High Wax Castable 3D Resin for Silver & Copper Jewelry Casting
High Wax Resin 300H is a high-wax photopolymer castable resin specifically engineered for copper and silver jewelry investment casting on LCD and DLP MSLA 3D printers. Featuring a low 0.6% dimensional shrinkage, 300H guarantees clean, ash-free burnout while precisely maintaining micro-scale filigree, text engravings, and thin wall features down to 0.3mm. Its low-temperature fluid formulation prevents cold-storage solidification, providing casting workshops with a reliable, cost-effective material solution that directly reduces bench hand-finishing labor.
Engineered for Industrial Repeatability
Overcoming the limitations of traditional resin 3D printing with precision optical hardware and robust closed-loop motion systems.
High-Wax Clean Burnout · Zero Ash & Reduced Post-Cast Finishing
Optimized for LCD/DLP 3D printers and non-ferrous jewelry alloys (silver, gold, copper), this high-wax resin delivers complete, ash-free investment casting burnout. By eliminating common casting flaws like surface pitting, porosity, and restricted metal flow, it dramatically increases your casting success rate while slashing post-cast metal grinding and polishing hours for a smooth, flawless metallic finish.
0.3mm Micro-Feature Precision · Low-Damage Easy-Break Supports
Push the boundaries of intricate CAD design with wall thickness tolerances down to 0.3mm and XY/Z clearances of 0.25mm. Perfect for lightweight hollow jewelry and fine filigree, this resin features micro-support tips just 0.3mm in diameter. It prevents thin-wall collapse during printing while leaving virtually no surface scarring, dramatically cutting bench finishing labor and enabling lighter, highly detailed creations.
≤0.6% Low Shrinkage · Flawless CAD-to-Metal Micro-Pave Precision
Designed for precise volumetric retention from CAD file to cast metal, this resin limits linear shrinkage to ≤0.6% (tested via capillary method) with a post-cure hardness of 52D. It preserves sharp geometric edges, delicate relief details, and micro-pave stone settings without post-curing warping. Enjoy perfect stone fit straight out of the mold, eliminating component re-prints and tedious manual bench adjustments.
All-Season Low-Temp Stability · Instant Print-Ready Low Viscosity
Featuring a low viscosity of 360 cps (at 25°C) and advanced cold-climate fluid adaptation, this resin prevents thickening, gelation, or phase separation in unheated workshops and seasonal shipping drops. Say goodbye to pre-heating downtime, cold-induced material degradation, and print failures—enjoy effortless, year-round material readiness right out of the bottle.
Technical Performance Matrix
Verified parameters and testing protocols for jewelry casting validation.
| Content | Data value | Testing method |
|---|---|---|
| color | Green | – |
| Viscosity | 360cps(25℃) | ASTM D1084-1997 |
| Density | 1.1~1.2g/cm³ | ASM D1875-69(1980) |
| Shrinkage | ≤0.6% | Capillary method |
| Hardness | 52D | ASTM D2240 05(2010) |
Engineering Notes & Technical Interpretation
Technical insights explaining how 300H material properties preserve fine filigree detail and reduce post-cast bench labor.
How does a 0.6% linear shrinkage rate improve downstream assembly?
Excessive resin shrinkage causes distortions across thin ring shanks and misaligns stone seats. By capping dimensional shrinkage at ≤0.6%, 300H ensures that the printed pattern matches the digital CAD dimensions closely. This accuracy reduces the time bench jewelers spend re-drilling seats or hand-modifying cast parts to achieve fit.
Why is fluid stability in low temperatures critical for production?
Many resins experience phase separation or severe viscosity spikes when stored below 15°C, requiring manual agitation or warm water baths before use. 300H incorporates ambient stabilizers that maintain fluid flow in lower temperatures, ensuring consistent layer recoating on MSLA LCD printers regardless of workshop climate variations.
How do 0.3mm support tips impact labor cost?
Thicker support connections often break off into the body of the piece or leave elevated nubs. Both issues require hand filing and localized polishing on cast metal. The 0.3mm support structure breaks cleanly at the contact point, keeping the surface smooth and reducing pre-polish finishing time.
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