Structural Core Materials

GURIT® BALSAFLEX™

END GRAIN BALSA WOOD CORE
  • High quality composite core material made from end grain balsa
  • Highest strength to weight ratio of any structural core
  • Natural, sustainable and responsibly sourced

Gurit® Balsaflex™ is the classic end-grain balsa wood core, featuring very high strength to weight ratio. When an application requires high-strength and stiffness and cost effectiveness, Gurit® Balsaflex™ is a suitable solution due to a good balance between cost, properties and weight. Gurit® Balsaflex™ is available in a range of densities, thicknesses, formats and finishes. Gurit® Balsaflex™ is Germanischer Lloyds and Lloyds approved.

Typical Applications

Gurit® Balsaflex™ is used for wind turbine blades and nacelles, marine, automotive, truck, rail and aircraft parts. Gurit® Balsaflex™ can be supplied in sheet form or kit-cut to customer’s desired shapes.

Technical Data

​Sheet Sizes
DENSITY
SPECIAL SHEET (Flexible Panel Only) NOMINAL SHEET SIZE
mm inches mm inches
110 1220 x 1220 48 x 48 610 x 1220 24 x 48
150 1220 x 1220 48 x 48 610 x 1220 24 x 48
220 1220 x 1220 48 x 48 610 x 1220 24 x 48
​​Unbonded Thickness
DENSITY
UNBONDED THICKNESS
mm inches
110 6.35-55 1/4 - 2
150 6.35-55 1/4 - 2
220 6.35-55 1/4 - 2
​Mechanical Properties
TYPE
UNITS 110 150 220
Nominal Density kg/m³ 110 155 220
lb/ft³ 6.9 9.7 13.7
Typical Density Range
kg/m³ 100-125 135-176 200-242
lb/ft³ 6.3-7.8 8.4-11.0 12.5-15.1
Compression Strength
MPa - 13.0 -
psi - 1885 -
Compression Modulus MPa - 3518 -
psi - 510243 -
Shear Strength MPa - 2.8 -
psi - 406 -
Shear Modulus
MPa - 163 -
psi - 23641 -
Tensile Strength MPa - 12.6 -
psi - 1827 -
Tensile Modulus MPa - 3347 -
psi - 485,441 -
​Third Party Certifications
CERTIFICATE ISSUER CERTIFICATE
DNV-GL WP 1610007 HH