Custom Plastic Sheet Manufacturing · OEM / ODM · Made to Your Specification

Custom Transparent Corrugated Plastic Sheets

Lightweight corrugated plastic sheets manufactured to your required size, thickness, profile and application. Options include custom cutting, scoring, folding, printing and selected performance grades depending on the material.

MaterialPP / PE*
ThicknessPer application*
Sheet SizeCustom
ColorClear / Transparent / Translucent / Custom
FabricationCutting / Scoring / Folding*
ApplicationPackaging / Protection / Display*

Global OEM / ODM ISO 9001:2015 Custom sizes & fabrication QC & documentation
Semi-transparent corrugated plastic sheet with parallel flutes
Transparent corrugated plastic sheet — parallel flute profile visible across the panel
StructureTwin-wall / Fluted
ProfileCustom rib spacing*
TransparencyClear · Translucent*
RouteSheet → Fabricated Part
Overview

Transparent Corrugated Plastic Sheet Overview

Before any specification talk: this page is about twin-wall corrugated plastic sheet in the packaging, protection and display family — the Coroplast / Correx / Corflute type of product, normally PP or PE. Corrugated polycarbonate roofing sheet is a different product with a different buying path, and we compare the two further down so you do not order the wrong material.

What Is a Corrugated Plastic Sheet?

A corrugated (twin-wall, fluted) plastic sheet has two flat outer skins connected by a row of internal ribs. The flutes run the length of the sheet. This cross-section is what separates it from solid sheet: the panel gets stiffness from the rib structure while staying light, because the middle is mostly air.

Clear vs Transparent vs Translucent

These words are not interchangeable, and buyers mix them up more than they should. Clear sheet lets you see through it with little distortion. Transparent is a broader term for light passing through. Translucent lets light through but scatters it, so you cannot see a sharp image behind the panel. Corrugated PP is usually translucent rather than optically clear — the polymer and the flute walls both scatter light. If a project needs optical clarity, that decision belongs to a different material conversation.

Specifications

Transparent Corrugated Plastic Sheet Specifications

Numbers on this page are confirmed against a real material grade, test method and application. We removed the old data table without a source and we will not publish guessed values for a sheet we have not reviewed.

MaterialPP / PE, grade per application*
Color / TransparencyClear / Transparent / Translucent / Custom color*
ThicknessPer application and flute profile*
Sheet WidthCustom*
Sheet LengthCustom*
GSM / WeightPer material grade and structure*
Flute StructureTwin-wall / custom rib profile*
SurfaceSmooth / Matte*
PrintingAvailable per surface treatment*
CuttingAvailable
Scoring / FoldingAvailable*
Die CuttingAvailable*
UV GradeAvailable*
Anti-StaticAvailable*
Flame-RetardantAvailable*
MOQPer order — confirm at quotation

* Every starred option is confirmed against the material grade, the flute profile and the project requirement before production. A performance claim without a test method is not a specification.

Structure

How the Corrugated Structure Works

The corrugated cross-section is the whole point of the product. Once you see it, most material decisions become obvious.

Top skin — flat outer face Internal ribs / flutes — stiffness without solid mass Bottom skin — flat outer face

The internal ribs increase panel stiffness without making the sheet solid. That is the trade that matters: you get a panel that stands up in use, stays light enough to ship and handle, and uses less polymer than a solid sheet of equivalent rigidity. Flute spacing and profile can be adjusted, and they change how the sheet behaves under load and in folding — which is why the flute structure is part of the specification, not a decoration.

Comparison

Why Use Corrugated Plastic Instead of a Solid Sheet?

FactorCorrugated SheetSolid Sheet
WeightLowerHigher
Rigidity-to-weightStrongDepends on thickness
Material useLower for many designsHigher
HandlingEasyCan be heavier
FabricationEasy to cut and fold depending on structureMore processing
PackagingGoodApplication dependent
The rule of thumb: the fluted structure gives stiffness without a fully solid cross-section. That is not a universal claim that corrugated is always better — it is the reason the product exists, and it decides where it fits.
Material

Material Options for Transparent Corrugated Sheets

We list the materials we actually supply. If a material is not on this list, we do not pretend it is.

