Fine Tuner FT4 Bio, ultra safe hydrophobic bio photo accelerant up to 500 nm

Product description

Fine Tuner FT4 Bio is a hydrophobic (ultra-low water absorption), 100% biocompatible photo accelerant additive designed to increase cure speed in high-power SLA, DLP, LCD and Inkjet 3D printing systems.

The formulation provides fast curing kinetics across a broad spectral range (150–500 nm), covering far, medium and near UV as well as visible light sources including LEDs, lasers and DLP projectors.

Fine Tuner FT4 Bio is the hydrophobic counterpart of Fine Tuner FT4 Bio HP, offering similar kinetic performance with enhanced resistance to water absorption, making it particularly suitable for moisture-sensitive and hydrophobic biocompatible systems.

Application framework

Designed for use in vat photopolymerization systems (SLA, DLP, LCD and Inkjet), particularly in high-power printers (>8 mW/cm²) and hydrophobic biocompatible resin systems requiring safe and efficient cure acceleration.

Typical applications

• Increasing cure speed in hydrophobic biocompatible 3D resin systems
• High-power SLA and DLP printing workflows
• Moisture-sensitive or low water absorption applications
• Bioplotting and biofabrication systems
• Low and medium power systems using higher additive loadings

Recommended use guidelines

• Recommended wavelength range: 150–500 nm
• Compatible with UV and visible light systems (LEDs, lasers, DLP projectors, daylight LCDs)
• Optimal for high-power printers (>8 mW/cm²)
• Suggested dosage in high-power systems: 0.5–1 wt%
• Suggested dosage in low-power systems: 1–2 wt%
• High loading option for low-power systems: >4–8 wt%
• Add progressively and mix thoroughly before evaluation
• Avoid overdosing to prevent overcure and loss of dimensional accuracy

Functional performance characteristics

• High cure acceleration across UV and visible spectrum
• 100% biocompatible and non-cytotoxic formulation
• No hazard pictograms or risk phrases
• Hydrophobic behaviour with ultra-low water absorption
• Suitable for moisture-sensitive biomedical applications
• Flexible performance tuning via dosage control

Processing and handling performance

• Optimized for high-power SLA and DLP systems
• Can be used in low-power systems at higher dosage
• Compatible with SLA, DLP, LCD, mLCD and Inkjet workflows
• Essential for printers with fixed exposure parameters
• Supports stable processing in biocompatible resin systems

Physical and chemical characteristics

• Hydrophobic additive with ultra-low water absorption
• Ultra-safe formulation with no classification labels
• Very low cytotoxicity profile

Packaging and use format

• Supplied as a kit
• Includes additive, one graduated beaker and one empty 250 mL black bottle
• Kit designed for safe mixing, storage and protection from daylight

System compatibility note

For water-soluble and biocompatible accelerant systems, refer to: Fine Tuner FT5 Bio WS.

Testing & processing disclaimer

Cure behaviour, print speed and final part performance depend on resin formulation, printer irradiance, wavelength, exposure conditions and post-processing workflow. Optimization must be performed under real printing conditions.

Disclaimer

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

Document reference: TDS-FT4-BIO-EN | Version: 1.0 | Last updated: March 2026