{"id":3856,"date":"2024-12-09T07:21:35","date_gmt":"2024-12-09T07:21:35","guid":{"rendered":"https:\/\/ppboxy.com\/?post_type=product&p=3856"},"modified":"2026-07-01T06:58:38","modified_gmt":"2026-07-01T06:58:38","slug":"pp-hollow-board","status":"publish","type":"product","link":"https:\/\/ppboxy.com\/zh\/product\/pp-hollow-board\/","title":{"rendered":"PP\u4e2d\u7a7a\u677f"},"content":{"rendered":"

Why PP Hollow Board Dominates Signage & Display<\/h2>\n

PP hollow board \u2014 also known as corrugated plastic board<\/strong>, Coroplast<\/strong>, Correx<\/strong>, or fluted polypropylene sheet<\/strong> \u2014 is the world’s most widely used substrate for temporary and semi-permanent signage. Its twin-wall hollow structure delivers a stiffness-to-weight ratio 5\u00d7 better than solid plastic, while costing 40\u201360% less per square meter.<\/p>\n

From real estate yard signs to trade show displays, construction safety boards to retail point-of-sale materials, PP hollow board has replaced corrugated cardboard, foam board, and PVC in virtually every short-to-medium-term signage application. Here is why \u2014 and how to choose the right type for your project.<\/p>\n

Three Forms of PP Hollow Board \u2014 And Where Each One Leads<\/h3>\n

The term “PP hollow board” covers three distinct product categories. If you are evaluating options, understanding these categories will save you time and prevent ordering the wrong product:<\/p>\n\n\n\n\n\n\n\n
Product Category<\/th>\nWhat You Need It For<\/th>\nGo To<\/th>\n<\/tr>\n<\/thead>\n
Functional Sign Boards<\/strong><\/td>\nSafety signs, real estate signs, road & construction signs, directional signage \u2014 where regulations (OSHA, MUTCD, ISO 7010) apply<\/td>\nPP Sign Boards \u2192<\/a><\/td>\n<\/tr>\n
Commercial Display Sheets<\/strong><\/td>\nOutdoor advertising, retail POP displays, event & trade show graphics, promotional banners \u2014 where visual impact drives sales<\/td>\nWeatherproof Display Sheets \u2192<\/a><\/td>\n<\/tr>\n
Industrial Special-Grade Boards<\/strong><\/td>\nAnti-static packaging, conductive electronics trays, flame-retardant construction partitions \u2014 where electrical or fire safety is required<\/td>\nPP Hollow Board \u2014 Industrial Grade \u2192<\/a><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Quick rule:<\/strong> If your sign must comply with regulations \u2192 PP \u6807\u724c<\/a>. If your display must attract customers \u2192 \u9632\u98ce\u96e8\u663e\u793a\u677f<\/a>. If you need ESD protection or fire rating \u2192 Industrial Grade Board<\/a>. Still unsure? Read on \u2014 this page covers the shared properties, material comparisons, and printing options that apply to all three.<\/p>\n

Board vs Sheet \u2014 What is the Difference?<\/h3>\n

You will see both “PP hollow board<\/strong>” and “PP hollow sheet<\/strong>” used interchangeably \u2014 but there is a practical distinction that matters for buyers:<\/p>\n\n\n\n\n\n\n\n\n\n
Dimension<\/th>\nPP\u4e2d\u7a7a\u677f<\/th>\nPP\u4e2d\u7a7a\u677f<\/th>\n<\/tr>\n<\/thead>\n
Buyer Intent<\/strong><\/td>\n“I need a board for a sign\/display project”<\/td>\n“I need sheet material for cutting, fabricating, or converting”<\/td>\n<\/tr>\n
Typical Buyer<\/strong><\/td>\nSign shops, ad agencies, real estate brokers<\/td>\nPackaging converters, factory procurement<\/td>\n<\/tr>\n
Primary Use<\/strong><\/td>\nFinished signage & display end-products<\/td>\nRaw material for further processing<\/td>\n<\/tr>\n
Order Volume<\/strong><\/td>\n50\u2013500 sheets per order<\/td>\n500\u201310,000+ sheets per order<\/td>\n<\/tr>\n
Key Decisions<\/strong><\/td>\nPrinting method, thickness for wind load, reflectivity<\/td>\nSheet size, thickness, density, food-grade certification<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Need raw sheet material in standard 4\u00d78 ft sizes for packaging, construction, or automotive? See our PP Hollow Sheet \u2014 4\u00d78 Twin-Wall Board<\/a> page.<\/p>\n

