3D-ADD AA3, Adhesive & Interfacial Promoter for Difficult Surfaces

3D-ADD AA3 is a high-performance adhesion-promoting additive with vitrimeric catalytic functionality, designed for advanced photopolymer formulations used in SLA, DLP and LCD 3D printing systems.

The material is engineered to enhance interfacial bonding on challenging substrates such as metals, glass, ceramics and engineered polymers, while simultaneously enabling dynamic network exchange in vitrimer-based systems.

This formulation combines adhesion promotion with latent catalytic activity, supporting improved mechanical integrity, reduced delamination and enhanced reprocessability in advanced resin systems.

Designed for incorporation into photopolymer resin systems used in vat photopolymerization (SLA, DLP and LCD), within professional and industrial environments requiring enhanced adhesion and/or dynamic network behavior.

• Adhesion improvement on metal, glass and ceramic substrates
• Composite and highly filled resin systems
• Vitrimeric and reprocessable photopolymers
• Multi-material and hybrid 3D printing workflows

• Density: 0.90–1.20 g/cm³, depending on formulation and, where applicable, selected version (ISO 1675)
• Color (APHA): ≤14
  (ISO 6271)
• Viscosity: ~1,300 mPas at 23°C ± 2°C (ISO 3219)
• Form: liquid additive
• Molecular weight (GPC): ~1,860 g/mol
• Acid value: ≤300 mg KOH/g

• Refractive index (nD²⁵): ~1.467

• Improved adhesion on inorganic and low-reactivity substrates
• Enhanced interfacial bonding in composite systems
• Reduction of delamination and edge lifting
• Latent catalytic activation for dynamic network exchange (vitrimers)
• Supports stress relaxation and reprocessability in thermally activated systems

• Recommended loading: 1–10 wt% (depending on base resin and substrate)
• Typical range for standard resins: 1–5 wt%
• Typical range for filled composites: 3–8 wt%
• Typical range for vitrimer systems: 3–10 wt%
• Start at low loading and adjust based on adhesion and curing performance

• Adhesion-promoting functional additive
• Latent catalytic component for vitrimer systems
• Compatible with standard photopolymer chemistries
• Suitable for hybrid and advanced network architectures

• Compatible with SLA, DLP and LCD printing technologies
• Incorporates into radical, hybrid and dual-cure systems
• Minimal impact on cure depth at optimized loadings
• May slightly moderate cure kinetics due to acidic functionality
• Requires formulation adjustment of photoinitiator system if needed

Material performance depends on formulation composition, photoinitiator system, exposure conditions, printer type and post-processing workflow. Adhesion and curing behavior must be validated within the final resin formulation and application.

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 performance and suitability must be validated by the user according to the intended application and formulation.

Use these related 3Dresyns pages to navigate adjacent material and process routes within the same technical workflow.

• Functional Additives
• Functional modifiers

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)