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Eska® frog cover

Eska Frogcoverleaps ahead

High Rigidity Lays flat, stays flat Optimal runability

How do we do it? It looks like hardback, is durable like hardcover but is as lightweight as paperback!

Eska frogcover is our much coveted 1mm lined 3-layer solid board. Lightweight, with all the luxury of a hardback feel, it leaps ahead of the competition.

FeaturedRectangles1168_0010_ESKA FROG COVER GP

Is it magic? Trickery?

Or is it Eska frogcover? Our bookbinding board has consistent calipers and sizes, optimal runnability and is easy to cut, die cut, crease, score, gouge, emboss/deboss.
  • School books
  • Children books
  • Travel guide
  • Exhibitions
  • Manuals
  • Novels
  • Packaging
MarginSamples_0000_FullBoardPatches__0009_FeaturedRectangles1168_0003_ESKA PUZZLE rvb
MarginSamples_0006_FullBoardPatches__0003_FeaturedRectangles1168_0013_ESKA DUO WHITE rvb
MarginSamples_0003_FullBoardPatches__0006_FeaturedRectangles1168_0007_ESKA MONO BLACK rvb
BlackBlack_0001_Layer 1
MarginSamples_0008_FullBoardPatches__0001_FeaturedRectangles1168_0017_ESKA BOARD rvb
MarginSamples_0002_FullBoardPatches__0007_FeaturedRectangles1168_0005_ESKA MONO WHITE rvb
MarginSamples_0001_FullBoardPatches__0008_FeaturedRectangles1168_0001_ESKA WHITE rvb
MarginSamples_0004_FullBoardPatches__0005_FeaturedRectangles1168_0009_ESKA JEANS rvb
MarginSamples_0007_FullBoardPatches__0002_FeaturedRectangles1168_0015_ESKA COLOR rvb

Our collection 1 /

Learn more
FSC® recycled 100% DNV-COC-002632
EN-71-part 3 Migration of certain elements
Foodstuffs and Consumer Act Food Safety
  • Consistent calipers and sizes
  • Optimal runnability
  • Easy to cut, die cut, crease, score, gouge, emboss/deboss.
Read Eska runability case study Read more


Large sheets are available in any size from 500 x 500 mm to 1200 x 1600 mm

Rotary cut sizes are available in any size from 100 x 150 mm to 480 x 1360 mm

Die cut sizes are available in any size from 100 x 150 mm to 720 x 1050 mm


< 1.5 mm ± 0.05 mm (pallet average) ≥ 1.5 mm ± 3% (pallet average)

Technical specifications

Caliper ISO 534 Grammage ISO 536 Dynamic stiffness ISO 5629 Bursting Strength ISO 2759 COBB60 ISO 535
mm g/m2 MDmNm CDmNm kPaTop kPaBottom g/m²/60secMax top g/m²/60secMax bottom
1.00 675 270 115 815 815
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