99.99% Pure Technical Ceramic for Extreme Environments
Alumina 4N Resin is a ceramic-filled photopolymer that, after a two-stage firing process (debinding and sintering), transforms into a fully dense, polycrystalline ceramic part. It offers exceptional thermal, electrical, and chemical resistance. This "3D Printing for Ceramics" workflow enables engineers to iterate on complex geometries—such as internal cooling channels and intricate lattices—without the need for expensive custom tooling or long lead times.
Key Features
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Incredible Purity (>99.99%): Provides the highest level of performance for applications where trace impurities can cause failure or contamination.
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Rapid Form 4 Workflow: Optimized for the LFD engine, significantly reducing peel forces and allowing for faster print cycles of dense ceramic green parts.
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Extreme Temperature Resistance: Once sintered, parts can withstand service temperatures up to 1500 degrees Celsius.
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Electrical Insulation: High dielectric strength makes it an ideal choice for high-voltage insulators and electronic substrates in harsh environments.
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Chemical Inertness: Resistant to corrosion and abrasion, making it suitable for chemical processing and laboratory equipment.
Ideal Applications
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High-Voltage Insulators: Custom-shaped standoff insulators and spark plug components.
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Foundry Tooling: Complex cores and crucibles for investment casting.
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Chemical Processing: Abrasion-resistant nozzles, valves, and mixing elements.
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Aerospace & Defense: Heat shields and radomes requiring high thermal stability.
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Lab Equipment: Chemically inert crucibles and sample holders.
FAQ
How does this differ from the Form 3 version?
The Form 4 formulation is tuned for the LFD light engine, providing significantly faster print times and sharper feature definition while maintaining the same 99.99% purity and high-density results.
Do I need a special build platform?
Yes. To ensure proper adhesion and easy removal of the brittle "green" parts, the Stainless Steel Build Platform is required for Alumina 4N Resin on the Form 4.
Is the shrinkage predictable?
Yes. Formlabs provides a "Scale Factor" within PreForm. When you select Alumina 4N, the software automatically scales your model to compensate for the 22% shrinkage, ensuring your final part matches your CAD dimensions.
