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Master Bond adhesives
3A Composites Core Materials BALTEK® SB.100 Structural End-Grain Balsa
Categories: Other Engineering Material; Composite Core Material; Polymer; Renewable/Recycled Polymer; Wood and Natural Products; Wood

Material Notes: BALTEK® SB is a core material produced from certified kiln-dried balsa wood in the ‘end-grain’ configuration. It has extremely high strength and stiffness to weight ratios, and achieves an excellent bond with all types of resins and adhesives. It is compatible with a variety of manufacturing processes and is resistant to temperature changes, or exposure to fire, or chemicals such as styrene. BALTEK® SB is an ideal core material for an extensive range of applications. All while being a renewable resource.


  • Extremely high strength and stiffness to weight ratios
  • Excellent fire performance
  • Ecological product
  • Wide operating temperature range -212 °C to +163 ° C (-414 °F to +325 °F)
  • Excellent fatigue resistance
  • Good sound and thermal insulation
  • High impact strength
  • Good moisture resistance
  • Marine: Hulls, decks, bulkheads, superstructures, interiors, tooling + molds
  • Road and Rail: Floors, walls, roof panels, body panels, interiors, front-ends, side skirts
  • Wind Energy: Rotor blades, spinners, nacelle covers, generator housings
  • Aircraft: Floor panels, galley carts, interior partitions, cargo pallets, containers, general aviation (sport aircraft) parts
  • Defense: Naval vessels, containers, cargo pallets, shelters
  • Industrial: Tooling, tanks, ductwork, impact limiter, concrete forms, fascia panels, skis, snowboards, wakeboards
Available Properties
  • Density, ASTM C271, apparent nominal
  • Tensile Strength, ASTM C297, perpendicular to plane
  • Tensile Modulus, ASTM C297, perpendicular to plane
  • Compressive Strength, ASTM C365, perpendicular to plane
  • Compressive Modulus, ASTM C365, perpendicular to plane
  • Shear Modulus, ASTM C273
  • Shear Strength, ASTM C273
  • Thermal Conductivity, ASTM C177
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