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Formlabs Form Tough Resin
Formlabs Form Tough Resin 169,- Excl. VAT

Formlabs Form Tough Resin

Incl. VAT | FREE shipping in the Netherlands Excl. VAT | FREE shipping in the Netherlands
On business days ordered before 14:00, tomorrow in house
EAN: 0851976006806
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  • Gunstige verzendvoorwaarden en retourbeleid
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  • On business days ordered before 14:00, tomorrow in house
  • Customer service from 10:00 to 17:00

Using Tough Resin

Formlabs Tough Resin is our most durable, adaptive, and impact-resistant material. Similar to ABS, it is ideal for engineering prototypes and has been developed to withstand high stress or strain. This material is perfect when you require great impact resistance for rugged prototyping, and can also be used for snap-fit joints, living hinges and parts that require post-print machining. Tough Resin can be printed at 50 and 100 micron layer heights.

Toughness refers to a material’s ability to absorb energy before fracturing. When a tough material yields, it will undergo some deformation rather than just shattering. In other words, tough materials have a little more “give” than brittle ones.

Toughness is also defined as the area under a stress-strain curve. Tough materials generally have a good balance of strength (the amount of stress a material can withstand) and ductility (the elongation or percentage strain). Because of this, the area under a tough material's stress-strain curve is much larger than that of a very strong material with low elongation. This has a direct correlation to the amount of energy each material can absorb before failure. Formlabs Tough Resin has lower stiffness than the Standard Resins while withstanding more elongation.

Ideal For

  • High-impact/high-stress components
  • Snap-fit functions and living hinges
  • Machining
  • Cyclic loading

Not suitable for

  • Very fine features or thin walls
  • Rigid or stiff prints
  • High-temperature applications
  • Constant loading

Comparison with Other Materials

Tough TOTL021
Tough TOTL012
EnvisionTEC ABS-tuff3 3DS Visijet SL Tough4 Stratasys Digital ABS5
Tensile strength 41.3 MPa 52.2 MPa 48.6 MPa 41.0 MPa 55-60 MPa
Elongation 31% 31% 7% 18% 25-40%
Notched Izod 51.1 J/m 51.1 J/m no data 43.8 J/m 65-80 J/m

Tough Resin has a low Tg (glass transition temperature) and low heat deflection temperature. This means that thin parts under constant load may deform over time. Tough Resin is not intended for applications at elevated temperatures. For best results, alter your model to reinforce or thicken parts. You can use the Design Guide as a reference.


Wash your tough parts as recommended for parts printed with Standard Resins:

  • Cover the rinse tub, shake for 2 minutes and let your part soak for 10 minutes.
  • Move your part to the second rinse basket, shake and repeat for a total soak time of 20 minutes.
  • Remove part(s) from rinse bucket and allow to air dry.

The Tough Resin coloration comes from a pigment, not a dye, so tough parts will not color the IPA.


Especially with tough resin, leaving parts in IPA too long may cause the parts to become flexible and weak.

Finished functional wrench printed in Tough Resin.
Finished functional wrench printed in Tough Resin.

Post-cure your part

Tough parts require about 30 minutes of post-curing in the Formlabs Form Cure or in a similar device. Time to reach full post-cure may also be longer for larger parts. Your tough part will not reach its full mechanical properties without a thorough post-cure.

Type: Engineering Resin
Content: 1 Liter
Version: v5
Color: Semi-transparant blue
Form: Formlabs Form 2, Form 3 & Form 3L
Resin Tank: Formlabs Standard Resin Tank and Formlabs Form 3 Resin Tank
Build Platform: Formlabs Standard Build Platform
Layer resolution: 100 and 50 microns
Form Wash: Optional
Form Cure: Optional
Formlabs Form Tough Resin
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