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Engineering SLA Series – Tough Resin

FormFutura’s 100μm High Light Transmittance FEP film is specifically engineered for 3D printing and combines the highest transparency rate in FEP film with excellent light transmission properties.


When a product is out of stock, it is usually restocked within two weeks.

SKU: Engineering SLA Series - Tough Resin

Formfutura Tough Resin is an engineering type of photopolymer resin that is specifically developed to work with all open source SLA, DLP, and LCD 3D Printers in the range of 385 – 405nm. Our Tough Engineering resin is extremely transparent and perfectly balances a high impact strength with semi-flexibility.

Its high level of toughness makes Formfutura Tough Resin ideal for creating strong and functional parts that will be exposed to repeatedly brief periods of intense stress or strain

Key features

  • High impact resistance
  • Good UV and weather resistance
  • Good fatigue resistance
  • Extremely transparent with virtually no discoloration and/or yellowing
  • High dimensional accuracy and low shrinkage
  • Almost odorless processing
  • Compatible with all open-source SLA, DLP, and LCD 3D printers in the range of 385 – 405nm



  • Snap-fit assemblies
  • Tooling
  • Functional prototyping
  • Protective cases
  • Outdoor parts
  • Short-run manufacturing


Resin properties (uncured liquid)

  • Viscosity: 1000 cps at 25°C
  • Density: 1.12 g/cm2


Mechanical properties

Test method on post cured objects through 10 minutes high power mercury curing.


Properties Typical Value Test Method
Glass transition temperature (Tg) 32°C ASTM D7028
Water absorption 0.50% ASTM D570-98
Impact strength (IZOD notched) 40 J/m ASTM D256A
Tensile strength 45 MPa ASTM D638M
Tensile Modulus 1.4 GPa ASTM D638M
Elongation at break 25% ASTM D638M
Flexural Strength 35 MPa ASTM D790M
Flexural Modulus 900 MPa ASTM D2240
Shore D Hardness 68 ASTM D2240

Please note that the above-displayed values can vary with individual machine processing, post-curing parts,  geometry, print orientation, print settings, and temperature.

Preparation(s) before starting to print

  • Shake the bottle for at least 2 minutes before each use.
  • After shaking the bottle, leave the resin to rest for 10 minutes to let air bubbles get out of the resin
  • The resin can be poured back from the vat into the bottle once your print is finished
  • Always use protective measurements like safety glasses and nitrile gloves when handling resins.

Anycubic Photon Mono SE

First / Burn-in Layers: 4x to 6x for 65 to 70 Seconds
Normal Layers: 7.5 to 8.5 Seconds
Lifting Distance: 6mm
Light-off Delay: 1
Bottom Light-off Delay: 3

Elegoo Mars 2 / Pro

First / Burn-in Layers: 4x to 6x for 75 Seconds
Normal Layers: 8 to 10 Seconds
Lifting Distance: 6mm
Light-off Delay: 1
Bottom Light-off Delay: 3


  • We do advise you to post-process your 3D print in order to achieve the material properties
  • Rinse your 3D printed object in IPA or (Bio)Ethanol for approximately 5 minutes
  • An ultrasonic cleaner is preferred/recommended
  • Make sure that IPA and/or (Bio)Ethanol rinsed objects are perfectly dry before further post-curing
  • Place the rinsed parts in a well-ventilated area for at least 30 minutes, or use pressurized air for at least 2 minutes
  • Cure your object in a high power curing chamber for approximately 20-30 minutes at 65° C
  • The preferred curing wavelength is between 300-410nm



Please always be aware that when 3D printing with resins that you are working with chemicals and that you should always be cautious and use the personal protective equipment as stipulated in our safety data sheets.

  • Always wear Respiratory Protection when sanding/cutting the resin object.
  • Always use nitrile gloves when handling resins and uncured resin objects.


Product export information

HS Code: 2916140090 Description: Resin for 3D Printing Country of origin: the Netherlands
Technical Datasheet:

Safety Datasheet: