Rigid Corrugated Plastic Sheets Rigid Corrugated Plastic Sheets – Purepack xSend Your Inquiry Today Skip to content Rigid Corrugated Plastic Sheets ManufacturerWholesale rigid corrugated polypropylene sheets are perfect for corrugated plastic signs, plastic layer pads and heavy-duty packaging.Superior Rigidity & Flatness: It is critical for signage and perfect for printing.High Impact Resistance: It is strong enough for heavy-duty packaging.Durable & Protective: Strong, waterproof, and long-lasting.Request a free sample\/Latese priceWhy Choose Our Rigid Corrugated Plastic Sheets?16 Production lines: 30000 tons corrugated plastic sheet\/year13 years experience: Rich experience in service and export.Fully Customizable: Cut to your exact size and shape.Factory Direct Price: No middlemen are earning your fees.Free Samples: Get a fast and free sample in 5-7 days before the formal order.Send Inquiry NowWhat Are The Rigid Corrugated Plastic Sheets?Rigid Corrugated Plastic Sheets are heavy-duty, high-density polypropylene (PP) sheets with a hollow, fluted structure that provides better stiffness and flatness than standard corrugated plastic sheets.You can think of them as the heavy-duty corrugated plastic sheets\u2014 they don\u2019t bend, warp under load, or change shape in different temperatures.Customize Your Rigid Corrugated Plastic SheetsWe have many kinds of rigid corrugated plastic sheet products for customers. Some of the common types our customers use are as follows:Outdoor Corrugated Plastic Yard SignsReal estate signs, political signs, event signage. The rigid sheet won\u2019t warp in the sun or crack when driven into the ground.Send Inquiry NowHigh-Impact Plastic Layer PadsLayer pads between stacked products, pallet dividers, can reduce damage when transporting.Send Inquiry NowHeavy-Duty Corrugated Plastic BoxesIt is specially designed for conditions that need to load heavy goods and repeated handling.Send Inquiry NowCustomize Rigid Corrugated Plastic SheetsWe process high-density and high-strength PP hollow boards into the size, shape, and function you need.Send Inquiry NowKey Features of Rigid Corrugated Plastic Sheets100% WaterproofIt won\u2019t absorb moisture, rot, or mold.Flat & Smooth SurfacePerfect for high-quality printing.Easy to HandleReduces labor and shipping costs.Chemical ResistantSafe for industrial environments.Source Factory Control the Density and FlatnessThe entire process from PP raw materials to extrusion molding is completed in our own factory. We have 16 fully automated rigid corrugated plastic sheet lines, each equipped with an intelligent temperature control system and online thickness detector, controlling the density and thickness errors of the entire board within \u00b1 5%. So we can adjust the density of the board according to your needs (250-3000g\/m \u00b2).And we can control the board\u2019s flatness. Our production line adopts a multi-stage cooling system, which allows the sheet to cool slowly and evenly after extrusion, minimizing internal stress to the greatest extent possible. The board, made this way, is flat when it leaves the factory and remains flat even after one year.Send Inquiry NowModern Equipment Ensures Strong Processing CapabilityWe have 11 sets of high-precision die-cutting forming devices to ensure cutting accuracy; Ultrasonic welding equipment can be used for firm welding of boxes and enclosures; Automatic printing equipment that can print logos on the board directly; Automatic edge banding equipment ensures smooth edges of the board without scratching.This means that you can directly obtain the processed finished products \u2013 cut, welded, and printed \u2013 and use them immediately.Send Inquiry NowWhy You Choose Purepack?As a manufacturer focusing on rigid corrugated plastic sheets, We have over 260 skilled employees and our currugated plastic products are exported to more than 120 countries, we have absolute control over the quality and the delivery time.We have strong customization ability, the thickness range: 1.2mm to 12mm, maximum width: 2500mm, special functions: anti-static, flame retardant, UV resistant, etc. With certification of ISO9001, ISO14001, SGS, FDA, TUV, and ROHS.Good service, providing support for you: we offer design support, 24-hour communication, and on-time delivery, any time if you have any requirements pls contact us!We Have Many Types of Rigid Corrugated Plastic SheetsSome of our cases are as follows:Custom Yard Signs for Election Campaign4mm rigid corrugated plastic sheet, digitally printed, used for outdoor political signs.Get instant QuoteSend Your Inquiry NowHeavy-Duty Logistics & Factory Turnover BoxesFor moving parts between production lines, storing tools, and in-plant transport.Get instant QuoteSend Your Inquiry NowGet an Instant Quote Now Are You Ready to Customize Your Rigid Corrugated Plastic Sheets?Get a custom quote for your perfect rigid corrugated plastic sheets. Customized colors and thicknesses are accepted.Request a Free Sample \/ Get Your QuoteTechnical DataCustomer GalleryQuality CertificationFactory GalleryProduct NameRigid Corrugated Plastic SheetsTypical Thick2mm, 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, or customizedDensity280-3500GSMSurfaceFlat, smooth, glossySpecial treatmentAnti-static, Conductive, Flame Retardant (UL94 V-0), UV Stabilized.ColorBlack, or customizedPackagingFilm ordinary packing or according to the customer\u2019s requirementsCertificateISO9001, ISO14001, SGS, TUV, ROHSMOQ1000 pieces Testimonials\u201cWe switched to Purepack\u2019s rigid corrugated plastic sheets. They stay flat in the sun, the print quality is perfect, and they don\u2019t crack when we drive them into the ground. We\u2019ve cut our reprint rate by 80%.