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When injection molding is too expensive for a 50-piece run, vacuum casting bridges the gap. From a 3D-printed or CNC master pattern we make silicone tools and cast polyurethane parts that mimic ABS, PC, PP, PMMA or rubber — in any color, including transparent.
Silicone molds good for 15–30 copies per tool
PU resins simulating ABS, PC, PP, PA, PMMA
Transparent and translucent tinted parts
Rubber-like Shore A 40–95 (TPU-like)
Overmolding: rigid + soft in one part
Color-matched or painted, with texture
| Material group | Common grades |
|---|---|
| Rigid | ABS-like, PC-like, PMMA-like, PP-like, PA-like |
| Flexible | Shore A 40–95 elastomer, TPU-like |
| Clear | Optical-clear and tinted translucent |
| Special | High-temp 120 °C, flame-retardant, glass-filled |
| Specification | Details |
|---|---|
| Quantity | 10–500 pcs (per project) |
| Lead time | Master 3–5 days + casting 2–3 days |
| Tolerance | ±0.1 mm / ±0.15% |
| Mold life | 15–30 shots per silicone tool |
| Max part | ~700 × 500 × 400 mm, ~2.5 kg |
| Finish | Color, paint, texture, plating-look |
Send STEP/IGES/DXF — NDA on request.
Engineers review manufacturability and price.
In-process QC with photos at key stages.
FAI report, material certs, DDP shipping.
Modern PU resins reach properties close to injection-molded ABS/PC — fine for enclosures, handles, medical device housings and marketing units, though not recommended for load-bearing continuous-duty parts.
No steel tooling: silicone molds are cast around a master pattern, so tooling cost is ~1/10 of injection molding and lead time is days instead of weeks — ideal for 10–500 pieces.
Yes — brass inserts, PCBs, magnets and metal frames can be encapsulated or overmolded in the casting process.
Usually SLA prints (smooth, accurate) or CNC-machined masters for textured or high-precision parts. You can also ship us an existing part to replicate.
Send your files today — DFM-checked quotation within 24 hours.