MaterialTypical AdvantageTypical Applications
PPLightweight, moisture resistant, recyclablePackaging, partitions, protection
PEImpact resistance, flexibilityProtection, industrial applications
PVC*Rigidity / specific performanceApplication dependent
Polycarbonate*Impact strength, light transmissionRoofing / glazing — separate product

* PVC and polycarbonate are only offered where your project actually requires them. They are not interchangeable with PP / PE hollow sheet, and we will say so in the quote.

Selection

How to Choose the Right Material

Start with the requirement, not with the polymer name. This table maps the requirement to the material to consider — the final call still needs the application details.

RequirementMaterial to Consider
Low weightPP
Moisture resistancePP / PE
Impact resistancePE / specific grades
RigidityDepends on structure / material
Outdoor exposureUV-stabilized grade
PrintingCorona-treated surface
Anti-staticESD grade
Flame retardancyFR grade
High optical clarity / roofingConsider polycarbonate where applicable
One caution: "transparent" is not the same as optical clarity. A clear corrugated PP sheet lets light through, but you will not read text through it the way you would through glass. Buyers sometimes ask "is it opaque?" — the honest answer sits between the two, and we define the actual level at quotation.
Thickness

How to Choose Corrugated Plastic Sheet Thickness

There is no universal thickness rule like "2 mm means signage, 6 mm means packaging". Thickness follows the load, the sheet size, the flute structure and the application.

ApplicationMain Selection Factor
SignageAppearance / rigidity / printing
PackagingWeight / stiffness / handling
DividersImpact / stiffness
ProtectionImpact / durability
Greenhouse / glazingMaterial + UV + transparency + structural requirement
Final thickness is selected from sheet dimensions, flute structure, load, support spacing and the operating environment. Send us the application and we will recommend a starting thickness rather than selling you the thickest sheet we make.
Customization

Custom Corrugated Plastic Sheet Options

Size

Custom width and length to fit your panel, box or part layout.

Thickness

Selected from stiffness, load, handling and application.

Flute / Rib Profile

Rib spacing and profile can be reviewed against the design.*

Color / Transparency

Clear, translucent, or custom color where the material allows.

Printing

Logos, graphics and labeling, subject to surface treatment.*

Cutting

Trimmed to exact dimensions.

Scoring

Clean, controlled fold lines for boxes and panels.*

Folding

Formed into boxes, dividers and covers.*

Punching / Die Cutting

Holes, slots and cut profiles for assembly and function.*

Fabrication

Custom Fabrication for Corrugated Plastic Sheets

A raw sheet is only half the product. Most buyers want the finished panel or component: cut to size, scored, printed, folded, ready to use.

Extrusionsheet profile formed
Sheet Cuttingwidth / length
Scoringfold lines*
Punching / Die Cuttingholes / profiles*
Printinglogos / graphics*
Folding / Formingboxes / dividers*
Finished Part
From raw sheet to finished component: tell us what the sheet becomes — a divider, a box insert, a protective cover, a display panel. We build the fabrication steps into the quote instead of quoting a blank sheet and leaving the work to you.
Performance

Performance Options for Different Applications

Performance is a set of options tied to the application, not a generic list of material properties. Every starred option is confirmed against the grade before production.

UV Stabilization*

For outdoor exposure — sustained sunlight, weather resistance and service life.

Anti-Static*

ESD-sensitive environments where static discharge or dust attraction matters.

Flame Retardant*

Where the application or destination regulation calls for FR performance.

Surface Treatment*

Corona or other treatment where printing and ink adhesion are required.

Moisture Resistance

PP and PE handle moisture well — confirm the grade for wet environments.

Impact Resistance*

Grade and structure selected where handling, drops or load matter.

Not a data sheet: we will not hand you a flexural-strength table with no test method and no grade. Ask for the values you need and we will either confirm them against the grade or tell you they cannot be claimed.
Applications

Transparent Corrugated Plastic Sheet Applications

Packaging & Returnable Packaging

Layer pads, dividers, liners, box components and product protection that has to survive repeated handling.

Layer padsDividersLinersBox inserts

Protective Panels

Temporary barriers, window protection, surface protection and warehouse protection where visibility matters.

