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S-Line Corrugated Sheets

Corrugated polypropylene sheet with an S-shaped flute profile for packaging and industrial applications.

Blue, grey and white S-Line corrugated polypropylene sheets with subtle surface rib traces and S-shaped channels visible at the lower corner

Shaped around your application.

The S-Line profile offers a sheet option for packaging and industrial applications. Product dimensions, loads and operating conditions guide the selection of a suitable sheet.

Material: Polypropylene (PP)
Structure: Twin-wall corrugated sheet
Minimum dimensions: 600 × 600 mm
Maximum dimensions: 2100 × 6000 mm
Dimensions and colour: Specified for your application

Production dimensions, thickness and additive options are confirmed by our technical team for the selected product.

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Technical Documents

Technical Data Sheet (TDS)

Polypropylene material & corrugated-sheet reference data.

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Material Safety Information (MSDS)

Corrugated polypropylene · material safety reference.

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Food-contact Declaration

Raw-material food-contact reference information.

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Certifications

QDMS
Digital quality management
CE
European conformity marking

H-Line / S-Line comparison

H-Line / S-Line

Along flutes · strongAcross flutes · weak

S-Line offers a more balanced directional response.

8 mm · 1,600 g/m² referenceSchematic comparison

How H-Line and S-Line distribute strength
Characteristic	H-Line	S-Line
Flute structure	Straight, parallel flutes	S-shaped flutes
Stronger direction	Along the flutes	Along the flutes
Transverse strength	Lower relative to the flute direction	Increased transverse contribution
Directional balance	A larger gap between directions	A smaller gap between directions

Directional behaviour is shown schematically. Actual performance depends on sheet specification and test method.

Surface Treatments & Additives

Match the surface and functionality of your corrugated sheets to the way they are printed, handled and used.

Corona treatment

Increases surface energy to improve ink, coating and adhesive adhesion. The treatment level is tailored to your printing or bonding process.

Anti-slip

Grip-enhancing finishes help reduce sliding in separators, protective liners and handling applications. Surface friction is selected for the load and the materials in contact.

Anti-static

Helps reduce static charge build-up and dust attraction during handling. Electrical performance is specified to suit the components being packaged and their working environment.

Flame retardant

Formulations can help delay ignition and slow flame spread. Required fire performance is assessed for the selected sheet thickness, application and test classification.

UV treatment

UV stabilisation helps limit sunlight-driven ageing, colour change and loss of strength. The formulation is selected around exposure, climate and intended outdoor service life.

Anti-corrosive

Protection options help address corrosion risks for packaged metal parts. The suitable system depends on metal type, moisture exposure, storage duration and packaging design.

Options are specified by product and application. Our team can confirm availability, compatibility and the performance requirements for your project.

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Comparison with different materials

Explore the practical differences between corrugated PP, cardboard and injection-moulded packaging.

Ten practical considerations for corrugated polypropylene, corrugated cardboard and injection-moulded plastic packaging.
Consideration	RÖPLAST SHEETSCorrugated PP	Corrugated paperCardboard	Injection-mouldedPlastic packaging
Project development	Quick prototyping with relatively low tooling costs.	Quick prototyping with relatively low tooling costs.	Dedicated moulds usually require higher initial investment.
Durability & strength	Lightweight, with good tear and puncture resistance.	Can tear or puncture; strength depends on board construction.	Rigid structure; weight and impact resistance depend on resin and design.
Cleanliness	Non-fibrous surfaces can be washed and reused.	May release paper fibres; limited suitability for wet cleaning.	Non-fibrous surfaces can generally be washed and reused.
Cost over repeated use	Repeated use can reduce the packaging cost per trip.	Often economical for single trips; repeated replacement adds cost.	Repeated use can offset higher initial and tooling costs.
Lead time	Fast cutting and converting once the sheet specification is agreed.	Fast cutting and converting once the board specification is agreed.	New products need time for mould design, manufacture and validation.
Waste & recycling	Reusable; PP recycling depends on collection and material condition.	Recyclable where accepted; frequent replacement creates ongoing waste.	Reusable; recycling depends on resin, additives and local collection.
Customisation	Readily cut, folded and printed for application-specific formats.	Readily cut, folded and printed for application-specific formats.	Changes in shape may require mould modifications or new tooling.
Operational continuity	Durable returnable packs can reduce replacement-related interruptions.	Damaged or wet packs may need replacement during handling.	Durable returnable packs support repeated handling; damage still requires replacement.
Moisture resistance	Non-absorbent PP supports use in wet or humid environments.	Uncoated board can lose strength when wet; coatings alter performance.	Generally moisture-resistant; performance depends on the selected resin.
Colour options	A range of sheet colours; custom colours can be specified.	Common kraft or white bases, with printed colour options.	Colours can be specified; availability depends on resin and production batch.

Indicative comparison for packaging applications. Results vary with material grade, design, quantity and conditions of use.

Converting & customisation

Print & surface

Discuss surface properties and colour options for your print application.

Special additives

Confirm the availability of UV, antistatic and ESD properties for your application.

Cutting & converting

Product-specific converting options for boxes, dividers and protective components.

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PRODUCT SYSTEMS

Our Products

Different structures. A shared approach:
lightweight, durable and versatile.

Blue, grey and white H-Line corrugated polypropylene sheets with straight channels visible in the blue sheet’s cutaway

H-Line Corrugated Sheets

Twin-wall corrugated polypropylene sheet for packaging, protection and print applications.

Explore product ↗