- Print Technology
- SLA
- Colors
- White
- Minimum Layer Thickness
- 50 micron
- Categories
- High Stiffness, Temperature Resistant, Specialty
- Applications
- Manufacturing Aids, Rapid Tooling, End-Use Parts, Rapid Prototyping
- Tensile Modulus
- 390000.0 MPa
- Flexural Strength
- 400.0 MPa
- Shore Hardness
- 70.0 D
Embrace the future of ceramic engineering with the most affordable ceramic 3D printing ecosystem in the world. Leverage the power of 3D printing to manufacture your advanced ceramic components without expensive tooling, and reduce production costs and lead times while increasing design freedom.
Alumina 4N Resin is a high-density and high-purity technical ceramic 3D printing material with exceptional performance in extreme environments: thermally resistant, hard, abrasion-resistant, mechanically strong, and chemically inert.
Alumina 4N Resin has a total shelf life of 3 months at room temperature. Refrigerating your resin (at -25 – 4 °C) can add up to 12 months of additional shelf life.
Using Alumina 4N Resin
This product requires a complex, multi-day workflow and extra equipment, including kilns, to achieve a sintered alumina part. Please read our quick start guide before proceeding.
- Print Technology
- SLA
- Colors
- White
- Minimum Layer Thickness
- 50 micron
- Categories
- High Stiffness, Temperature Resistant, Specialty
- Applications
- Manufacturing Aids, Rapid Tooling, End-Use Parts, Rapid Prototyping
- Tensile Modulus
- 390000.0 MPa
- Flexural Strength
- 400.0 MPa
- Shore Hardness
- 70.0 D
Select Printer Series and Resin Volume
Bulk Order Discount
- 15%
- 30 L
- 20%
- 60 L
- 25%
- 120 L
- 30%
- 240 L
- 35%
- 1,000 L
- 40%
- 2,000 L
- 45%
- 3,000 L
Accessories
Ceramic Wash Solution (5 L)£202.80incl. 20% VAT
Form 4 Resin Tank£118.80incl. 20% VAT
Form 4 Mixer£48incl. 20% VAT
Form 3 Resin Tank V2.1£144incl. 20% VAT
Compatibility
- Compatible Build Platform
- Form 4 Build Platform, Form 4 Flex Build Platform, Form 3 Stainless Steel Build Platform
- Compatible Tank
- Form 4 Resin Tank, Form 3 Resin Tank V2.1
- Compatible Printer
- Form 4, Form 4B, Form 3, Form 3B
Alumina 4N Resin—
from £1,294.80incl. 20% VAT
Why Choose Alumina 4N Resin?
Alumina 4N Resin is a 99.99% pure alumina technical ceramic with 98.6% relative density, and exceptional thermal, mechanical, and conductive properties — comparable to traditionally manufactured alumina (Al2O3).
Ceramic 3D Printing Made Accessible
The most affordable and easiest-to-use ceramic 3D printer in the world. Over 10x lower starting price compared to the leading alternatives.
Unprecedented Design Freedom
Fabricate ceramic components with intricate internal channels, latticed structures, and complex geometries that are impossible with traditionally manufactured alumina. Optimize parts without sacrificing quality or performance.
Shortened Turnaround Time and Reduced Costs
Ditch expensive tooling and molds for reduced production costs and a quicker end-to-end process for a faster development cycle overall.
Extreme Performance
Reliable in extreme applications with a max working temperature of 1500°C, maintaining an impressive flexural strength of over 400 MPa in addition to resisting compression and deflection with a modulus of 380 GPa.
Applications
Alumina 4N Resin is a cost and time-effective solution for fabricating high-performance parts for extreme environments. Parts printed in Alumina 4N Resin serve as good heat and electrical insulators, heavy-duty tools, as well as chemically resistant and wear-resistant components. They are used in industries such as defense, manufacturing, chemicals, and automotive.
