Engineering LCD Resin – Impact 71D

Description

FormFutura’s Engineering LCD Resin – Impact 71D is a durable 3D printing resin. This engineering resin has mechanical properties like ABS with an improved impact strength. Impact 71D resin has excellent machinability properties, and 3D-printed parts can easily be post-processed. Because of its durability, the 3D-printed parts are excellently suitable to drill into. This makes Impact 71D resin a perfect match for 3D printing mechanical and operational parts.

Recommendation

Print Settings

Anycubic Photon Mono SE

50µm
First / Burn-in Layers:6x to 8x 50 to 55 Seconds
Normal Layers: 3.5 to 4.5 Seconds
Lifting Distance: 6mm
Bottom Lift Distance: 8mm
Light-off Delay: 0.5 to 1 Second(s)
Bottom Light-off Delay: 1 to 1.5 Second(s)

Phrozen Sonic Mini 4k

50µm
First / Burn-in Layers:4x to 6x 45 to 55 Seconds
Normal Layers: 7 to 8 Seconds

*If you need the best settings for your 3d printer we highly recommend using the included RERF (Resin Exposure Range Finder) or Resin Exposure Calibration Tool.
This is most likely included with the 3d printer usb stick and or manual.

Preparation

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.

Post-processing

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
Note: The Print will come out very yellow-ish / bright yellow, this will fade over time when exposed to uv light from outside/inside. (this is called Photo Bleaching).

Safety

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.

Mechanical properties

Property	Typical value
Young‘s modulus (Pull)	1300 MPa
Elongation at break	19%
Tensile Strength	41,5 MPa
Charpy impact test	51,3 kJ/m2
HDT	42 °C
Density ρ	1,18 g/cm3
Shore Hardness	71D

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

Specimens are printed on a Phrozon Sonic Mini 4K at 23°C and 50% humidity with 0,05mm layer height and 5 seconds exposure time per layer.
Specimens have been post-cured for 30 minutes with 200W and 405nm UV LED conditioned for 72 hours at 23°C and 50% humidity.