\"PP<\/p>\n

Sign Board, Display Sheet & Industrial Board \u2014 Which Do You Need?<\/h2>\n

Most buyers who search “PP hollow board” are actually looking for one of three specific products. The comparison below helps you identify the right category \u2014 and the right PPBOXY product page \u2014 in under 60 seconds:<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n
Dimension<\/th>\nPP Sign Board<\/th>\nWeatherproof Display Sheet<\/th>\nIndustrial Board<\/th>\n<\/tr>\n<\/thead>\n
Primary Purpose<\/strong><\/td>\nConvey information (safety, direction, property listing)<\/td>\nAttract attention (ads, promotions, branding)<\/td>\nMeet technical specs (ESD, fire, chemical resistance)<\/td>\n<\/tr>\n
Compliance Driven?<\/strong><\/td>\nYes \u2014 OSHA, MUTCD, ISO 7010, EN 12899<\/td>\nNo \u2014 driven by visual quality & durability<\/td>\nYes \u2014 UL94, IEC 61340, EN 13501<\/td>\n<\/tr>\n
Printing Priority<\/strong><\/td>\nHigh-contrast text & symbols<\/td>\nFull-bleed photo-quality graphics<\/td>\nOften unprinted \u2014 structural use<\/td>\n<\/tr>\n
Reflective Options<\/strong><\/td>\nYes \u2014 ASTM D4956 Type I \/ III \/ XI<\/td>\nNot required<\/td>\nNot required<\/td>\n<\/tr>\n
Typical Thickness<\/strong><\/td>\n3\u20135 mm<\/td>\n3\u20135 mm<\/td>\n3\u201310 mm<\/td>\n<\/tr>\n
Wind Load Rating<\/strong><\/td>\nCritical \u2014 freestanding signs need rigidity<\/td>\nImportant \u2014 but often mounted on structures<\/td>\nVaries \u2014 partition walls need max rigidity<\/td>\n<\/tr>\n
Special Grades<\/strong><\/td>\nCorona-treated for ink adhesion<\/td>\nCorona-treated for ink adhesion<\/td>\nAnti-static (10\u2079\u201310\u00b9\u00b9 \u03a9\/sq), conductive (10\u2074\u201310\u2076 \u03a9\/sq), flame-retardant (UL94 V-0)<\/td>\n<\/tr>\n
PPBOXY Page<\/strong><\/td>\nPP \u6807\u724c<\/a><\/td>\n\u9632\u98ce\u96e8\u663e\u793a\u677f<\/a><\/td>\nIndustrial Grade Board<\/a><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

