Fine Tuner 2PP FT8 Bio, Biocompatible fast photo accelerant for two photon polymerization

Fine Tuner 2PP FT8 Bio is a fast photo accelerant additive designed for two-photon polymerization (2PP) workflows. It is recommended for increasing the cure speed of 3Dresyns 2PP resins and is essential in 2PP printers to achieve maximum control of writing speed.

The additive is available in two optimized spectral versions:

• FT8 Bio VIS-NIR: optimized for commercial 2PP systems operating from 600 nm to 800 nm
• FT8 Bio 1035: optimized for commercial and research 2PP systems operating at 1035 nm

The additive permits gradual increases in writing speed by dosage adjustment, with the trade-off that overdosage may cause overcure beyond limits/specifications and result in loss of resolution, precision and dimensional accuracy.

FT8 Bio VIS-NIR is designed for incorporation into two-photon polymerization workflows using 2PP printers operating with laser wavelengths in the 600-800 nm range, including high and low laser power systems.

FT8 Bio 1035 is designed for incorporation into two-photon polymerization workflows using 1035 nm femtosecond laser systems employed in advanced nano/microfabrication and high precision research environments.

• Increasing cure speed of 3Dresyns 2PP resins
• Improving writing speed control in 2PP printers
• Permitting microfabrication with high integrity and definition at low laser powers
• Supporting calibration of printing speed, resolution, precision and dimensional accuracy in 2PP workflows
• Extending process flexibility across commercial visible/NIR and 1035 nm laser platforms

FT8 Bio VIS-NIR: recommended for 2PP printers having laser wavelengths in the 600-800 nm range

• Recommended dosage steps: 0.5% in high laser power 2PP printers
• Recommended dosage steps: 1% in low laser power 2PP printers
• Normally used at small dosage from 0.5 to 4% by weight
• Increase dosage gradually to increase writing speed
• Avoid over dosage to prevent overcure and potential loss of resolution, precision and dimensional accuracy

FT8 Bio 1035: recommended for 2PP printers operating at 1035 nm

• Normally used at small dosage from 1 to 6% by weight

• Density: 0.90–1.20 g/cm³, depending on formulation and, where applicable, selected version (ISO 1675)
• Viscosity: optimized within the processing range required for the intended printing process and application

• Permits the microfabrication of structures with high integrity and definition even using low laser powers at 10-15 mW
• Provides a compromise between writing speed and shape accuracy
• Very high quantum yield of formation of initiating species
• Excellent kinetics with even low laser powers <1 mW
• Does not exhibit any linear absorption >430 nm
• 100% transparent in the visible range from 430 nm up to 800 nm
• 100% transparent in the near infrared range above 800 nm
• FT8 Bio VIS-NIR: effective two-photon absorption cross-section from 600 nm up to 800 nm
• FT8 Bio VIS-NIR: excellent two-photon polymerization over a large spectral range in the visible / near infrared (600-800 nm range)
• FT8 Bio 1035: optimized response for two-photon polymerization at 1035 nm femtosecond laser wavelength
• FT8 Bio 1035: suitable for advanced high wavelength nano/microfabrication workflows
• Typical power thresholds with most 2PP 3Dresyns depend on resin, wavelength, dosage and optical setup
• Available as FT8 Bio VIS-NIR and FT8 Bio 1035 versions
• 10 g format normally used at dosages from 0.5 to 4% by weight

• Suitable for visible, near infrared and selected 1035 nm 2PP laser systems depending on the version selected
• Please do not expose any 3D resins to natural or room light to prevent their curing

• Easy mixing and broad compatibility with 2PP 3D resins
• Recommended for increasing the cure speed of 3Dresyns 2PP resins
• Essential in 2PP printers to have maximum control of writing speed
• Calibration STL files are available for confirmation of printability and for determining xyz printing resolution, precision and dimensional accuracy before printing user designs
• Detailed IFU is provided upon request and after ordering for selecting the best printing settings of 2PP resins in a specific 2PP printer
• The IFU provides a fingerprint of the achievable printing speed, resolution, precision and dimensional accuracy of the chosen 2PP 3D resin in the user printer
• The optimum printing settings for the chosen balance of printing speed, resolution, precision and dimensional accuracy are selected by the user following the IFU and basic calibration steps

Final writing speed, cure behavior, resolution, precision and dimensional accuracy depend on resin formulation, dosage, laser power, wavelength, printing settings and calibration workflow. Optimization must be performed under actual printing conditions.

This product is supplied as a formulation additive for professional use in two-photon polymerization and photopolymer engineering workflows. It is not a standalone printable material. Final printing performance and suitability must be validated by the user according to the intended application.

This technical datasheet should be used together with the relevant processing, calibration, safety and workflow documentation available in the 3Dresyns® Resources section.

Access the 3Dresyns® Technical Resources (IFU, calibration, CRT, post-processing and troubleshooting)