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Eska® Strong

Exceptionally robust100% circular

Recycled fibres Lays flat, stays flat Optimal runability

With its high density and durability, this 100% recycled board is the best sustainable choice for heavier book covers, toys and games, or as a substitute for plastic and wood materials.

The unique ‘lay flat, stay flat’ technology ensures superior rigidity and enduring quality for products that demand extra protection, while enhancing the values of responsible brands.

FeaturedRectangles1168_0016_ESKA BOARD GP
  • Hardcover books
  • Games & Toys
  • Ring binders
  • Albums
  • Note books
  • Displays and showcards
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MarginSamples_0007_FullBoardPatches__0002_FeaturedRectangles1168_0015_ESKA COLOR rvb
MarginSamples_0008_FullBoardPatches__0001_FeaturedRectangles1168_0017_ESKA BOARD rvb
MarginSamples_0004_FullBoardPatches__0005_FeaturedRectangles1168_0009_ESKA JEANS rvb
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MarginSamples_0003_FullBoardPatches__0006_FeaturedRectangles1168_0007_ESKA MONO BLACK rvb
MarginSamples_0001_FullBoardPatches__0008_FeaturedRectangles1168_0001_ESKA WHITE rvb
MarginSamples_0006_FullBoardPatches__0003_FeaturedRectangles1168_0013_ESKA DUO WHITE rvb
MarginSamples_0002_FullBoardPatches__0007_FeaturedRectangles1168_0005_ESKA MONO WHITE rvb
MarginSamples_0000_FullBoardPatches__0009_FeaturedRectangles1168_0003_ESKA PUZZLE rvb
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FSC® certified FSC-C022653
PEFC certified PEFC/30-32-541
EN-71-part 3 Migration of certain elements (Toy Safety)
Foodstuffs and Consumer Act Food Safety
  • High rigidity
  • Lays flat and stays flat
  • Even surface
  • Optimal runability
  • Easy to cut, die cut, crease, score, gouge, mill, punch, drill and emboss/deboss

Sizes

Sheets are available in any size from 400 x 500 mm (LG) to 1600 x 1600 mm (LG)

Rotary cut sizes are available in any size from 100 x 150 mm (LG) to 680 x 1370 mm (LG)

Other large sheet sizes and die-cut sizes available on request

Calipers

See table below for details

Technical specifications

Caliper ISO 534 Grammage ISO 536 Dynamic stiffness ISO 5629 Bursting Strength ISO 2759
mm g/m² MDmNm CDmNm topkPa bottomkPa
1.00 805 310 120 1260 1260
1.25 1010 575 220 1310 1310
1.50 1210 905 365 1425 1425
2.00 1615 1900 800 1705 1705
2.25 1815 2575 1110 1875 1875
2.50 2015 3355 1485 2060 2060
3.00 2420 5260 2445 2500 2500

* Other calipers available on request.

Specifications Units Tolerances : Test Methods
Caliper See above mm < 1.5 mm ± 0.05 mm (pallet average) ISO 534
≥ 1.5 mm ± 3% (pallet average)
Size mm Sheets ± 1 mm
Rotary cut ± 0.25 mm
Die cut ± 0.20 mm
Flatness 0 % Convex CD max. 1.5% Eska
MD max. 1.0%
Concave CD max. 1.0%
MD max. 1.0%
S-shape CD - sheets < 1 m. max. 3 mm
- sheets ≥ 1 m. max. 5 mm
MD max. 3 mm
Moisture Content 8.0% abs. % -1.5 % / +1.0% (pallet average) ISO 287