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Instructions for Use "IFU"

These generic guidelines can be used for our durable 3D resins, with the exception of special resin systems, such as our water soluble sacrificial 3D resins for printing sacrificial molds and other high tech applications, which need specific and more detailed protocols and instructions for use:

1. Printing

Most of our 3Dresyns are photopolymer or light-curing resins which have been designed for SLA, DLP, LCD and Inkjet printers working with lights from 200 to 420 nm and higher upon request, including wavelengths at 385 and 405 nm. 

3D printing guidelines are available for selecting in just few easy steps the optimum printing settings

    2. Processing

    General Information

    The final physical and mechanical properties of any 3D printed material depend, among other things, on the printer specifications and printing settings, such as wavelength, power, exposure time, cleansing protocol (chemicals used for cleansing, time and temperature used during cleaning, etc) and  light post-processing or light box curing (wavelength, power, postcuring time, temperature, dry or dipping, etc).  

    Our services vary from basic online support services where your technical questions will be answered directly related to fine tuning, optimisation of printing settings, postcuring and cleansing process to a more in depth consulting service where detailed recommendations of the right 3D Printing System will be provided for your specific needs and goals. Our services can include recommendations of all the required instrumentation: 3D printer with light power measurement and regulation, temperature control, washing and postcurintg units and all the basic tools and training for start printing professionally straight away.

    3D print cleaning process: Cleaning 3D prints

    Our Cleaning Fluid Bio is ideal for removing any uncured 3D resin from the surface of prints. It is biocompatible, safe, non flammable and does not cause the loss of the smell sense nor attacks nor damages the mechanical properties nor causes cracking nor fragility to 3d printed parts as isopropanol "IPA" or ethanol.

    3D prints can be rinsed in our Cleaning Fluid Bio for cleaning them without any of the mentioned hassles related to IPA and ethanol. An ultrasonic bath can be used for cleaning parts in our Cleaning Fluid Bio. If IPA or ethanol are used be careful and minimise the cleaning time to <1-2 minutes to avoid damaging the printed parts since IPA and ethanol tend to decrease significantly the mechanical properties of most plastic materials.     



    Light postcuring of printed parts

    If your fresh "green state" prints are not sensible to whitening by solvents such as IPA, ethanol nor by our milder Cleaning Fluid Bio, then you can postcure them inside a clear container in our Cleaning Fluid Bio in a light box,for 30-60 minutes until their stickiness disappears. Ensure that prints are kept at T<60ºC during postcuring to avoid yellowing.

    After enough light postcuring your prints in our Cleaning Fluid Bio they will be dry, non sticky, then they will be ready for a fast rinse in or spray with IPA or ethanol to remove any rest of our Cleaning Fluid Bio.

    Important notes:

    As mentioned some fresh "green state" prints may suffer haziness or whitening after printing when cleaned with IPA, ethanol and even with our milder Cleaning Fluid Bio.

    Sometimes, specially thin printed parts can be too soft and "tender" on their surface, being prone to suffer whitening by solvent attack. When this happens the following alternative washing or cleaning process can be used to avoid the whitening of prints:

    IFU for 100% clarity & transparency (without any haziness or whitening) 

    • after printing cut the supports and eliminate by leaking the uncured resin by gravity from the surface of the prints in the upside down position in a thermal oven heated at 50-60ºC for 30 minutes. Prints with complex shapes can be rotated to eliminate the uncured resin from their surface. Pressurised or compressed air can also be used to remove all the uncured resin from the prints.
    • then postcure the dry prints in a normal light box for 30 minutes (optimum: 60 minutes for maximum polymer conversion and biocompatibility). If prints become yellow reduce the postcuring temperature <50ºC and time < 30 minutes and if possible the light power of the light box (or distance from the light source)
    • after light post curing, clean the prints by dipping in our Cleaning Fluid Bio followed by isopropanol or ethanol spray 
    • Alternatively, you may clean parts in isopropanol or ethanol only by spray or by dipping, but acknowledge that thin printed parts can be specially easily attacked and suffer a significant decrease of mechanical properties, so if IPA or ethanol are used, reduce as much as possible the cleaning time.
    • optionally, an ultrasonic bath can be used for speeding up the cleaning process (reduce time to <1-2 minutes when pure isopropanol or ethanol are used).
    • alternatively, it is possible to spray the Cleaning Fluid Bio and/or isopropanol or ethanol using a spray bottle to avoid any contamination with any contaminated residual uncured resin. Spraying ensures that clean Cleaning Fluid Bio, isopropanol or ethanol is always used and reduces the contact time of isopropanol or ethanol with the prints to avoid their damage and reduction of mechanical properties 
    • isopropanol and ethanol have the advantage of their fast evaporation vs our Cleaning Fluid Bio, which does not evaporate, requiring a clean cloth for removing it or alternatively, a fast rinse by dipping or spraying with IPA or ethanol
    • Cleaning Fluid Bio has the advantage of not attacking the prints, besides being non volatile, non flammable and odorless, not causing the loss of the smell sense as IPA and ethanol do. As mentioned, our Cleaning Fluid Bio elimination can be easily done with a fast rinsing with isopropanol or ethanol.

      Afterwards, optionally a deeper chemical postcuring and cleansing can be done with our Cure tester and Purification kit (ideal for ultra safe biocompatible systems)

      Explore our full range of Cleansing products, including cleaning fluids, detoxifiers, antimicrobial Copper additives and.purification kits for chemical "burn out" of any unreacted residual monomers and byproducs.

      After placing your order you may request our detailed  Instructions for Use "IFU"and calibration stl files by email at: info@3dresyns.com