PP Hollow Board vs Alternative Materials<\/h3>\n

PP hollow board is not the only option for signage and displays. Here is how it compares to the four most common alternatives:<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n
Property<\/th>\nPP\u4e2d\u7a7a\u677f<\/th>\nCorrugated Cardboard<\/th>\nPVC Foamex<\/th>\nACM (Aluminium Composite)<\/th>\nFoam Board (Gatorboard)<\/th>\n<\/tr>\n<\/thead>\n
\u9632\u6c34<\/strong><\/td>\n\u2705 Yes<\/td>\n\u274c No \u2014 swells & collapses<\/td>\n\u2705 Yes<\/td>\n\u2705 Yes<\/td>\n\u274c No \u2014 foam core absorbs moisture<\/td>\n<\/tr>\n
Outdoor Life<\/strong><\/td>\n2\u20135+ years<\/td>\n1\u20132 weeks<\/td>\n5\u201310 years<\/td>\n10+ years<\/td>\nIndoor only<\/td>\n<\/tr>\n
Weight (4 mm)<\/strong><\/td>\n~0.6 kg\/m\u00b2<\/td>\n~0.5 kg\/m\u00b2<\/td>\n~3.0 kg\/m\u00b2 (5\u00d7 heavier)<\/td>\n~5.5 kg\/m\u00b2 (9\u00d7 heavier)<\/td>\n~1.2 kg\/m\u00b2<\/td>\n<\/tr>\n
Print Quality<\/strong><\/td>\nGood \u2014 corona treated<\/td>\nGood \u2014 but smears in rain<\/td>\nExcellent \u2014 smooth surface<\/td>\nExcellent \u2014 vinyl wrap<\/td>\nExcellent \u2014 photo mount<\/td>\n<\/tr>\n
Impact Resistance<\/strong><\/td>\nHigh \u2014 hollow channels absorb<\/td>\nLow \u2014 dents easily<\/td>\nMedium \u2014 brittle in cold<\/td>\nHigh \u2014 rigid core<\/td>\nLow \u2014 foam crushes<\/td>\n<\/tr>\n
\u53ef\u56de\u6536<\/strong><\/td>\n\u2705 PP #5<\/td>\n\u2705 Paper<\/td>\n\u26a0\ufe0f Difficult \u2014 PVC<\/td>\n\u26a0\ufe0f Mixed materials<\/td>\n\u274c Foam + paper<\/td>\n<\/tr>\n
Best For<\/strong><\/td>\nYard signs, construction boards, retail displays, short-term outdoor<\/td>\nIndoor packaging, one-time use<\/td>\nPermanent indoor signage, shop fittings<\/td>\nBuilding fascia, permanent outdoor signage<\/td>\nIndoor presentations, mockups<\/td>\n<\/tr>\n
Break-Even vs Cardboard<\/strong><\/td>\n3\u20135 reuses<\/td>\n\u2014<\/td>\n\u2014<\/td>\n\u2014<\/td>\n\u2014<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Bottom line:<\/strong> PP hollow board is the best choice when you need outdoor durability at an affordable price point<\/em>. It fills the gap between cheap-but-disposable cardboard and expensive-but-permanent PVC\/ACM \u2014 and pays for itself after just 3\u20135 reuses compared to cardboard.<\/p>\n

