True Cast Resin is a wax-filled material designed for precision casting of intricate jewelry to complex engineering components up to 5 mm thick. It delivers highly accurate parts with exceptional detail and smooth surfaces.

Engineered for reliability, quality, and versatility, True Cast Resin integrates easily into a wide range of burnout schedules. Low thermal expansion, minimal shrinkage, and 0.03% ash content ensure clean burnout and consistently excellent casting outcomes.

For fine wire filigree and lightweight jewelry, Castable Wax Resin is recommended to achieve optimal results. For large, demanding engineering parts, Clear Cast Resin is the recommended solution.

Why Choose True Cast Resin?

Castable Resin Formulated for Reliable, Precise Casting of Detailed Patterns

Designed for Consistent, High-Quality Casting

Crisp features, smooth surfaces, and superior accuracy enable highly detailed cast parts.

Reliable Printing and Forgiving Casting

Printed parts have low thermal expansion and maintain surface integrity with no wax migration or residue over time, allowing for a more forgiving casting experience.

Clean Burnout

With 0.03% ash content and low shrinkage, True Cast Resin delivers a clean burnout that integrates easily into existing investment casting workflows.

Versatile Casting Applications

Cast intricate jewelry patterns, heavy jewelry, and complex engineering components up to 5 mm thick.

Applications of True Cast Resin

True Cast Resin delivers precise, high-quality cast parts with crisp features, smooth surfaces, and clean burnout, making it ideal for a wide range of demanding casting applications.

Consider True Cast Resin for:

Medium jewelry
Medallions and figurines
Heavy jewelry
Small engineering components

Post-Processing

Form Wash (2nd Generation) Settings

Duration

5 min in IPA

Notes

Parts should be washed for 5 minutes in IPA or ethyl alcohol (concentration of 91% or higher). Immediately afterwards, dry the part thoroughly using compressed or forced air. Spray (or rinse) parts with fresh IPA or ethyl alcohol, then dry again using compressed or forced air.

Form Cure (2nd Generation) Settings

Duration

3 min

Temperature

Ambient

Notes

It is highly recommended to cure parts - this will significantly reduce any potential defects during casting. Cure for 10 minutes without heat in Form Cure or equivalent third-party curing machine. Cure for 3 minutes without heat in Form Cure (2nd Generation).

For design guidelines and best practices, read the Formlabs application guide.

See Application Guide

Material Properties

True Cast Resin

Ash Content

0.03%

Thermal Expansion

174.2 μm/m/°C

Detected Transition Metals (>10 ppm)

Al, Ca, K, Mg, Na, Pb, Si, Sn

High Concentration Transition Metals (>50 ppm)

None

Download True Cast Resin Technical Data Sheet

See resin compatibility

Formlabs Form 4 Resins

True Cast Resin (Form 4) 1 L

Color Kit (Form 4)

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