Cast polyurethane resins span the full hardness range from soft elastomers (Shore 30A) to glass-filled rigid plastics (Shore 80D). Cast in silicone or epoxy tooling, they are the standard for 10–500-piece bridge production runs that mimic injection-molded ABS, PC, or rubber.
Property range
| Grade | Hardness | Tensile | Elongation | Use |
|---|---|---|---|---|
| Soft elastomer | Shore 30–60A | 5–8 MPa | 300–500% | Gaskets, grips |
| Medium | Shore 70–95A | 10–25 MPa | 200–400% | Bumpers, pads |
| Rigid | Shore 60–85D | 40–70 MPa | 5–15% | Housings, trim |
Typical applications
- Bridge production runs (10–500 pcs).
- Look-and-feel prototypes for IM parts.
- Custom gaskets, grips, and bumpers.
- Marketing and trade-show samples.
Related materials
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