Temporary barriersWindow protectionSurface protection

Signage & Display

Signage backing, display panels, point-of-sale materials and printed graphics.

Signage backingDisplay panelsPOS materials

Partitions

Light, clean partitions for warehouses, workshops and temporary spaces.

PartitionsScreening

Greenhouse / Light Transmission*

Light-diffusing applications are possible, but this is where the product boundary matters most.

Light diffusionVerify with PC for roofing

Industrial Protection

In-process protection, shielding and covers in manufacturing environments.

ShieldingCoversIn-process protection
Careful with "greenhouse": if the project is structural glazing or long-term outdoor roofing, corrugated PP is normally the wrong product and we will tell you so. That application belongs to polycarbonate, compared below.
Product Boundary

Corrugated PP vs Corrugated Polycarbonate: Which Should You Choose?

These two products share the word "corrugated" and little else. The comparison below is not about which is better. It is about which product your project actually needs.

FactorCorrugated PPCorrugated PC
WeightLightweightLightweight
ImpactGoodHigher
TransparencyClear / translucent depending on gradeHigh
Structural glazingLimited / application dependentStrong candidate
PackagingExcellentUsually unnecessary
Greenhouse / roofingApplication specificCommon
FabricationEasy to convertApplication dependent
CostGenerally lowerGenerally higher
The point of this table: it separates two search intents. If you came here for roofing, you are on the wrong product page and should be comparing polycarbonate suppliers. If you came here for packaging, protection or display, you are in the right place.
Process

How Custom Corrugated Plastic Sheets Are Manufactured

Each step controls something specific. That is the difference between a production line and a description.

Material Selectiongrade for the application
Extrusionmelt temperature, profile consistency
Corrugating / Profile Formingflute geometry
Cooling & Calibrationthickness, width, flute shape
Cuttingdimensional accuracy
Surface Treatment / Printing / Fabrication*ink adhesion, finished part
Quality Inspectiondimensions, visible defects
What is controlled: extrusion controls melt temperature and profile consistency; calibration controls thickness, width and flute geometry; cutting controls dimensional accuracy; printing controls surface treatment and ink adhesion; inspection verifies dimensions and visible defects. Every stage has a job, and the inspection plan follows it.
Quality

Quality Control for Transparent Corrugated Plastic Sheets

The QC plan follows the specification. If we cannot test it, we do not claim it.

MaterialResin / grade verification
ThicknessSheet thickness per spec
Width / LengthDimensional accuracy
Flute ProfileRib geometry check
Weight / GSMProduct consistency
TransparencyAppearance / light transmission as specified
SurfaceScratches / contamination
PrintingRegistration / adhesion where applicable*
Functional GradeUV / FR / ESD if specified*

* Functional-grade tests are run only where the order specifies them, using the agreed method and acceptance criteria.

Packaging

Packaging for Corrugated Plastic Sheets

Sheets travel flat, and they travel better when the edges and surfaces are protected. The exact packing follows the order, but the starting point is consistent:

Protective Film

Surface protection where the finish must arrive clean.*

Flat Stacking

Sheets stacked flat to avoid warping in transit.

Edge Protection

Corners and edges guarded against impact damage.

Pallet + Moisture Protection

Palletized loads with moisture protection for export shipping.*

Engineering Evidence

Custom Transparent Corrugated Sheet Case Study

The format we use for real projects. We will not publish an invented customer story — the entries below are the data fields, and the values come from your project.

Custom Transparent Corrugated Sheet — Project Format
Customer ApplicationPackaging divider / protective panel / display part*
Required SizeWidth × length per drawing*
MaterialClear PP / PE*
ThicknessPer application*
TransparencyClear / translucent per spec*
Flute StructureStandard / custom profile*
FabricationDie-cut + scored / printed*
What we would report back

Material and grade recommendation with the reason.

Thickness and flute recommendation against the load and size.

Fabrication plan and the tooling or setup each step needs.

QC points that match the agreed specification.

Packaging and lead-time confirmation.

Send the drawing or application details, and this table becomes a real project file with real numbers.

