3Dresyn Perfect Cast HS1 Bio, Heat Soluble, Meltable, Flowable & Castable photopolymer bio based solid wax

Product description

3Dresyn® Perfect Cast HS1 Bio is a heat-soluble, meltable, flowable and castable bio-based solid wax photopolymer developed for direct investment casting workflows using top-down SLA and DLP printers. The material is supplied as a solid photoreactive resin that melts before printing and, once printed and post-cured, can be fully eliminated from the investment mold by gravity due to its very low melt viscosity.

The formulation is designed for controlled wax-like casting workflows requiring full mold evacuation, negligible ash content and bio-based content from renewable resources.

Application framework

Designed for use in top-down vat photopolymerization systems (SLA and DLP) with precise temperature control of the resin and printing environment. Suitable for direct investment casting workflows under controlled laboratory or production conditions.

Typical applications

• Direct investment casting (DC)
• Wax-like sacrificial casting patterns
• Relatively thick casting geometries
• Applications requiring full gravity elimination of the pattern before burnout

Material properties & performance

• Melting point as supplied before printing: 32 °C
• Melting point after printing and post-curing: 47 °C
• Very low viscosity: <100 cps at 35 °C
• Tensile and flexural strength: <2 MPa
• Young’s modulus: <800 MPa
• Elongation at break: <2%
• Residual ash content: 0%
• No shrinkage during 3D printing
• No expansion during burnout

Functional performance characteristics

• Melts and flows like molten wax after printing and post-curing
• 100% elimination by gravity from the investment mold in upside-down position
• Excellent burnout without casting imperfections, even with low-cost gypsums
• Reduced brittleness for a wax-like material
• Non-rubbery behavior upon heating compared with conventional castable photopolymers
• Ideal for relatively thick prints rather than ultra-filigree fine-detail patterns

Processing and handling performance

• Top-down SLA and DLP printing only
• Printable with temperature-controlled top-down printers at 33–34 °C
• Supplied in cyan, magenta, yellow, black and white
• Cyan, magenta, yellow and especially black provide higher resolution than white
• Prints can be cleaned in warm water at 33–34 °C to melt uncured resin from the surface
• Post-curing in air or water in a light box for 30–60 minutes is recommended to increase curing and melting point up to 47 °C
• Safe handling without toxic pictograms
• Organo-tin free formulation

Typical printing guidance

• Exposure times 20–25 seconds for 50 µm layers with low power (<1 mW/cm²) printers
• Exposure times 10–15 seconds for 50 µm layers with medium power (1–2 mW/cm²) printers
• Exposure times <10 seconds for 50 µm layers with high power (5–15 mW/cm²) printers

Chemical and sustainability characteristics

• Bio-based from renewable resources: >70% bio content
• Monomer-free as supplied
• Safe handling profile without toxic pictograms

Instructions for use (top-down printers)

• 3Dresyn® Perfect Cast HS1 Bio is solid at room temperature
• Warm the material before printing to 33.5 °C
• Warm the bottle in a water bath or oven until fully melted
• Once liquid, pour into the resin tank and keep the resin at 33.5 °C
• Allow 15–30 minutes for full temperature stabilization before printing
• Stir the material well before printing to verify complete liquefaction

Cleaning

• Rinse printed parts thoroughly under warm water at 33–34 °C
• Allow parts to dry thoroughly after cleaning

Post-curing

• Post-cure for 30–60 minutes in a light box
• Post-curing increases curing level and melting point up to 47 °C

Investment casting

• Since the material melts completely above 47 °C, any gypsum or phosphate investment can be used
• The material is fully eliminated by gravity in upside-down position

Critical process note

Warning: this material is recommended only for professional top-down printers because precise and homogeneous temperature control is crucial for successful printing. If the temperature is too high (above 35 °C), prints may melt during printing. If the temperature is too low (below 33 °C), the liquid resin may solidify around the prints. Constant temperature in both the resin tank and build platform is essential.

Alternative direct processes for wax-like castings

• Direct printing of castable sacrificial resins:
  • 3Dresyn® Perfect Cast LPP for low power multicolor LCD printers
  • 3Dresyn® Perfect Cast HPP for high power printers (monochrome LCD, DLP and laser printers)
• Direct printing of water-soluble sacrificial resins:
  • 3Dresyn® Perfect Cast WS1 for water- and steam-soluble casting workflows

Alternative indirect processes for making wax castings

• Wax injection in durable 3D printed molds (for non-intertwined mold geometries):
  • 3D resins for printing durable molds
  • 3Dresyn® IM-HF and 3Dresyn® IM-F for injection of 3Dresyns waxes or traditional waxes
• Wax injection in easy-breaking cocoon sacrificial molds (for intertwined mold geometries):
  • Cocoon sacrificial 3D resins
  • 3Dresyn® IM-SF Cocoon and 3Dresyn® IM-SF Cocoon MF Bio
• Wax injection in water-soluble sacrificial molds (for intertwined mold geometries):
  • Water soluble sacrificial 3D resins for injection of 3Dresyns waxes or traditional waxes

Testing & processing disclaimer

Material performance depends critically on precise temperature control, printer type, exposure conditions, cleaning procedure, post-curing conditions, investment material and burnout cycle. Full workflow validation is required for each specific application.

Why choose 3Dresyn® Perfect Cast HS1 Bio

• Heat-soluble and meltable wax-like castable system
• 100% gravity elimination from the mold for ash-free burnout
• Bio-based formulation with >70% renewable content
• Excellent burnout even with low-cost gypsums
• Reduced brittleness compared with conventional wax-like systems
• Safe handling without toxic pictograms
• Monomer-free as supplied
• Designed for advanced top-down casting workflows

Regulatory & legal notice

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

Document reference: TDS-PERFECT-CAST-HS1-BIO-EN | Version: 1.0 | Last updated: March 2026