<\/div>\n

\"PP<\/p>\n

<\/div>\n

Standard Specifications<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Specification<\/th>\nDetail<\/th>\n<\/tr>\n<\/thead>\n
\u6750\u6599<\/td>\nPolypropylene Copolymer (PP)<\/td>\n<\/tr>\n
\u7ed3\u6784<\/td>\nTwin-wall hollow chamber with internal ribs<\/td>\n<\/tr>\n
Standard Sheet Size<\/td>\n1220 \u00d7 2440 mm (4\u00d78 ft)<\/td>\n<\/tr>\n
Custom Sheet Size<\/td>\nUp to 2100 \u00d7 6000 mm<\/td>\n<\/tr>\n
\u539a\u5ea6\u9009\u9879<\/td>\n2, 3, 4, 5, 6, 8, 10, 12 mm<\/td>\n<\/tr>\n
Weight (4 mm, 4\u00d78)<\/td>\n~1.78 kg per sheet<\/td>\n<\/tr>\n
Weight (5 mm, 4\u00d78)<\/td>\n~2.22 kg per sheet<\/td>\n<\/tr>\n
Density Range<\/td>\n0.55\u20130.85 g\/cm\u00b3 (varies by thickness)<\/td>\n<\/tr>\n
Corona Treatment<\/td>\n\u2265 38 dyne (both sides, standard)<\/td>\n<\/tr>\n
Surface Finish<\/td>\nMatte (standard), Glossy (optional)<\/td>\n<\/tr>\n
Color \u2014 Standard<\/td>\nWhite, Black<\/td>\n<\/tr>\n
Color \u2014 Custom<\/td>\nYellow, Blue, Red, Green + Pantone match<\/td>\n<\/tr>\n
UV Resistance (Standard)<\/td>\n2\u20133 years outdoor<\/td>\n<\/tr>\n
UV Resistance (Extended)<\/td>\n5+ years outdoor (+15\u201325% premium)<\/td>\n<\/tr>\n
Operating Temperature<\/td>\n-20\u00b0C to +80\u00b0C<\/td>\n<\/tr>\n
Water Absorption<\/td>\n< 0.01%<\/td>\n<\/tr>\n
Tensile Strength<\/td>\n\u2265 18 MPa (MD), \u2265 16 MPa (TD)<\/td>\n<\/tr>\n
Impact Strength<\/td>\n\u2265 10 kJ\/m\u00b2<\/td>\n<\/tr>\n
Flame Rating<\/td>\nHB (standard); V-0 available (FR grade)<\/td>\n<\/tr>\n
Printing Methods<\/td>\nUV flatbed, screen, CMYK digital, vinyl overlay<\/td>\n<\/tr>\n
Certifications<\/td>\nISO 9001, REACH, RoHS<\/td>\n<\/tr>\n
\u53ef\u56de\u6536\u6027<\/td>\n100% \u53ef\u56de\u6536\uff08PP #5\uff09<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Features That Matter for Signs and Displays<\/h2>\n

Corona Treatment & Five Printing Methods<\/h3>\n

All PPBOXY hollow boards for signage undergo corona treatment<\/strong> (dyne level \u2265 38) during extrusion, which modifies the polypropylene surface to accept ink adhesion. Without corona treatment, PP is naturally non-polar and ink will not bond \u2014 this is the single most important specification for any sign or display application.<\/p>\n\n\n\n\n\n\n\n\n\n
Printing Method<\/th>\nBest For<\/th>\nMax Resolution<\/th>\nMin Order<\/th>\nLead Time<\/th>\n<\/tr>\n<\/thead>\n
UV Flatbed Digital<\/td>\nFull-bleed photos, gradient graphics, short runs<\/td>\n1440 dpi<\/td>\n1 sheet<\/td>\n1\u20133 days<\/td>\n<\/tr>\n
Screen Printing<\/td>\nSolid colors, bold text, high-volume yard signs<\/td>\n80\u2013100 lpi<\/td>\n100 sheets<\/td>\n5\u20137 days<\/td>\n<\/tr>\n
CMYK Digital<\/td>\nPhoto-quality prints, medium runs<\/td>\n1200 dpi<\/td>\n10 sheets<\/td>\n2\u20134 days<\/td>\n<\/tr>\n
Vinyl Overlay<\/td>\nReplaceable graphics on permanent boards<\/td>\nN\/A (vinyl print)<\/td>\n1 sheet<\/td>\n3\u20135 days<\/td>\n<\/tr>\n
Hand-Painted \/ Stenciled<\/td>\nCustom one-off signs, job site markings<\/td>\nN\/A<\/td>\n1 sheet<\/td>\nSame day<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

UV Stability & Outdoor Lifespan<\/h3>\n

PP hollow board includes UV stabilizers that prevent yellowing and embrittlement. The lifespan depends on the UV formulation you select:<\/p>\n\n\n\n\n\n\n
UV Grade<\/th>\nOutdoor Lifespan<\/th>\nBest For<\/th>\nPrice Premium<\/th>\n<\/tr>\n<\/thead>\n
Standard<\/td>\n2\u20133 years<\/td>\nYard signs, construction boards, event displays<\/td>\nBase price<\/td>\n<\/tr>\n
Extended<\/td>\n5+ years<\/td>\nPermanent outdoor signs, building directories<\/td>\n+15\u201325%<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Wind Load & Rigidity by Thickness<\/h3>\n