High voltage components: enclosures, connector housings and covers, terminal blocks
Thermal protection: spark plug insulators, electrical mounting, insulating housings or tubes
Chemical resistance: manifold pipes, mixing blades and pipes
Foundry tools for metal casting: cores, crucibles, gating, sprues, mixing tools, thermocouple sheaths, metal filters
Material Properties*
Material Properties
| Parameter | Alumina 4N Resin |
|---|---|
|
Flexural Strength |
400 MPa |
|
Purity [%] |
99.99% |
|
Relative Density |
98.60% |
|
CTE (Coefficient of Thermal Expansion) |
5 ppm/K |
|
Maximum Working Temperature |
1500 °C |
See How Formlabs Customers Use Alumina 4N Resin
See all
Mechanical Performance of Alumina 4N Resin at Extreme Temperatures
Scaling High-Performance Ceramics Manufacturing at Sinto Advanced Ceramics
Mechanical Performance of Alumina 4N Resin at Extreme Temperatures
Ceramic 3D Printing Made Accessible: Introducing Alumina 4N Resin for Technical Ceramic Parts
Post-Processing
Introduction to Ceramic Alumina 4N Resins
Ceramic Alumina 4N Quick Start Guide
Recommended Tools and Supplies for Ceramic Alumina 4N Resin
Printing and Firing Ceramic Alumina 4N Resin
Designing Parts for Ceramic Alumina 4N Resin
Troubleshooting Issues With Parts Printed in Ceramic Alumina 4N Resin
Additional Steps Required for Alumina 4N Resin
Users should refer to the Introduction to Ceramic Alumina 4N Resin guide for additional information.
FAQ
Alumina 4N Resin is a 99.99% pure technical ceramic 3D printing material with 98.6% relative density. It delivers exceptional thermal, mechanical, and chemical performance comparable to traditionally manufactured alumina, while enabling complex geometries such as internal channels and latticed structures that are impossible to achieve with conventional ceramic manufacturing methods.
Sintered parts achieve a flexural strength of 400 MPa, a tensile modulus of 390,000 MPa, and a coefficient of thermal expansion of 5 ppm/K. The maximum working temperature is 1500 °C. You can download the full Alumina 4N Resin Technical Data Sheet for complete specifications.
The material is well suited for defense, manufacturing, chemicals, and automotive applications. Typical parts include high-voltage enclosures and connector housings, spark plug insulators, insulating tubes, manifold pipes, mixing blades, and foundry tools such as crucibles, thermocouple sheaths, and metal filters.
Alumina 4N Resin requires a complex, multi-day workflow. After SLA printing on a compatible printer, parts must be washed in Ceramic Wash Solution, fully dried, and then fired in a kiln through multi-day burnout and sintering cycles. UV post-curing is not required. Formlabs provides detailed guidance in the Alumina 4N Resin Quick Start Guide.
No. Parts must be washed using the dedicated Ceramic Wash Solution. Contact with isopropyl alcohol or water can cause parts to crack. A 5 L bottle of Ceramic Wash Solution is available as an accessory directly from Formlabs.
Yes. Ceramic parts shrink during sintering, so CAD models must be scaled to compensate for the dimensional changes that occur during the burnout and sintering process. Formlabs provides design guidelines covering this in the Designing Parts for Ceramic Alumina 4N Resin guide.
Beyond the printer itself, you will need a dedicated wash setup with Ceramic Wash Solution and a kiln capable of reaching the temperatures required for burnout and sintering. Refer to the Recommended Tools and Supplies for Ceramic Alumina 4N Resin guide for a complete list.
Alumina 4N Resin has a total shelf life of 3 months when stored at room temperature. Refrigerating the resin at -25 to 4 °C can extend shelf life by up to an additional 12 months.
Pricing varies based on volume, and Formlabs offers tiered bulk order discounts starting at quantities of 30 L. For large-volume orders or custom requirements, contact the Formlabs sales team directly. Please read the Alumina 4N Resin Quick Start Guide to understand the full workflow before purchasing.