HDU - DUNABOARD is a high-density urethane foam substrate designed for signage, dimensional fabrication, modeling, and routed display applications where detail, stability, and easy machining are important. This material is commonly used for dimensional signs, carved panels, architectural elements, displays, and custom fabricated components.
This material features a high-density polyurethane foam construction with a grain-free, uniform cell structure, allowing it to cut, route, carve, sand, and shape cleanly without the grain movement or splitting associated with wood. HDU provides excellent workability for CNC routing and hand fabrication, making it ideal for dimensional lettering, relief carving, and detailed sign work. It also resists moisture and environmental exposure, helping maintain stability in indoor and outdoor applications when properly finished or coated. DUNABOARD / CORAFOAM-style HDU is available in multiple densities, allowing the material to be matched to the level of detail, strength, and durability required for the project.
HDU boards are commonly used for dimensional signage, routed signs, carved displays, architectural models, themed environments, and custom fabrication where lightweight handling, clean detail, and consistent machining performance are required.
Specifications
Product: HDU - DUNABOARD
Material: High-Density Urethane / Polyurethane Foam
Finish: Raw Foam Board
Density: Available in Multiple Densities
Features: Lightweight, Grain-Free, Easy to Route, Easy to Carve, Moisture Resistant, Dimensional Stability
Applications: Dimensional Signs, Routed Signs, Carved Panels, Displays, Architectural Elements, Custom Fabrication