For freestanding signs (yard signs, A-frames, construction site boards), wind load resistance is critical. The hollow rib structure provides stiffness, but thickness matters:<\/p>\n\n\n\n\n\n\n\n\n
\u539a\u5ea6<\/th>\nMax Freestanding Sign Area<\/th>\nWind Resistance<\/th>\nRecommended Use<\/th>\n<\/tr>\n<\/thead>\n
3 mm<\/td>\n\u2264 0.5 m\u00b2 (18\u00d724 in)<\/td>\nModerate \u2014 flexes in wind<\/td>\nSmall yard signs, indoor displays<\/td>\n<\/tr>\n
4 mm<\/td>\n\u2264 1.0 m\u00b2 (24\u00d736 in)<\/td>\nGood \u2014 standard for yard signs<\/td>\nStandard yard signs, A-frame inserts<\/td>\n<\/tr>\n
5 mm<\/td>\n\u2264 1.5 m\u00b2 (36\u00d748 in)<\/td>\nVery good \u2014 resists deformation<\/td>\nLarge freestanding signs, double-sided<\/td>\n<\/tr>\n
8\u201310 mm<\/td>\n\u2264 3.0 m\u00b2 (48\u00d796 in)<\/td>\nExcellent \u2014 near-rigid<\/td>\nBillboard substrates, construction hoardings<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

For signs in high-wind regions (coastal, mountain, open plains), consider adding an aluminium frame or selecting 5 mm+ thickness. See our PP \u6807\u724c<\/a> page for wind load calculations by sign type.<\/p>\n

\u81ea\u5b9a\u4e49\u9009\u9879<\/h3>\n

PPBOXY offers full customization for signage and display hollow boards:<\/p>\n\n\n\n\n\n\n\n\n\n\n
Custom Option<\/th>\nAvailable Choices<\/th>\nMOQ for Custom<\/th>\n<\/tr>\n<\/thead>\n
Sheet Size<\/td>\nAny dimension up to 2100 \u00d7 6000 mm<\/td>\n100 sheets<\/td>\n<\/tr>\n
\u539a\u5ea6<\/td>\n2, 3, 4, 5, 6, 8, 10, 12 mm<\/td>\n200 sheets<\/td>\n<\/tr>\n
\u989c\u8272<\/td>\nWhite, black, yellow, blue, red, green + custom Pantone<\/td>\n500 sheets (custom Pantone)<\/td>\n<\/tr>\n
\u6253\u5370<\/td>\nSingle-side, double-side, edge-to-edge<\/td>\n1 sheet (UV flatbed) \/ 100 (screen)<\/td>\n<\/tr>\n
Surface Treatment<\/td>\nCorona (standard), anti-scratch laminate, matte\/glossy<\/td>\n200 sheets<\/td>\n<\/tr>\n
Cutting<\/td>\nDie-cut to shape, CNC routed, scored-and-folded<\/td>\n100 sheets<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Cost-per-Use vs Cardboard & Foam Board<\/h3>\n

While PP hollow board costs 3\u20135\u00d7 more upfront than corrugated cardboard, it becomes the cheaper option after just a few reuses:<\/p>\n\n\n\n\n\n\n\n
\u6750\u6599<\/th>\nCost per Sheet<\/th>\nTypical Uses Before Replacement<\/th>\nCost per Use<\/th>\n<\/tr>\n<\/thead>\n
Corrugated Cardboard<\/td>\n$0.50\u20131.50<\/td>\n1 use (outdoor)<\/td>\n$0.50\u20131.50<\/td>\n<\/tr>\n
Foam Board (Gatorboard)<\/td>\n$3.00\u20136.00<\/td>\n1\u20132 uses (indoor only)<\/td>\n$1.50\u20136.00<\/td>\n<\/tr>\n
PP\u4e2d\u7a7a\u677f<\/td>\n$2.00\u20134.00<\/td>\n50\u2013100+ uses<\/td>\n$0.02\u20130.08<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

