3Dresyn 2PP XL2 Bio, Biocompatible crosslinker for increasing the rigidity & deflection temperature of two photon polymerization 3D resins

Product description

3Dresyn 2PP XL2 Bio is a biocompatible fast and rigid crosslinker for increasing the rigidity, heat deflection temperature and the aspect ratio without deformation of 2PP 3D resins.

Its use increases the writing speed of slow 2PP resins, as well as their rigidity, hardness, physical and mechanical properties, such as deflection temperature, compression and chemical resistance. It also decreases the laser power threshold and permits the printing of high detail and high aspect ratio nano and submicron structures with low laser powers of <10 mW.

3Dresyn 2PP XL2 Bio is normally used up to 5-15% dosage, or more depending on rigidity specifications for certain nano thickness, and it is used for custom adjusting the rigidity of 2PP 3Dresyns.

Application framework

Designed for use in two photon polymerization workflows as a crosslinker for rigidity, heat deflection temperature and aspect ratio enhancement, and also as a 2PP biocompatible photocurable resin negative photoresist for high precision additive manufacturing of ultra rigid high aspect ratio 3D nano and microstructures.

Typical applications

• Increasing the rigidity of 2PP 3D resins
• Increasing the heat deflection temperature of 2PP 3D resins
• Increasing the aspect ratio without deformation of 2PP 3D resins
• High precision additive manufacturing of ultra rigid high aspect ratio 3D nano and microstructures
• Dip-in two-photon lithography DTPL / Dip-in Laser Lithography DiLL
• Conventional Two Photon Lithography TPL systems

Measured mechanical properties

• Tensile strength: <60 MPa (ISO 527-1 / ISO 527-2)
• Flexural strength: <140 MPa (ISO 178)
• Young’s modulus: <6500 MPa (ISO 527)
• Elongation at break: <2% (ISO 527)
• Shore hardness: D90 (ISO 868)

Measured physical properties

• Viscosity, LV version: <1500 mPas at 23°C ± 2°C (ISO 3219)
• Viscosity, HV version: <3500 mPas at 23°C ± 2°C (ISO 3219)
• Heat deflection temperature: <290ºC (ISO 75)
• Water absorption: <15 µg/mm3 (ISO 20795-1)
• Water solubility: ≤ 1,6 µg/mm3 (ISO 20795-1)
• Shrinkage: <15%
• Optical transparency: 100% from 440 nm onwards into the Near Infrared NIR
• Achievable feature sizes: 100-200 nm

Functional performance characteristics

• Ultra effective crosslinker: minimum dosage is required for increasing rigidity and deflection temperature
• Ideal used alone as 2PP biocompatible photocurable resin negative photoresist for high precision additive manufacturing of ultra rigid high aspect ratio 3D nano & microstructures with ultra high rigidity and deflection temperature
• Excellent balance of resolution shape accuracy and writing speed
• Photoreactive from 200 to 410 nm with Fine Tuner 2PP FT8 Bio (single 1 photon absorption)
• Photoreactive from 600 to 810 nm with Fine Tuner 2PP FT8 Bio (two photon absorption)
• Decreases the laser power threshold
• Permits the printing of high detail and high aspect ratio nano and submicron structures with laser powers of <10 mW
• Clear, non yellowing
• Durable

Processing and handling performance

• Normally used up to 5-15% dosage, or more depending on rigidity specifications for certain nano thickness
• Designed for Dip-in two-photon lithography DTPL, also referred as Dip-in Laser Lithography DiLL, where the 2PP resin is immersed upside down in the microscope objective
• Designed for conventional 2PP systems, also refered as Two Photon Lithography TPL, where the 2PP resin is positioned upright on the substrate
• Easy handling by direct drop casting
• Good adhesion on glass and other substrates
• Printable by most commercial two photon polymerization printers with wavelengths from 600 nm to 800 nm
• Supplied at different writing speeds: fast, intermediate, slow, and non reactive for custom control of writing speed and resolution
• Tunable with the free sampled Fine Tuner 2PP FT8 Bio for custom adjustment of writing speed
• Tunable with the free sampled Fine Tuner 2PP LB3 Bio for maximum resolution with submicron feature sizes
• Supplied in a relatively low and high viscosity version
• Choose a LV low viscosity version for easy development or cleaning of uncured resin with conventional 2PP upright configurations
• Choose a HV high viscosity version for upside down DiLL configurations
• Easy removal of uncured resin with conventional developers such as isopropanol IPA and propylene glycol methyl ether acetate (PGMEA)
• Ideally use our biocompatible Cleaning Fluid UNW1 Bio to preserve transparency, prevent whitening and chemical attack of IPA and conventional alcohols
• It is supplied as a kit, which contains the product, one graduated beaker and one empty 100 mL opaque bottle to measure, mix, keep and protect 2PP 3D resins from daylight
• Please do not expose any 3D resins to natural or room light to prevent their curing.

Chemical and safety characteristics

• Biocompatible
• Safe and biocompatible, compliant with the Quality requirements of FDA, ISO 20795, 13485 & 10993
• Synthetic
• Hydrophobic
• Organo-tin free

Testing & processing disclaimer

Final writing speed, resolution, feature size, rigidity enhancement, heat deflection temperature, aspect ratio, laser power threshold, adhesion, printability and cleaning performance depend on the selected formulation, printer configuration, wavelength, substrate, developer and full processing workflow. Performance must be validated by the user for each specific application.

Disclaimer

This material is supplied as a professional manufacturing material and is not marketed as a finished medical device. Final part performance and suitability must be validated by the user according to the intended application.

Document reference: TDS-3DRESYN-2PP-XL2-BIO-EN | Version: 1.0 | Last updated: March 2026