Phrozen Aqua-Ivory 4K is a high-definition standard photopolymer resin in an ivory tone, formulated for 4K resolution LCD/MSLA printers. Its neutral, warm colour makes it the ideal choice for digital sculpting, miniatures and any piece where you need a clean base for painting or post-processing. Low shrinkage, low viscosity and low odour make it especially comfortable to work with in the workshop.
Technical specifications
Parameter
Value
Colour
Ivory
Type
Standard / High Definition 4K
Content per bottle
1 kg
Density
1.1 g/cm³
Viscosity
230–330 cps
Surface hardness
80 Shore D
Tensile modulus
1,037 MPa
Elongation at break
24 MPa
Shrinkage
Low
Odour
Low
Printing technology
LCD / MSLA (UV 405 nm)
What it is used for
Aqua-Ivory 4K is aimed at applications where detail resolution and a neutral base colour are key. Its ivory tone lets you clearly see printed surfaces before painting, makes it easier to spot imperfections, and acts as a perfect base for any subsequent finish.
Figure and character miniatures for board games or collecting
Digital head and bust sculptures
Jewellery prototypes and decorative accessories
Dimensionally precise parts requiring low deformation
Visualisation and product presentation models
Base for hand painting with acrylics or enamels
Light industrial applications demanding high surface hardness (80 Shore D)
How to use it
Shake the bottle well before use (at least 30 seconds) to homogenise the photosensitive components.
Pour the resin into the vat of your LCD/MSLA printer compatible with UV 405 nm. Avoid overfilling.
Set the exposure parameters according to your printer's profile. Check Phrozen's recommended settings for Aqua-Ivory 4K on your specific model.
Start the print and monitor the first layers to ensure adhesion to the build plate is correct.
Once printing is complete, carefully remove the part using nitrile gloves. Uncured resin is an irritant.
Wash the part in 99.9% isopropyl alcohol for 2–5 minutes (agitation bath or ultrasonic) to remove uncured resin.
Allow to dry completely in air or with compressed air before post-curing.
Post-cure with a UV station (405 nm) following Phrozen's recommended times to achieve the final hardness (80 Shore D) and full mechanical properties.
Caution: Uncured photopolymer resin is an irritant to skin, eyes and respiratory tract. Always work with nitrile gloves, eye protection and in a well-ventilated space. Avoid direct skin contact. In case of contact, wash thoroughly with soap and water. Do not pour uncured resin down the drain — dispose of waste as chemical waste.
Tips for use
Exposure parameter adjustment
Aqua-Ivory 4K has a precise exposure window. Overexposure will bloat fine details and can melt edges on miniatures. Always run an exposure test (for example, a test matrix with different times) before printing final pieces. If switching from a grey resin to this ivory one, bear in mind that light pigments often require slight adjustments to the normal layer exposure time.
Storage and agitation
Store the bottle in a cool, dark place away from UV light sources. If you have leftover resin in the vat after a session, filter it back into the bottle using a fine mesh strainer to remove any cured particles. Resin left in the vat exposed to the environment degrades faster, especially if indirect light reaches it. Always shake before each session.
Post-processing for painting
The neutral ivory tone is a real advantage if you plan to hand-paint the part. After post-curing, sand visible layer lines starting with 400 grit and working up to 800–1200 if you want a very smooth finish. Apply a primer coat before painting to improve acrylic adhesion. If you want to keep the original ivory colour as the final finish, a coat of matte or satin varnish protects the surface well.
Frequently asked questions
Which printers is this resin compatible with?
Aqua-Ivory 4K is compatible with any LCD/MSLA printer that uses 405 nm UV light. It is especially optimised for 4K resolution printers, where its low-viscosity formulation allows the highest level of detail to be achieved. Adjust the exposure parameters according to your equipment's manufacturer.
Can I mix this resin with other resins?
Mixing resins from different references or brands is not recommended, as the formulations have different photoinitiators and cure times. Mixing can produce unpredictable results in terms of hardness, flexibility and layer adhesion. If you want to combine properties, the safest approach is to use resins specifically designed to be mixed.
How long can I leave the resin in the vat without using it?
If the vat is covered and kept away from light, the resin can remain there for several days without issue. For longer periods (more than a week), it is preferable to filter it back into the bottle. Before any new session, shake or stir well to homogenise any sediment that may have settled at the bottom of the vat.
What is used to clean printed parts?
The most common and effective method is washing with 99.9% isopropyl alcohol for 2–5 minutes. Avoid excessive washing times, as the alcohol can embrittle the part if it has not yet been post-cured. After washing, allow to dry thoroughly before moving to the UV station.
Why is ivory colour better than grey for painting?
The neutral, warm ivory tone acts as a brighter base than grey, allowing colours painted on top to gain more saturation and vibrancy, especially light colours and flesh tones. For human figure miniatures or sculptures, Aqua-Ivory 4K is preferable to standard grey. If you are looking for the grey version for technical prototyping or neutral visualisation, you can opt for the Phrozen Aqua-Gray 4K.
How is uncured resin waste managed?
Uncured photopolymer resin is a chemical waste and must not be poured down the drain or mixed with household rubbish. Liquid resin residue can be cured by exposing it to direct sunlight until it solidifies, then disposed of as solid waste. Washing alcohol containing dissolved resin must be managed as solvent waste at a designated collection point.
Is 80 Shore D hardness sufficient for functional parts?
80 Shore D is a high surface hardness, comparable to rigid materials such as nylon or ABS. Aqua-Ivory 4K is suitable for light-load functional parts, accessories and components not subject to repeated impacts. For applications requiring greater impact resistance or flexibility, consider ABS-Like resins such as the Phrozen ABS-Like Matte Gray.
Is post-curing necessary and how long does it take?
Yes, post-curing with UV light (405 nm) is essential for the resin to reach its final hardness and mechanical properties. A part that has not been post-cured is brittle, may still be an irritant to the touch and tends to yellow sooner. Post-cure time depends on the size of the part and the power of your UV station; as a general reference, 2 to 6 minutes in a dedicated station is usually sufficient for medium-sized parts.
Video tutorial
How to do the printing test for Sonic Mighty 4K - Phrozen LCD 3D Printer
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