3D-ADD ACA1 , Air Cure Accelerator for photopolymer 3D resin Systems

3D-ADD ACA1 is an advanced reactive additive designed to accelerate and improve curing of 3D resin systems in ambient air.

It functions as an oxygen-tolerant air-cure accelerator, promoting complete surface hardening even without nitrogen or inert-gas protection. It is optimized for LED 385–405 nm curing systems and suitable for engineering, dental, bio-based, and circular 3D resin formulations.

Designed for use in LED-curable 3D resin systems under ambient air conditions, including SLA, DLP and LCD workflows at 385–405 nm. Suitable for engineering, dental, biomedical, bio-based, circular and self-healing resin formulations.

• 3D printing resins for engineering, dental and bio-based applications cured in air
• Dental materials including light-curable restoratives, coatings and adhesives
• Bioprinting and biomedical R&D systems requiring oxygen-tolerant curing
• Functional coatings and circular or self-healing resin systems requiring improved curing efficiency in ambient air

• Density: 0.90–1.20 g/cm³, depending on formulation and, where applicable, selected version (ISO 1675)
• Appearance: clear, low-viscosity liquid
• Typical addition: ≈ 2 % by weight
• Odor: none to faint
• Shelf life: 12 months unopened in dry, dark storage (< 25 °C)

• Air-tolerant accelerator enabling full curing in open-air conditions without nitrogen purge
• Faster and deeper cure improving conversion and surface hardening under low-intensity LED light
• Non-yellowing and low-odor
• Improved surface hardness reducing tack and incomplete top-layer cure
• LED-optimized for 385–405 nm SLA, DLP and LCD printers
• Universal compatibility suitable for common 3D resin systems, including circular and self-healing types
• Provides complete surface cure in air with LED 385 nm and 405 nm sources
• Delivers faster conversion and higher surface hardness throughout the print
• Improves gloss, uniformity, and durability of coatings and thin layers
• Eliminates the need for nitrogen purging, cover films, or prolonged post-curing
• Optimized for low-energy LED curing, reducing power use and CO₂ footprint
• Removes inert-gas curing steps for lower environmental impact
• Compatible with Circular and Depolymerisable 3Dresyns

• Compatible with most LED-curable 3D resin systems
• Synergistic with Fine Tuner FT1 or an alternative Fine Tuner accelerant
• Improves cure uniformity and surface quality without affecting viscosity, color, or post-process performance
• No interference with coatings, fillers, or subsequent finishing steps
• Avoid moisture and oxidizing materials
• Consult MSDS before handling
• Ensure that your 3D resin contains enough Fine Tuner FT1 or an alternative Fine Tuner accelerant

• Non-corrosive and non-flammable under normal use
• Not classified as CMR

Performance depends on the resin system, curing conditions and formulation design. Ensure that your 3D resin contains enough Fine Tuner FT1 or an alternative Fine Tuner accelerant.

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.

3D-ADD ACA1 is supplied as a reactive additive for integration into existing LED-curable 3D resin systems. Applications that require a dedicated air-cure or accelerated formulation, or specific mechanical, optical, thermal or processing targets beyond what the additive provides on its own, can be addressed through a custom-designed material.

For these cases, 3Dresyns develops customized resin and additive systems according to customer specifications through the Customization Services program: Customization Services.

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)