\u201dMark JohnsonOwner, USA\u201cOur old cardboard boxes couldn\u2019t handle the weight of our steel stampings. Purepack\u2019s rigid corrugated plastic boxes are strong enough to be stacked in three layers, they can be folded flat for return shipping, and they\u2019ve already paid for themselves in reduced waste and labor costs.\u201dJames PetersonSupply Chain Director, USAAre your boards suitable for printing and what printing methods are available?We use watercolor block printing and screensilk screen printing with a fully automatic color printing process, to achieve better printing effects.At the same time, our board has good flatness, corona treatment, surface energy value can reach 50-54mN\/m, has a good ink adhesion, and high printing quality.Does different colors affect the performance of the board?White and light colored rigid corrugated plastic boards require additional UV stabilizers for outdoor use; Black board itself has better weather resistance and UV resistance, especially suitable for outdoor signage and long-term exposure scenarios.How to handle the edges of the processed board? Will it cut hand?The edge of the standard rigid corrugated plastic board has been chamfered without cutting hands; If you need ultra smooth edges, you can choose edge banding service.Deep Analysis of Rigid corrugated plastic sheetsDo you know rigid corrugated plastic sheet? How does the rigidity of this board come about? What key indicators should I focus on in different application scenarios? What factors can affect performance during long-term use?In this article, we will discuss from these professional perspectives. The source of rigidity: it\u2019s not just about \u201cthickening.\u201dMany people think that rigid corrugated plastic sheets are just a slightly thicker ordinary hollow board. It\u2019s actually not that simple. Rigidity is determined by three factors:1. The density of the raw material The density of ordinary hollow boards is usually between 250 and 700g\/m \u00b2, while the density of rigid boards can reach 700 and 3000g\/m \u00b2. The higher the density, the more polypropylene molecules per unit area, and the harder and more pressure-resistant the board naturally becomes.The key point is: not all manufacturers can produce high-density boards always. The higher the density, the higher the requirements for the extrusion effect \u2013 temperature range, screw speed, and cooling speed. Any problem in any link can result in uneven density of the board and local softening or warping.2. Corrugated structureThe \u201cI-shaped\u201d or \u201cM-shaped\u201d structure of corrugated board is another source of rigidity. It likes I-beams in architecture \u2013 achieving maximum bending strength.But the corrugated structures of different manufacturers are different:Ordinary corrugated: large spacing, thin wall, average rigidityTight corrugated: small spacing, thick wall, stronger rigidityStrengthening rib corrugated: adding reinforcing ribs at key stress points, suitable for load-bearing scenarios3. Molding processThe rigidity of the board is also closely related to the cooling after forming. If uneven cooling occurs, internal stress will lead to warping. That\u2019s why some boards are flat when they are first bought and start bending after a few days.Key performance indicators: What should be paid attention to when purchasing?Many people only consider thickness and price, but this is far from enough. The following indicators determine whether the board is ok for you:1. Flexural StrengthThis indicator determines whether the board will bend under stress. The unit is MPa (megapascals).Ordinary hollow board: bending strength of about 15-25MPaRigid corrugated plastic sheet: bending strength can reach 30-50MPaHow to measure? Simple method: Stand the board at both ends and hang a heavy object in the middle to see if it bends. A more professional, universal material testing machine can be used.2. Impact StrengthThis indicator determines whether the board will crack when suddenly impacted. The unit is kJ\/m \u00b2.Ordinary hollow board: impact strength of about 5-10kJ\/m \u00b2Rigid corrugated plastic sheet: impact strength can reach 15-25kJ\/m \u00b2If you are working on building floor protection, workers may drop materials, and boards with insufficient impact resistance may slip through and fail to provide protection.3. Heat Deformation Temperature (HDT)This indicator determines whether the board will soften at high temperatures. The unit is \u2103.Ordinary