Formlabs Tough 1500 Resin Cartridge

Formlabs Tough 1500 Resin Cartridge

The most resilient material in Formlabs' functional family of Tough & Durable Resins Compatible with Form 2, Form 3/3B, Form 3L/3BL


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Tough 1500 Resin for Resilient Prototyping

Tough 1500 Resin is the most resilient material in our functional family of Tough and Durable Resins. It produces stiff and pliable parts that bend and spring back quickly under cyclic loading.

Tough 1500 Resin is ideal for:

  • Prototypes that repeatedly bend and quickly return to shape
  • Jigs and fixtures requiring repeated deflection
  • Simulating the strength and stiffness of polypropylene (PP)

Technical data:

Due to its high elongation and moderate modulus Tough 1500 Resin is ideal for parts that bend, but require high memory retention. When pushed to its stress limit, Tough 1500 parts will strain significantly before permanently deforming and ultimately breaking.




  • Grey color
  • High Impact Strength
  • Elongation & Spring back


Model RS-F2-TO15
Manufacturer Formlabs


Printer Compatibility Form 2, Form 3/3B
Resin Tank Compatibility Form 2 LT, Form 3 V2
Recommended Lifetime 24 months


Layer Thickness (Microns)
Form 2 100, 50
Form 3 100, 50


Form Wash Settings 10 + 10 min (Wash for 10 minutes on the build platform. Remove parts from the build platform, then wash for 10 more minutes using fresh IPA. Avoid washing Elastic for longer than the recommended time.)
Form Cure Settings 60 minutes at 70 C



  Green² Post-Cured³
Mechanical Properties    
Ultimate Tensile Strength 3771 psi 4786 psi
Tensile Modulus 136 ksi 218 ksi
Elongation at Break 69% 51%
Flexural Properties    
Flexural Strength 2175 psi 5656 psi
Flexural Modulus 58 ksi 203 ksi
Impact Properties    
Notched IZOD 1.3 ft-lbf/in 1.2 ft-lbf/in
Unnotched IZOD 17 ft-lbf/in 26 ft-lbf/in
Thermal Properties    
Heat Deflection Temp. @ 1.8 MPa 93 °F 113 °F
Heat Deflection Temp. @ 0.45 MPa 108 °F 126 °F
Thermal Expansion 63 µin/in/°F 54 µin/in/°F


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