Features include:

  • Chemically enhanced, pre-coated end grain balsa for composite construction and repair of hulls, decks and superstructures.
  • Compatible with polyester, vinyl ester or epoxy resins and glass, Kevlar or Carbon Fibers.
  • High Strength-to-Weight Ratio, impact and fatigue resistant.
  • Used as a sustainable, lightweight core material in various sandwich structures it allows the construction of lightweight yet sturdy composites.
  • Excellent flexural, bond and shear strengths.
  • Requires less resin to wet out than cellular foam cores.
  • Pre-wetting is not necessary.
  • Certified and approved for marine use.

The only core material that comes from natural and renewable resources, balsa offers many advantages in the manufacture of composite parts.

*Extra cost will apply due to box size*

*Shipping rates will apply based on order*

Density 9.5 lbs.

Available in 2"x4" Sheets in the following sizes:

24" x 48" Sheet Balsa Core
Thickness Item# Price ORDER
1/4" 48305 $60.40
 3/8" 48310 $67.76
 1/2" 48318 $78.48
 3/4" 48323  $96.08
1" 48340 $117.12

Balsa Core has a honeycomb-like cell structure that’s configured into end-grain panels that can provide optimal properties including high compressive, flexural and shear strength along with stiffness. Balsa is a cost effective, natural material that is produced in a variety of densities that can be tailored to specific applications. It is widely used in the production of boats, WIND TURBINE BLADES, transportation and structural composite panels.

Available in 2' x 4' sheets of individual small blocks which are bonded to a light scrim fabric that holds the blocks together while laminating. Sheets of this core will conform to practically any simple curve and most gradual compound curves.

1/4" BALSA WOOD 2' X 4' SHEET 264 33 48308  
3/8" BALSA WOOD 2' X 4' SHEET 264 33 48315  
1/2" BALSA WOOD 2' X 4' SHEET 200 25 48325  
3/4" BALSA WOOD 2' X 4' SHEET 136 17 48335  
1" BALSA WOOD 2' X 4' SHEET 104 13 48345  







Balsa core refers to a type of structural core material used in various applications, including the construction of lightweight and strong composite structures. Balsa wood, specifically, is used as the core material. Here are some key characteristics and uses of balsa core:

  1. Lightweight: Balsa wood is known for its exceptional lightweight properties. This makes it an attractive choice for applications where weight is a critical factor, such as in aerospace, marine, and automotive industries.
  2. Strength-to-Weight Ratio: Balsa wood has an excellent strength-to-weight ratio, which means it can provide good structural integrity while keeping the overall weight of a structure or component low. This characteristic is especially important in applications where both strength and weight are essential considerations.
  3. Shock Absorption: Balsa wood has natural shock-absorbing properties due to its cellular structure. This makes it suitable for use in applications where impact resistance is necessary, such as in boat hulls or aerospace components.
  4. Thermal Insulation: Balsa wood also has some thermal insulation properties, making it useful in applications where temperature control is important.
  5. Ease of Shaping: Balsa wood is relatively easy to shape, cut, and work with. This makes it a versatile material for creating complex shapes and designs in composite structures.
  6. Sandwich Construction: Balsa core is often used in sandwich construction, where it is sandwiched between layers of composite materials like fiberglass or carbon fiber. This results in a composite structure that combines the strength and stiffness of the outer layers with the lightweight core material.

Common applications of balsa core include:

  • Boat Building: Balsa core is frequently used in boat hulls and decks to provide structural support while minimizing weight.
  • Aerospace: Balsa core is used in the construction of aircraft components like wings, tail sections, and interior panels to reduce weight without sacrificing strength.
  • Wind Energy: Balsa core can be found in the blades of wind turbines, where its lightweight and strong properties are beneficial.
  • Automotive: Some high-performance automotive components, such as body panels and chassis parts, may use balsa core to reduce weight and improve fuel efficiency.
  • General Composites: Balsa core is also employed in various other composite applications, such as in the construction of lightweight architectural panels and sports equipment like surfboards and kiteboards.

Overall, balsa core is valued for its combination of strength, lightweight properties, and ease of use in composite construction, making it a popular choice in various industries where these attributes are critical.




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Disclaimer: The information contained herein and provided by RAYPLEX LTD is considered accurate.
However, no warranty is expressed or implied regarding the accuracy of the data, the results to be obtained
by the use thereof, or that any such use will not infringe any patent. Before using, user shall determine
the suitability of the product for the intended use and user assumes all risk and liability whatsoever
in connection therewith.




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