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Tough

Product catalog summary

Material Overview: Tough Resin is designed for rugged prototyping, balancing strength and compliance. It is ideal for creating strong, functional parts and assemblies that can withstand brief periods of stress or strain. The resin is priced at $175 per liter.

Mechanical Properties: The resin exhibits different mechanical properties in its green and post-cured states. Key metrics include:

Ultimate Tensile Strength: 34.7 MPa (green), 55.7 MPa (post-cured)
Tensile Modulus: 1.7 GPa (green), 2.7 GPa (post-cured)
Elongation at Break: 42% (green), 24% (post-cured)
Flexural Strength at 5% Strain: 20.8 MPa (green), 60.6 MPa (post-cured)
Flexural Modulus: 0.6 GPa (green), 1.6 GPa (post-cured)
Notched IZOD Impact: 32.6 J/m (green), 38 J/m (post-cured)

These properties are measured according to ASTM standards.

Thermal Properties: The resin's thermal properties include:

Heat Deflection Temperature at 1.8 MPa: 32.8°C (green), 45.9°C (post-cured)
Heat Deflection Temperature at 0.45 MPa: 40.4°C (green), 48.5°C (post-cured)
Thermal Expansion (23 – 50°C): 159.7 µm/m/°C (green), 119.4 µm/m/°C (post-cured)

Solvent Compatibility: The resin's resistance to various solvents is measured by weight gain over 24 hours. Key findings include:

Acetic Acid (5%): 2.8% weight gain
Acetone: sample cracked
Isopropyl Alcohol: 2.1% weight gain
Diethyl glycol monomethyl ether: 6.6% weight gain
Other solvents like Diesel, Mineral Oil, and Xylene showed less than 1% weight gain.

Notes: Material properties can vary based on part geometry, print orientation, print settings, and temperature. Data was obtained from parts printed using Form 2, 100 µm, Tough settings, with and without post-curing.

Catalog excerpts

MATERIAL DATA SHEET Tough Tough Resin for Rugged Prototyping $175 / L Tough Resin balances strength and compliance, making it the ideal choice for prototyping strong, functional parts and assemblies that will undergo brief periods of stress or strain. Sturdy prototypes Interference and press fits To the best of our knowledge the information contained herein is accurate. However, Formlabs, Inc. makes no warranty, expressed or implied, regarding the accuracy of these results to be obtained from the use thereof.

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