After 3 reuses<\/strong>, PP hollow board is already cheaper than single-use cardboard. After 50 reuses<\/strong> (typical for indoor signage rotations), the cost-per-use drops to under $0.08 \u2014 making it the most economical choice for any business that changes displays regularly.<\/p>\n

\"PP<\/p>\n

Applications Across Signage & Display Industries<\/h2>\n

Real Estate & Property Signs<\/h3>\n

PP hollow board is the industry standard for real estate yard signs worldwide. 4 mm corona-treated white board with UV digital or screen printing delivers vibrant, weather-resistant “FOR SALE” \/ “FOR RENT” \/ “OPEN HOUSE” signs that last 2\u20133 years outdoors. Double-sided printing captures traffic from both directions. See our PP \u6807\u724c<\/a> for reflective options required by some municipalities.<\/p>\n

Retail POP Displays & Event Signage<\/h3>\n

For point-of-sale stands, shelf talkers, trade show backdrops, and event wayfinding, PP hollow board offers the best balance of print quality, portability, and cost. Sheets can be die-cut into custom shapes (arrows, product silhouettes, stand-up easels) and packed flat for transport to events. Corona-treated surfaces accept UV-cured inks for scratch-resistant graphics that survive multi-day exhibitions.<\/p>\n

Construction & Safety Signage<\/h3>\n

Construction sites, road works, and industrial facilities require safety signage that withstands dust, rain, UV, and impact. PP hollow board is specified by OSHA (US), HSE (UK), and ISO 7010 standards for temporary safety signs. Flame-retardant grades (UL94 V-0) are available for sites with fire safety requirements. See our PP \u6807\u724c<\/a> for compliance details.<\/p>\n

Advertising & Promotional Campaigns<\/h3>\n

For seasonal advertising \u2014 holiday promotions, sale events, product launches \u2014 PP hollow board is the only substrate that survives outdoor campaigns without the premium cost of PVC Foamex or ACM. Lightweight enough for temporary mounting on fences, walls, and A-frames, yet rigid enough to maintain a professional appearance in wind and rain. See our \u9632\u98ce\u96e8\u663e\u793a\u677f<\/a> for extended-life outdoor advertising options.<\/p>\n

\u5e38\u89c1\u95ee\u9898\u89e3\u7b54<\/h2>\n

What is PP hollow board used for?<\/h3>\n

PP hollow board is primarily used for signage and display applications \u2014 including real estate yard signs, retail POP displays, construction safety boards, trade show graphics, and advertising campaign materials. Its twin-wall hollow structure provides excellent stiffness at very low weight, making it easy to install and transport. It is also used for secondary applications like foldable containers, recycle bins, and protective packaging. For industrial applications (anti-static, conductive, flame-retardant), see our PP Hollow Board \u2014 Industrial Grade.<\/p>\n

What is the difference between PP hollow board and PP hollow sheet?<\/h3>\n

“PP hollow board” and “PP hollow sheet” refer to the same material, but signal different buyer intents. “Board” typically means you want a finished or semi-finished panel for a signage or display project \u2014 you are deciding on printing, thickness for wind load, and reflectivity. “Sheet” typically means you want raw material for cutting, fabricating, or converting \u2014 you are deciding on sheet size, density, and certification. PPBOXY’s hollow board page (this page) focuses on signage & display applications; our hollow sheet page focuses on multi-industrial use with standard 4\u00d78 ft stock sizes.<\/p>\n

Is PP hollow board the same as Coroplast or Correx?<\/h3>\n

Yes. “Coroplast” is a US trade name (registered trademark), “Correx” is a UK trade name, and “PP hollow board” is the generic term. Other regional names include “fluted polypropylene sheet” (EU\/Australia), “corriboard” (Ireland), and “carton plast” (Germany). They all refer to twin-wall corrugated polypropylene panels. The material is identical \u2014 only the name varies by market. PPBOXY manufactures and sells all grades under the generic “PP hollow board” name.<\/p>\n

