cycles. The most commonly specified corrugated plastic sheet gauge globally.
Seedling flat bases, greenhouse wall panels, cold room shelf liners, corrugated plastic box blanks. Adequate compression strength for single-stack pallet configurations.
Heavy-duty packaging inserts, industrial cell dividers, pallet layer pads for components over 10kg per cell. Standard gauge for automotive OEM returnable packaging.
Pallet bases, floor protection panels, cold-chain box side walls, structural load boards. 12mm is the maximum standard gauge; custom laminated configurations available beyond 12mm.
All Elipacko PP corrugated sheets are manufactured in Thailand with 0% anti-dumping duty on US imports. Every order can be customized at the extrusion stage — not as an aftermarket process — which ensures color, surface texture, and UV additive are integral to the sheet, not a coating that can scratch or peel.
Coroplast is a brand name for corrugated polypropylene sheet, the same material as "PP corrugated sheet," "Correx," "Twinplast," and "Corriflute." All are twin-wall extruded PP board with internal flutes. The material is identical; the trade names differ by manufacturer and region. Elipacko manufactures to the same specifications as branded alternatives at significantly lower cost due to Thailand manufacturing and 0% anti-dumping duty.
Standard colors (black, white, grey) at standard sizes: 100 sheets minimum. Custom colors, custom sizes, and specialty grades (FR, anti-static, food-grade): 500 sheets minimum per SKU. Full container (FCL) orders receive best pricing — approximately 8,000–12,000 standard sheets per 20' container depending on thickness. Sample orders of 5–10 sheets are available for qualification before committing to production.
Yes. Elipacko's food-contact grade PP corrugated sheets comply with FDA 21 CFR 177.1520 (indirect food contact) and EU Regulation 10/2011 (plastic materials in contact with food). These grades use virgin PP resin with food-approved colorants and UV stabilizers. They are widely used in produce packaging, seafood boxes, poultry trays, and cold-chain containers. Non-food-contact grades use recycled PP content and are not appropriate for direct food contact applications.
Standard UV-stabilized grade: 12–18 months outdoor exposure at full sun in temperate climates before significant brittling. Premium UV grade: 3–5 years. PP degrades under UV exposure — for permanent outdoor structural applications, HDPE or polycarbonate is more appropriate. For temporary outdoor signage (real estate, events, political campaigns), 3mm standard UV grade is adequate for a 6–12 month campaign life.
Yes. PP corrugated sheet can be scored and folded cold for simple box blanks and trays. For curved or complex shapes, the sheet can be heat-formed at 150–160°C — the flute structure partially collapses during forming, which reduces panel rigidity in the bent zone. For structural curved parts, solid PP sheet or HDPE is more appropriate. Elipacko can produce flat sheet blanks scored and perforated ready for fold-and-glue box assembly.
Standard color and size: 15–21 days production + transit. Custom color or grade: 21–35 days production + transit. Sea freight from Thailand to US West Coast: 18–22 days. Air freight available for urgent orders — typically 5–7 days delivery. Full container orders are eligible for faster production scheduling. Contact our team for exact lead times on your specific quantity and specification.
PP corrugated sheets are the raw material. These finished products are manufactured from the same base material — ideal for buyers who need assembled packaging solutions: