Figure 4 Rigid Gray is a rigid gray 3D printing resin developed for high-detail prototyping and dimensionally stable SLA resin workflows. It delivers consistent mechanical behavior, accurate feature reproduction, and predictable print outcomes, making it a practical choice for engineers validating form, fit, and function on Figure 4 production systems.
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Figure 4 Rigid Gray produces smooth, injection-molded–quality surfaces with a high-contrast gray finish that enhances feature visibility. Fine edges, fillets, and transitions remain clearly defined, which simplifies visual inspection and dimensional verification during design reviews. In addition, the uniform surface finish reduces secondary finishing steps and improves consistency across builds. As a result, engineering teams can evaluate part geometry with confidence while maintaining efficient print cycles.
This rigid gray 3D printing resin supports snap-fit features and mechanically loaded geometries with controlled stiffness and repeatable strength. For example, it features tensile strength of 66 MPa and limited elongation so that printed components maintain geometry during assembly, disassembly, and handling. Engineers commonly use this material to validate clips, housings, enclosures, and mating interfaces before committing to tooling. Since the resin prints reliably at production speeds, teams can also iterate designs quickly without introducing dimensional variability.
Figure 4 Rigid Gray maintains dimensional accuracy throughout printing, curing, and extended use. Its resistance to UV exposure and environmental aging supports long-term functional prototyping, with validated durability of up to eight years indoors and 1.5 years outdoors. In addition, low distortion during processing reduces rework and supports predictable tolerances across repeated builds. For manufacturing teams, this stability enables reliable performance evaluation and smoother transitions from prototype to end-use 3D parts.
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