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  2. HiWood Epoxy Prepreg Wood Fiber Paper (UD)

HiWood Epoxy Prepreg Wood Fiber Paper (UD)

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HiWood Epoxy Prepreg Wood Fiber Paper (UD) is a continuous wood fiber reinforcement pre-impregnated with epoxy. It is primarily used to create continuous wood fiber-reinforced composite structures through vacuum bagging, autoclave processing, and other techniques, eliminating the need for additional impregnation.

The polar groups in epoxy enable strong interfacial bonding with wood fibers, ensuring effective adhesion within the composite. This Epoxy prepreg wood fiber paper comes in two thickness options: 0.09mm (88g/cm²) and 0.13mm (145g/cm²).

Price listed below is per SQM.

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  • Areal density

This combination does not exist.

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45GPa 

Material performance

Sustainable

bio-based, biodegradable
 and recyclable

4.2% - 4.5%

Loss factor

<1.3g/cm³

Density
  • KEY ADVANTAGES

    • Excellent specific strength & modulus
    • Superior vibration damping
    • Wood aesthetic appearance
    • Easy to process
    • Environmentally friendly

  • ADVANCED WOOD MODIFICATION TECHNOLOGY

    Wood's naturally rigid cellulose structure offers inherent strength. HiWood uses advanced wood modification technology to enhance its properties, achieving superior strength, durability, and fire resistance, making HiWood an exceptionally versatile and high-performance material.

  • THERMOSET PREPREG TECHNOLOGY

    HiWood employs advanced prepreg technology, offering highly efficient composite manufacturing. Through heating, the thermoset polymers flow and evenly penetrate the HiWood fiber paper, which subsequently solidifies into a high-performance composite. The thermoplastic prepreg offers recyclability as it can be repeatedly reshaped.

SPECIFICATIONS – 88g / m2

Lenght

1200-1500 mm

Width

120–220 mm

Consolidated thickness*

0.055~0.065 mm

Fiber direction

UD along lenght

Color

Natural wood

Surface texture

Natural wood

COMPOSITION

Wood

65-75 wt.%

Epoxy

25-35 wt.%

% Bio-content

65-75 wt.%

% Biodegradability

65-75 wt.%

*It is measured at a molding pressure of 0.8 MPa.

Please adjust the number of layers based on the actual batch thickness and molding pressure.

SPECIFICATIONS – 145g / m2

Lenght

1200–1500 mm

Width

120–220 mm

Consolidated thickness*

0.083~0.095 mm

Fiber direction

UD along length

Color

Natural wood

Surface texture

Natural wood

COMPOSITION

Wood

70-80 wt.%

Epoxy

20-30 wt.%

% Bio-content

70-80 wt.%

% Biodegradability

70-80 wt.%

​

GENERAL PROPERTIES – 88g / m2

Density

1.25-1.35 g/cm3

ISO 527-5

Areal density

80-96 g/m2

-

Tensile strength

300-450 Mpa

ISO 527-5

Tensile modulus

40-50 Gpa

ISO 527-5

Flexural strength

400-500 Mpa

ISO 14125

Flexural modulus

35-45 Gpa

ISO 14125

Note: Tensile properties were theorized from the known rule of mixture based on the tensile measurements of laminate manufactured from wood fiber papers. They should serve only as guidelines. Performance is affected by equipment, environmental conditions, etc.


GENERAL PROPERTIES – 145g / m2

Density

1.25-1.35 g/cm3

ISO 527-5

Areal density

120-170 g/m2

-

Tensile strength

300-450 Gpa

ISO 527-5

Tensile modulus

40-50 Gpa

ISO 527-5

Flexural strength

400-500 Mpa

ISO 14125

Flexural modulus

35-45 Gpa

ISO 14125

​

  • RECOMMENDED MANUFACTURING METHODS

  • COMPRESSION MOLDING
    Place the HiWood Prepreg into the mold cavity, close the mold, and apply pressure while heating to allow the resin to flow and fill the cavity. After cooling, the cured product is easily demolded. This efficient and versatile process supports the mass production of high-precision, high-performance HiWood composite products. 

  • AUTOCLAVE MOLDING
    Trim the HiWood Prepreg to size, layer it on the mold, and compact it. Then, place it in a pressure chamber where it is formed under controlled heat and pressure, allowing the prepreg to melt. This method produces high-quality HiWood composite parts with precise tolerances and minimal void content, ensuring optimal mechanical performance.

  • HAND LAY-UP
    HiWood Prepreg and HiWood Fiber Paper are suitable for this process. the HiWood materials are laid on the mold and heated to melt the prepreg, or resin is applied with brushes and rollers. This cost-effective method is versatile for producing various HiWood composite products, from small to large sizes.

  • VACCUM BAGGING
    Lay the HiWood Prepreg onto the mold surface and cover it with a vacuum bag film. Apply vacuum pressure to remove trapped air and compact the layers. The assembly is then heated, typically in an oven, to cure the resin. This method enhances fiber-resin contact and reduces void content, resulting in strong, lightweight HiWood composite parts with consistent quality. Vacuum bagging is well-suited for complex geometries and medium-volume production.

​

For complete information, please download the TDS PDF file. If you have any further questions about the product or its application, feel free to contact us directly — we’re here to help.


TDS incl. manual HiWood Epoxy Prepreg Fiber Paper (UD), 88g

 Download

TDS incl. manual HiWood Epoxy Prepreg Fiber Paper (UD), 145g 

 Download

Engineered to Outperform.

Engineered to Outperform.

Stronger Than Flax. Still Natural.

HiWood

Reengineering wood's natural properties delivers groundbreaking stiffness and flexural strength.

+40 GPa

HiWood reinforced composite.


~20 GPa

Flax fiber reinforced composite.


Flax Fiber

Limited mechanical performance has restricted widespread adoption in high-performance applications.

The Natural Fiber Upgrade: HiWood.

HiWood

Reengineering wood's natural properties delivers groundbreaking stiffness and flexural strength.

+40 GPa

HiWood reinforced composite.

~20 GPa

Flax fiber reinforced composite.

Flax Fiber

Limited mechanical performance has restricted widespread adoption in high-performance applications.

The Natural Fiber Upgrade: HiWood.



Excellent
specific strength
& modulus.


Twice the strength.
Half the weight.



Good vibrational
damping.




Naturally quiet.
Remarkably stable.



Warm wood
aesthetic.




Looks like wood.
Performs beyond.



Easy
to process.


Shape it. Cut it.
Seamlessly.



100%
Bio-based.




Fully circular.
Beautifully sustainable.



Environmentally
friendly.




Nature approved.
Performance guaranteed.

FAQ Questions

More Questions? Start Here.

Whether it’s aligning specs or selecting a resin, our team
is here to help you through the details and into production.

Contact us

More Questions? Start Here.

Whether it’s aligning specs or selecting a resin, our team
is here to help you through the details and into production.

Contact us

SHAPED BY NATURE
AND PURPOSE.


Freshape empowers people with accessible, sustainable technologies that improve daily life. We champion autonomy, environmental care, and innovation that uplifts both individuals and the planet.​​