3Dresyn LMM Perfect Cast PC2, castable solid photopolymer for printing heat meltable castings for Jewelry by Lithography-based Metal Manufacturing LMM

Product description

3Dresyn® LMM Perfect Cast PC2 is a heat soluble / meltable flowable & castable solid photopolymer developed for printing castings for jewelry by Lithography-based Metal Manufacturing (LMM).

Application framework

Designed for use in LMM systems within controlled professional environments. Suitable for the fabrication of high-detail castable patterns requiring controlled melting or thermal degradation, clean burnout and full elimination for precision investment casting workflows.

Typical applications

• Jewelry casting patterns
• Direct investment casting (DC)
• Filigree and complex geometries
• Thick and thin section castable parts
• High-resolution decorative and technical castings

Measured mechanical properties

• Shore hardness: D55–65 (ISO 868)
• Tensile and flexural strength: <4 MPa (ISO 527 / ISO 178)
• Young’s modulus: <60 MPa (ISO 527)
• Elongation: <1–2% (ISO 527)
• Heat deflection temperature (HDT): c.25–30 °C @ 0.45 MPa (ISO 75)
• Viscosity range:
  • <90,000 mPa·s at 25 °C (very high, poor flow)
  • <30,000 mPa·s at 30 °C (medium flow)
  • <10,000 mPa·s at 35 °C (good flow)
  • <7,000 mPa·s at 40 °C (very good flow)
  • <2,500 mPa·s at 45 °C (very good flow, lower stickiness)
  • <800 mPa·s at 60 °C (excellent flow)
  • <400 mPa·s at 65 °C (excellent flow, minor stickiness)
• No shrinkage during 3D printing (<1%) (internal method)

Functional performance characteristics

• Photoreactive spreadable butter-like paste with strong viscosity decrease upon heating
• Ultra high viscosity solid resin suitable for direct investment casting (DC)
• Thermoplastic behavior after printing, melting or degrading above 100–200 °C*
• Flows like molten wax upon heating for easy removal by gravity
• 100% ash-free burnout
• Nearly solid before printing, flexible thermoplastic after printing
• Excellent burn-out performance even with low-cost gypsum
• No shrinkage and no expansion during burn-out
• 100% soluble in acetone
• Bio-based from renewable resources (>75–80% bio content)
• Monomer-free formulation for safe handling
• Organo-tin free

Processing and handling performance

• Supplied in clear, cyan, magenta, yellow, black and white colors
• Printable with LMM printers
• Typical exposure times:
  • <20–25 seconds for 50 µm layers with medium power 4–8 mW/cm² printers
  • <10–15 seconds for 50 µm layers with high power >10–15 mW/cm² printers
• Prints can be cleaned in warm Cleaning Fluid UNW2 Bio
• Post-curing is not required
• Durable resin tank performance

Processing note

*Note. Depending on fine tuner type, dosage, printing and post-curing specifications (including wavelength, power and total energy), the melting temperature range may vary (>100–200 °C or higher). In some cases, parts may thermally degrade instead of melting. In all cases, defect-free castings are obtained.

Instructions for use (IFU)

• Higher temperatures reduce viscosity and stickiness but also reduce rigidity during printing
• Excessive light exposure may reduce melt flow and induce rubbery behavior upon heating

Cleaning

• Prints can be decaked by liquefying at 65 °C the uncured resin
• Rinse parts thoroughly in warm Cleaning Fluid UNW2 Bio

Post-curing

• Light post-curing is not required nor recommended
• Optional light post-curing increases melting temperature
• Excessive exposure may reduce melt flow and induce thermal degradation instead of melting

Investment casting

• Material may melt or thermally degrade during burnout
• Compatible with gypsum and phosphate investments
• Position upside down for gravity removal of molten material
• Then upright for complete ash-free elimination

Testing & processing disclaimer

Material performance depends on printer type, exposure conditions, geometry, investment material and burnout cycle. Full validation is required for each specific casting workflow.

Why choose 3Dresyn® LMM Perfect Cast PC2

• Advanced castable material for LMM direct casting workflows
• Controlled melt or thermal degradation behavior
• Excellent burnout with zero ash residue
• High resolution for fine and thick geometries
• Wide processing window via temperature-controlled viscosity
• Bio-based and monomer-free formulation
• Organo-tin free

Regulatory & legal notice

This material is supplied as a professional manufacturing material and is not marketed as a finished product. Final casting performance and process validation remain the responsibility of the user depending on printer, investment material and workflow conditions.

Document reference: TDS-LMM-PC2-EN | Version: 1.0 | Last updated: March 2026