How long does a PP hollow board sign last outdoors?<\/h3>\n

Standard UV-stabilized PP hollow board lasts 2\u20133 years outdoors without significant fading, yellowing, or embrittlement. Extended-life UV formulations are available for 5+ years. In practice, the sign’s lifespan is often determined by the printing rather than the board \u2014 UV-cured inks can last 3\u20135 years, while non-UV inks may fade in 6\u201312 months. For permanent outdoor signage (10+ years), consider PVC Foamex or aluminium composite material instead.<\/p>\n

Can PP hollow board be printed on both sides?<\/h3>\n

Yes. PP hollow board accepts single-sided and double-sided printing. Corona treatment (dyne \u2265 38) is applied to both sides during extrusion. Double-sided printing is standard for real estate signs (different agents on each side) and A-frame inserts. UV flatbed printing and screen printing both support double-sided output. The opaque twin-wall structure prevents show-through between sides.<\/p>\n

What thickness of PP hollow board should I use for signs?<\/h3>\n

For small yard signs (up to 18\u00d724 in \/ 45\u00d760 cm), 3\u20134 mm is sufficient. For medium signs (24\u00d736 in \/ 60\u00d790 cm) and A-frame inserts, 4\u20135 mm is standard. For large freestanding signs, construction hoardings, or high-wind regions, use 5\u201310 mm. Thicker boards resist wind deformation and can span larger areas without additional framing. See the Wind Load & Rigidity table on this page for detailed recommendations.<\/p>\n

How does PP hollow board compare to cardboard for signage?<\/h3>\n

PP hollow board is waterproof (cardboard collapses in rain), 20\u201330\u00d7 more durable (cardboard degrades after 1 use outdoors vs 50\u2013100+ for PP), and fully recyclable. While PP costs 3\u20135\u00d7 more upfront, it pays for itself after just 3 reuses. For one-time indoor events, cardboard may be sufficient. For any outdoor or multi-use application, PP hollow board is the industry standard and the more economical choice over time.<\/p>\n

\u5e38\u89c1\u95ee\u9898\u89e3\u7b54<\/h2>\n

What is PP hollow board used for?<\/h3>\n

PP hollow board is primarily used for signage and display applications \u2014 including real estate yard signs, retail POP displays, construction safety boards, trade show graphics, and advertising campaign materials. Its twin-wall hollow structure provides excellent stiffness at very low weight, making it easy to install and transport. It is also used for secondary applications like foldable containers, recycle bins, and protective packaging. For industrial applications (anti-static, conductive, flame-retardant), see our PP Hollow Board \u2014 Industrial Grade.<\/p>\n

What is the difference between PP hollow board and PP hollow sheet?<\/h3>\n

“PP hollow board” and “PP hollow sheet” refer to the same material, but signal different buyer intents. “Board” typically means you want a finished or semi-finished panel for a signage or display project \u2014 you are deciding on printing, thickness for wind load, and reflectivity. “Sheet” typically means you want raw material for cutting, fabricating, or converting \u2014 you are deciding on sheet size, density, and certification. PPBOXY’s hollow board page (this page) focuses on signage & display applications; our hollow sheet page focuses on multi-industrial use with standard 4\u00d78 ft stock sizes.<\/p>\n

Is PP hollow board the same as Coroplast or Correx?<\/h3>\n

Yes. “Coroplast” is a US trade name (registered trademark), “Correx” is a UK trade name, and “PP hollow board” is the generic term. Other regional names include “fluted polypropylene sheet” (EU\/Australia), “corriboard” (Ireland), and “carton plast” (Germany). They all refer to twin-wall corrugated polypropylene panels. The material is identical \u2014 only the name varies by market. PPBOXY manufactures and sells all grades under the generic “PP hollow board” name.<\/p>\n

How long does a PP hollow board sign last outdoors?<\/h3>\n

Standard UV-stabilized PP hollow board lasts 2\u20133 years outdoors without significant fading, yellowing, or embrittlement. Extended-life UV formulations are available for 5+ years. In practice, the sign’s lifespan is often determined by the printing rather than the board \u2014 UV-cured inks can last 3\u20135 years, while non-UV inks may fade in 6\u201312 months. For permanent outdoor signage (10+ years), consider PVC Foamex or aluminium composite material instead.<\/p>\n