PP board: heat deformation temperature is about 80-100 \u2103Modified PP rigid board: hot deformation temperature can reach 120-140 \u2103If you place the board outdoors in summer, the ground temperature may reach 60-70 \u2103. The ordinary boards will become soft and cause warping. And the board with high heat deformation temperature will be ok.4. Surface Dyne LevelThis indicator determines whether something can be printed on the surface of the board. The unit is mN\/m.Untreated PP board: Dain value of about 30-32mN\/m, poor ink adhesionCorona treatment of PP board: Dain value can reach 50-54mN\/m, good ink adhesionIf you are making a billboard and need to print on the board, if the Dyn value is not enough, the ink will peel off and peel off. Our rigid boards undergo double-sided corona treatment before leaving the factory, with a stable Dyn value of over 50 to ensure printing quality.Performance degradation in long-term use: an easily overlooked issueMany people only care about the performance of new boards. In fact, the service life of the board can be affected by the following factors:1. UV agingPP material will gradually degrade under ultraviolet irradiation, manifested as:Surface becomes brittle and cracksColor fading and yellowingDecreased impact resistance strengthSolution: Choose UV-stabilized rigid board. We have added UV absorbers and light stabilizers to the raw materials to delay aging. If used outdoors, the UV-stabilized boards can be used 3-5 times longer than ordinary boards.2. Temperature cycleIn different temperatures (such as from -20 \u2103 in winter to 60 \u2103 in summer), the board will experience repeated thermal expansion and contraction. If the internal stress of the board is not eliminated, it will gradually warp.Solution: Choose sheets with low internal stress. Our multi-stage cooling process can minimize internal stress and maintain the stability of the board.3. The chemical corrosionPP material itself is resistant to acid and alkali, but certain solvents such as toluene and acetone can cause it to swell or crack.Solution: If your application scenario involves chemicals, please inform us, and we will try to improve the chemical resistance of the board.The influence of processing technology on performanceThe final product may be much worse for the same board with different processing methods.1. Cutting methodHand cutting: rough edges, prone to microcracks, affecting strengthDie cutting: Smooth edges, high precision, but high mold costCNC cutting: highest precision (\u00b1 0.5mm), suitable for various shapes, no mold cost2. Welding methodAdhesive: Low strength, not resistant to aging, not recommendedHot plate welding: high strength, but slow speedUltrasonic welding: high strength, fast speed, suitable for mass production3. Bending methodCold bending: prone to whitening and cracking at the bending pointHot bending: requires heating, but maintains good strength at the bending pointIndentation bending: The crease is neat, and the strength loss is smallSummaryChoosing rigid corrugated plastic sheets you need to concern ont only the products itself, you also need to choose a partner who can understand your application, control material formulation, and ensure processing quality. Purepack as a factory controls the entire process ourselves. You just need to tell us your requirements, and leave the rest to us.Send Your Inquiry Now Let’s Discuss Your Needs and Find the Right Solution!If you do not know how to choose the best solutions for your project, we are happy to discuss with you and offer suggestions.Send Your Inquiry Now Scroll to Top WechatWhatsapp+8615898740625Call Now+0018058073459Email NowEmail Now Choosing us for Rigid, Flat, and Durable Corrugated Plastic Sheets Corrugated Polypropylene Sheets 3-Heavy-Duty corrugated plastic boxes Excellent Printability Lightweight & Strong_ We Are the Source Factory Strong Processing Capability 1-about purepack About-Purepack Custom Yard Signs for Election Campaign Heavy-Duty Logistics & Factory Turnover Boxes Are You Ready to Customize Your Perfect PP Sheet Solution Customer Gallery -Customer Gallery Quality Certification Factory Gallery wechat<\/p>\n","protected":false},"excerpt":{"rendered":"
Rigid Corrugated Plastic Sheets Rigid Corrugated Plastic Sheets – Purepack xSend Your Inquiry Today Skip to content Rigid Corrugated Plastic Sheets ManufacturerWholesale rigid corrugated polypropylene sheets are perfect for corrugated plastic signs, plastic layer pads and heavy-duty packaging.Superior Rigidity & Flatness: It is critical for signage and perfect for printing.High […]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"product-category3.php","meta":{"_acf_changed":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"full-width-container","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":"disabled","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"default","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":"","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":""}},"footnotes":""},"class_list":["post-25823","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"\n