General Information

MarkForged's Kevlar is the most bendable of the fibers that are can be printed with our printers.

Kevlar is a high strength material that is also able to bend or provide some flexability without snapping.

Kevlar fiber reinforcement is available on the Mark Two and X7 printers.

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Material Specifications

The following chart outlines the product specifications for Kevlar:

Property Test Standard Kevlar
Tensile Strength (MPa) ASTM D3039 610
Tensile Modulus (GPa) ASTM D30309 27
Tensile Strain at Break (%) ASTM D3039 2.7
Flexural Strength (MPa) ASTM D790* 190
Flexural Modulus (GPa) ASTM D790* 26
Flexural Strain at Break (%) ASTM D790* 2.1
Compressive Strength (MPa) ASTM D6641 97
Compressive Modulus (GPa) ASTM D6641 28
Compressive Strain at Break (%) ASTM D6641 1.5
Heat Deflection Temperature (°Celcius) ASTM D648
Method B
Density (g/cm^3) N/A 1.25

*Measured by a method similar to ASTM D790

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