Injection-Mold Quality Parts, Without the Steel Tool.
Get 10–50 production-quality parts in 7–10 days using silicone tooling and urethane resins. Perfect for design validation, marketing samples, and bridge-to-production when your steel tool isn't ready.
- ▸Production-grade surface finish — paint, texture, and silk screen ready
- ▸Materials that mimic ABS, PC, PMMA, rubber, clear, and high-temp plastics
- ▸Overmolding and insert molding supported (metal inserts, TPU over rigid)
- ▸Parts up to 2 m — we have two Fupu V2500 vacuum casting machines
Real parts, real machines.
Selected work from our Dongguan floor across recent customer projects.
Materials we machine
All common engineering plastics and metals, including automotive high-strength steels and aerospace-grade aluminums.
Surface finishes available
Design guidelines
Follow these rules for optimal cost and lead time. Our engineers flag any DFM issues during quote review.
1° draft per side minimum on vertical walls. Silicone tools are more forgiving than steel, but 2° is safer for deep features.
Uniform 1.5–3 mm ideal. Variations cause sink marks and warp. Avoid walls thinner than 0.75 mm — they'll flex or tear during demolding.
Texture is transferred from the master. Provide a masterwith the target surface, or let us apply VDI / Mold-Tech texture after CNC.
Pigments mixed into resin, no painting needed for solid colors. Provide a Pantone number or color chip. Color matching available for ±1 Delta-E.
Metal inserts (brass, stainless) placed before casting and locked in. For overmolding, supply the rigid substrate (injection molded or CNC) and we cast the soft part around it.
Vacuum cast parts typically hold ±0.15 mm or ±0.3% (whichever is greater). Don't specify tighter without discussion — we may recommend CNC for critical features.
The internal checklist our engineers run on every drawing before quoting — walls, radii, threads, tolerances, GD&T, finish, files.
From drawing to part
- 01CNC or SLA master pattern (typically aluminum or high-res SLA resin)
- 02Silicone mold poured around master, cured, and cut in half
- 03Resin mixed, degassed under vacuum, and poured into silicone tool
- 04Part cured in oven (30–60 min depending on resin)
- 05Part demolded, trimmed, finished, and inspected
Industries served
Frequently asked questions
Q01How is vacuum casting different from injection molding?+
Q02Can vacuum cast parts actually replace injection molded parts for small runs?+
Q03Do you support clear parts?+
Q04What about overmolding — TPU over ABS for grips?+
Q05Can I get production-level textures?+
Related references for preparing your drawings
If a requirement is undecided, say so in your request. For confidential drawings, contact us about an NDA before sharing files.
Request a review of your drawing →Email: [email protected]Vacuum casting capabilities and workflow
Small-batch prototypes, flexible parts and insert work using silicone and urethane materials. Equipment includes Fupu V2500 vacuum casting machines.
Master preparation, mold preparation, degassing and curing, master removal, material mixing and casting, curing, inspection and shipment. Discuss geometry, appearance, color and assembly requirements by email.
Shipping, freight and taxes
Shipping method, freight charges, duties, taxes and customs arrangements are confirmed by email for each order, based on the delivery destination and order details.
Discuss your order: [email protected]