RFQ

Request a Custom Transparent Corrugated Plastic Sheet

To recommend the right sheet structure, send us the inputs below. The more complete the RFQ, the more accurate the recommendation.

  1. ApplicationPackaging, protection, display, other
  2. Sheet Width & LengthTarget dimensions or drawing
  3. ThicknessIf known; otherwise we recommend
  4. Material PreferencePP / PE / other
  5. Transparency RequirementClear / transparent / translucent
  6. Annual / Order QuantityVolume target
  7. Outdoor Exposure & UV RequirementIndoor / outdoor, service life
  8. PrintingLogos, graphics, labeling
  9. Cutting / Fabrication / DestinationScoring, folding, die cutting, shipping
What you receive

Material and grade recommendation with the reason

Thickness and flute-profile guidance

Fabrication plan and any setup or tooling notes

Production quotation with estimated lead time

Confirmation of QC and packaging scope

Submit the RFQ via our form →

FAQ

Frequently Asked Questions

What is transparent corrugated plastic sheet?

It is a lightweight sheet with two outer skins connected by internal ribs (flutes). The structure gives the panel stiffness without a solid cross-section. Common materials are polypropylene (PP) and polyethylene (PE); polycarbonate is a separate product used mainly for roofing and glazing.

What is the difference between corrugated PP and solid PP sheet?

Corrugated (twin-wall) PP uses internal flutes, so it is lighter and stiffer per unit weight than a solid sheet of the same thickness. Solid PP sheet is heavier, has no flute structure, and behaves differently under load and in fabrication.

Is clear corrugated plastic really transparent?

It depends on grade and structure. 'Clear', 'transparent' and 'translucent' are different levels of light transmission. Corrugated PP is usually translucent rather than optically clear; the flutes and the polymer itself scatter light. If you need optical clarity, confirm the material and grade before quoting.

What thicknesses are available?

The available range depends on the material and flute profile, and is confirmed against the application. Thickness is selected from stiffness, load, handling and the dimensions of the sheet.

Can transparent corrugated plastic sheets be custom cut?

Yes. Sheets can be cut to custom width and length, and fabricated into panels or components with scoring, folding, punching and die cutting depending on the material and profile.

Can you print logos or graphics on the sheet?

Printing is available as an option depending on the material and surface treatment. Confirm the printing method and ink-adhesion requirement with our team before production.

Can corrugated plastic sheets be folded or fabricated?

Yes. Scoring allows clean folds, and fabricated parts such as dividers, boxes, covers and protective panels can be produced from the raw sheet.

Is PP corrugated sheet suitable for outdoor use?

It can be used outdoors in many applications, but long-term outdoor exposure usually calls for a UV-stabilized grade. Confirm the exposure, expected service life and performance requirement with our team.

Do I need UV stabilization?

If the sheet will face sustained sunlight, a UV-stabilized grade is normally recommended. The need depends on the application, expected lifetime and whether appearance or mechanical retention matters more.

Is corrugated PP suitable for greenhouse roofing?

For structural glazing and long-term roofing, corrugated polycarbonate is the product normally used. Corrugated PP has different light transmission, weathering and structural behavior, so we do not recommend treating the two as interchangeable.

What is the difference between PP and polycarbonate corrugated sheets?

PP corrugated sheet is lightweight, low-cost and widely used for packaging, protection, partitions and signage. Polycarbonate corrugated sheet offers higher impact strength and better optical clarity, and is the usual choice for roofing and glazing. They serve different product markets.

Can you provide custom sheet dimensions?

Yes. Custom width and length are available, and thickness and flute profile can be reviewed against the application.

What information is needed for a quotation?

Send the application, sheet width, sheet length, thickness, material preference, transparency requirement, annual or order quantity, outdoor exposure and UV requirement, printing, and any cutting or fabrication needs.

Have a Sheet Specification to Discuss?

Send the application, the dimensions and the performance requirements. We will confirm the material, thickness and flute structure, then quote the sheet — or the finished fabricated part.

Xiamen Goldcattle Plastic & Metal Products Co., Ltd. · Founded in 1998 · Global OEM/ODM one-stop custom parts manufacturer

Recommended Reading