YoungSun Duplex Board with grey back
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PB10 · Structure & performance

Duplex Board

Coated white top and grey back paperboard for printed folding cartons.
Download Duplex Board TDSRequest a SampleRequest a Quote
Nominal grammage200–400 gsm
SurfaceCoated white top
ReverseGrey back
Supply formSheets / reels by grade

Nominal range covers documented grades. Confirm the selected grade and order specification.

Product overview

What is Duplex Board?

Duplex Board has a coated white printing face and a grey reverse. It is designed for printed folding cartons, sleeves and secondary packaging.

Select the grade by nominal grammage, caliper, stiffness and carton geometry. Confirm printing, creasing and folding against a converted sample.

Material direction

Built around the finished structure.

Select the board by thickness, construction, stiffness and the operations it must pass through.

Material highlights

  • Coated white face for graphics and print finishing.
  • Grey reverse for general folding-carton construction.
  • Grade-specific caliper and stiffness for converting.

Typical applications

  • Shoe and toy boxes
  • Household and hardware cartons
  • Printed sleeves and secondary packaging

How to compare stiffness and Cobb values across data sheets

Start with the board grade and grammage on each sheet. Then check the test conditions before comparing the reported values.

How to compare stiffness and Cobb values across data sheets
MetricWhat to check
Bending stiffnessTest method and revision, machine or cross direction (MD or CD), bending angle and span where applicable, conditioning and reporting unit.
Cobb water absorptivenessTest method and revision, exposure time, side tested (coated face or grey back), and reporting unit.
AcceptanceAsk whether the figures are typical values or agreed limits. Request the current technical data sheet for the grade you intend to buy.

Buying guide for this material

Use this guide alongside the grade-specific document and physical sample when preparing your order.

Practical questions

Before you specify.

Which nominal grades are documented?

200, 230, 250, 270, 300, 350 and 400 gsm.

Technical reference

Download the available English TDS.

Use the current grade-specific document for technical review, then confirm the approved sample and order specification.
Download Duplex Board TDS ↓Send your specification →