SPC Corrugated Hollow Sheet
The board every box starts from
A thin twin-wall polymer sheet with a high proportion of natural mineral content. It forms the base material for CSBX packaging: die-cut, folded, printed and converted into boxes.

Why sheet, not board
Conventional paper-based corrugated board weakens in moisture, humid storage and repeated handling. SPC hollow sheet is developed as a durable, moisture-resistant alternative for demanding packaging environments.
Moisture resistance
The sheet does not soften like paper-based board when exposed to humidity or water.
Lightweight structure
Two thin skins joined by internal ribs keep the sheet light while retaining structural stiffness.
Thin twin-wall profile
Current material baseline: thin skin layers with a hollow corrugated internal structure and a total board thickness of roughly 4–5 mm.
Convertible
Die-cuttable, foldable and printable — suitable for box conversion, dividers and protective structures.
Sheet characteristics
Developed as a material platform, not a single fixed specification.
- 01
White / light colour
Natural mineral-rich surface that supports printing and product identification.
- 02
Regular internal ribs
Fine, regular hollow channels that balance stiffness and weight.
- 03
Printing surface
Supports basic colour printing for branding and labels.
- 04
Die-cut & fold lines
Developed for creasing, cutting and folding into box structures.
What we need to evaluate a sheet application
Tell us the application and the performance the packaging has to survive.
- The product or box the sheet will be used for
- Environment: humidity, condensation, chilled or frozen handling
- Target box dimensions and pallet pattern
- Printing or branding requirements
Mineral-rich composite
SPC combines a high proportion of mineral-based calcium carbonate with selected polymer carriers and functional additives to create a lightweight, durable and processable composite material.
Frequently asked questions
- Is this the same SPC as Stone Plastic Composite flooring?
- No. CSBX uses SPC for Stone Polymer Composite — a thin twin-wall hollow sheet for packaging. It is not flooring, and not a solid or decorative board.
- What is the sheet thickness?
- Current material baseline is a thin twin-wall structure of roughly 4–5 mm total thickness, developed for packaging conversion rather than thick structural panels.
Start with the application
Send us what you pack and where it travels. We will advise whether SPC hollow sheet fits.