Can PP hollow board be printed on both sides?<\/h3>\n

Yes. PP hollow board accepts single-sided and double-sided printing. Corona treatment (dyne \u2265 38) is applied to both sides during extrusion. Double-sided printing is standard for real estate signs (different agents on each side) and A-frame inserts. UV flatbed printing and screen printing both support double-sided output. The opaque twin-wall structure prevents show-through between sides.<\/p>\n

What thickness of PP hollow board should I use for signs?<\/h3>\n

For small yard signs (up to 18\u00d724 in \/ 45\u00d760 cm), 3\u20134 mm is sufficient. For medium signs (24\u00d736 in \/ 60\u00d790 cm) and A-frame inserts, 4\u20135 mm is standard. For large freestanding signs, construction hoardings, or high-wind regions, use 5\u201310 mm. Thicker boards resist wind deformation and can span larger areas without additional framing. See the Wind Load & Rigidity table on this page for detailed recommendations.<\/p>\n

How does PP hollow board compare to cardboard for signage?<\/h3>\n

PP hollow board is waterproof (cardboard collapses in rain), 20\u201330\u00d7 more durable (cardboard degrades after 1 use outdoors vs 50\u2013100+ for PP), and fully recyclable. While PP costs 3\u20135\u00d7 more upfront, it pays for itself after just 3 reuses. For one-time indoor events, cardboard may be sufficient. For any outdoor or multi-use application, PP hollow board is the industry standard and the more economical choice over time.<\/p>\n

\"PP
PP\u4e2d\u7a7a\u677f<\/figcaption><\/figure>","protected":false},"excerpt":{"rendered":"
    \n
  • \u6750\u6599<\/strong> Polypropylene Copolymer (PP)<\/li>\n
  • \u7ed3\u6784<\/strong> Twin-wall hollow chamber with internal ribs<\/li>\n
  • Standard Sheet Size<\/strong> 1220 \u00d7 2440 mm (4\u00d78 ft)<\/li>\n
  • Custom Sheet Size<\/strong> Up to 2100 \u00d7 6000 mm<\/li>\n
  • \u539a\u5ea6\u9009\u9879<\/strong> 2, 3, 4, 5, 6, 8, 10, 12 mm<\/li>\n<\/ul>\n

    Discover PPBOXY\u2019s PP Hollow Board, a lightweight, UV resistant material perfect for signage, displays, foldable tables, and more. Customizable with high-quality printing for lasting visual impact.<\/p>","protected":false},"featured_media":3863,"comment_status":"open","ping_status":"closed","template":"","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}}},"product_brand":[],"product_cat":[50],"product_tag":[157],"class_list":{"0":"post-3856","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-hollow-sheet","7":"product_tag-pp-hollow-board","8":"desktop-align-left","9":"tablet-align-left","10":"mobile-align-left","12":"first","13":"instock","14":"taxable","15":"shipping-taxable","16":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/ppboxy.com\/zh\/wp-json\/wp\/v2\/product\/3856"}],"collection":[{"href":"https:\/\/ppboxy.com\/zh\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/ppboxy.com\/zh\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/ppboxy.com\/zh\/wp-json\/wp\/v2\/comments?post=3856"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ppboxy.com\/zh\/wp-json\/wp\/v2\/media\/3863"}],"wp:attachment":[{"href":"https:\/\/ppboxy.com\/zh\/wp-json\/wp\/v2\/media?parent=3856"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/ppboxy.com\/zh\/wp-json\/wp\/v2\/product_brand?post=3856"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/ppboxy.com\/zh\/wp-json\/wp\/v2\/product_cat?post=3856"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/ppboxy.com\/zh\/wp-json\/wp\/v2\/product_tag?post=3856"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}