Dutch independent 3D printing material manufacturer Liqcreate has created a new resin called Liqcreate Bio-Med Clear, the newest addition to its 3D printing resin portfolio. Bio-Med Clear is a biocompatible 3D printing resin, ideal for applications that require non-cytotoxic, non-sensitizing and non-irritating features.
Liqcreate Bio-Med Clear is a rigid clear photopolymer resin that can be processed on most resin based 3D printers, Bio-Med Clear is compatible with Digital Light Processing (DLP), Liquid Crystal Display (LCD), and laser based 3D printing systems operating in the range 385-420nm.
Liqcreate Bio-Med Clear 3D printed parts can pass the following biocompatibility tests:
– Cytotoxicity ISO 10993-5:2009
– Sensitization ISO 10993-10:2021
– Irritation ISO 10993-23:2021
As with all biocompatible materials, it is important to follow Liqcreate’s post-processing guidelines. These guidelines can be found on the Liqcreate website here.
What’s more, 3D-printed parts from Bio-Med Clear can be disinfected with commonly used disinfectants and sterilized by steam sterilization using an autoclave. Standard steam sterilization programs have been validated at 121°C / 250 °F and at 134°C / 273°F for this biocompatible resin. Bio-Med Clear also boasts high accuracy and solid dimensional stability.
“Liqcreate Bio-Med Clear is designed to withstand elevated temperatures during steam sterilization, which does not influence final properties and part performance,” comments Jerzy Hul, Chief Scientific Officer at Liqcreate.
Liqcreate Bio-Med Clear processing workflow
To ensure biocompatibility and achieve the properties, it is important for users to follow Liqcreate’s validated workflow instructions.
Firstly, prior to printing, users must shake the resin bottle for 2 minutes, and ensure that parts are 3D printed in an environment between 20-25°C.
Wash and Cure process:
Users should firstly remove the parts from the build platform, and remove any support structures. Next, it is recommended to wash the 3D printed parts for 2 minutes in IPA or Ethanol in an ultrasonic cleaner. These parts should then be washed for a second time in fresh IPA or Ethanol for a further 2 minutes. After washing, the parts should be left to dry under ambient conditions for at least 60 minutes. Finally, users are advised to cure the parts for 30 minutes at 60℃ in the Wicked Engineering Curebox.
Liqcreate advises that, when utilizing the Bio-Med Clear resin to produce regulated medical devices, customers should contact a Liqcreate representative to discuss the application before use.
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