Mouldable Wax Resin Cartridge Formlabs Form 4 1L

Achieve flawless castings with unrivalled detail using the Formlabs Castable Wax Resin Cartridge for Form 4, 1L. This material, with a 20% wax fill, is engineered for reliable lost-wax casting, delivering zero ash content and a clean burnout every time. It excels at capturing the most intricate features and produces an exceptionally smooth surface finish, making it the go-to choice for ultra-fine jewellery and high-precision patterns for dental casting and pressing of prostheses.

The professional choice for casting patterns

For delicate and intricate jewellery

Castable Wax Resin offers the high strength and rigidity needed to print the most delicate and complex jewellery designs. Its excellent green strength ensures that ultra-fine structures, such as wire filigree and micro-pavé settings, retain their perfect form from printing through to casting. For heavier jewellery pieces, we recommend using Castable Wax 40 Resin.

For high-precision dental prostheses

This resin is the reference material for dental laboratories and technicians who demand precision. It produces highly accurate and dimensionally stable patterns for the casting or pressing of copings, substructures, full-contour crowns, and removable partial denture (RPD) frameworks, integrating seamlessly into your digital dentistry workflow.

Workflow guide for dental casting and pressing

Follow this validated workflow to produce high-quality cast or pressed dental restorations using 3D-printed patterns.

Step 1: Scanning and design

Begin by capturing the patient's anatomy with an intraoral or desktop scanner. Using your preferred dental CAD software (e.g. 3Shape, exocad), design the restoration. Ensure a minimum thickness of 0.4–0.5 mm for copings and 1.0–1.2 mm for RPD connectors. Export the final design as an STL or OBJ file.

Step 2: Printing

Import the file into PreForm software. Select "Castable Wax" as the material and a layer height of 50 microns. Orient parts with critical surfaces angled away from the build platform to minimise support marks. Once configured, shake the resin cartridge and send the job to the printer. Use a dedicated resin tank for castable resins to avoid contamination.

Step 3: Washing and post-curing

Wash the printed pattern in isopropyl alcohol (IPA, ≥99%) for 10 minutes using a Form Wash. Allow the part to air-dry completely for at least 30 minutes. Once dry, cure the part in a Form Cure at 60 °C for 30 minutes. Post-curing is essential to achieve the strength required for handling and to ensure a clean burnout.

Step 4: Spruing, investing, and burnout

After removing the supports, attach sprues to the pattern as you would with a traditional wax pattern. Use a high-quality, fine-grain phosphate investment material. Follow a slow-ramp burnout schedule to ensure the resin burns out cleanly without damaging the investment:

• Ramp 1: From room temperature, heat at 3 °C/minute to 288 °C. Hold for 180 minutes.
• Ramp 2: Heat at 3 °C/minute to 593 °C. Hold for 180 minutes.
• Ramp 3: Heat at 4 °C/minute to the final casting temperature (e.g. 871 °C). Hold for 60 minutes before casting.

Step 5: Casting or pressing

Once the burnout cycle is complete, the investment mould is ready. Proceed with your standard casting or pressing procedures using your chosen alloy or ceramic material. After casting or pressing, allow the mould to cool, then divest and finish the restoration using your usual techniques.

System compatibility

• Printer compatibility: Form 4, Form 4B, Form 4L, Form 4BL, Form 3, Form 3L, Form 3B, Form 3BL, Form 2
• Compatible resin tanks: Form 2 Resin Tank (PDMS), Form 2 LT Tank, Form 3 Resin Tank V2.1, Form 3L Resin Tank V3, Form 4 Resin Tank, Form 4L Resin Tank
• Compatible build platforms: Form 4 Build Platform, Form 4 Flexible Build Platform, Form 3 Build Platform, Form 3 Build Platform 2, Form 3 Stainless Steel Build Platform, Form 3L Build Platform, Form 3L Build Platform 2L, Form 4L Build Platform, Form 4L Flexible Build Platform

Your official Formlabs partner

As an official Formlabs representative, EXPERT3D guarantees the best price, official warranty, and professional support service. Our experts, with experience dating back to 2012, are here to advise you and help you make the right decision. Trust us for qualified support before, during, and after your purchase to ensure you achieve the best possible results with your 3D printing projects.