Silicone Molding
Make 10 to 500 identical parts from a printed master without the cost of injection-mold tooling. Resin, polyurethane, or food-safe silicone outputs.
Capabilities
- Two-part RTV silicone mold creation
- Polyurethane resin casting
- Pigment matching to client spec
- Multi-part assembly molds
- Food-safe silicone for kitchen products
- Soft-touch overmolds
How we make it
- 01
Master pattern
3D-print a hero version of the part, sanded and finished until it's exactly what every cast should look like. The mold remembers everything.
- 02
Mold building
Pour two-part platinum-cure silicone around the master in a 3D-printed mold box. Cures in 4–24 hours depending on volume.
- 03
Casting
Polyurethane resin (or food-safe silicone, soft-touch elastomer, etc.) fills the mold. Pigment-matched to your spec. Each mold yields 20–50 pulls.
- 04
Demold
Lift the cast part cleanly from the silicone mold. Repeat — same part, same finish, every time.
- 05
Finish & QC
Trim flash, sand the parting line, paint or assemble per the spec. Each batch sample-checked against the master before pack.
When you need 50 identical parts, 3D printing each one is slow and inconsistent. When you need 5,000, injection molding wins. Silicone molding is the sweet spot in between — you print one perfect master, we cast everything else.
How the process works
- Master pattern — we 3D print a hero version of your part, sand it, fill it, paint it, until it’s exactly what you want every cast to look like.
- Mold building — pour two-part platinum-cure silicone around the master. Cures in 4–24 hours depending on volume.
- Casting — fill the mold with polyurethane resin (or your chosen material), demold, repeat. Each mold is good for 20–50 pulls before detail starts to soften.
- Finishing — sand, paint, assemble, package per your spec.
When silicone molding is the right call
- 10–500 units of the same part — anything less, just print it.
- You need consistent surface finish that’s hard to get from FDM/SLA.
- The geometry has fine detail that injection molding wouldn’t capture without expensive tooling.
- You want multi-material parts — a hard core with a soft-touch overmold, for example.
When it isn’t
- 1,000+ units long-term: get injection molding tooling instead. We can build the master and pass you to a tooling partner.
- Parts with sharp internal corners or zero draft: the silicone tears when demolding. We can advise on small geometry changes.
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