XPartsLab provides silicone mold vacuum casting for appearance prototypes, functional samples and low-volume plastic-like parts. It is a practical bridge before injection molding when quantity is limited or design changes remain likely.
Get an Instant Quote View Manufacturing CapabilitiesCompare master pattern production, silicone mold development and PU resin casting for appearance prototypes, functional samples and 10–200-piece pilot builds.
Create an accurate master pattern by SLA 3D printing, CNC machining or finishing, based on the required geometry, surface quality and assembly fit.
Engineers review texture, parting lines, undercuts and thin walls before silicone mold development.
Plan parting, gates, vents and insert positioning for lower-cost reproduction of 10–200 parts with consistent demolding.
Transparent, cosmetic, flexible and complex parts receive additional review for mold life, deformation, bubbles and finishing allowance.
Simulate common rigid, transparent or flexible plastics to evaluate appearance, assembly, toughness and temperature requirements before production.
Vacuum degassing, curing and finishing are controlled to improve dimensional and color consistency across the batch.
Compare rigid, transparent and flexible casting systems by appearance, toughness, temperature resistance, wear, assembly feel and finishing requirements.
We recommend a material based on part use, load, environment, quantity and the target injection-molded appearance.
High clarity and gloss for transparent windows, light covers, display models and cosmetic prototypes. Choose a PC-like system when impact resistance is more important.
View Material Guidance Use Material QuotationGet drawing analysis, manufacturability feedback, material comparison and quality review before your vacuum casting project moves forward.
Review 2D and 3D files to identify dimensions, wall thickness, undercuts, assembly surfaces and cosmetic requirements for process planning and quotation.
Review parting, demolding, gates, vents, thin walls, bubbles and shrinkage risks before the master pattern and silicone mold are approved.
Compare material, appearance grade, finishing, quantity, cost and lead time for the required transparency, toughness or flexibility.
Engineers review the master pattern, mold plan, casting parameters and finishing requirements, with checks for bubbles, flash, color, shrinkage and deformation.
Combine accurate patterns, controlled casting and finishing to produce displayable, assemblable parts for user testing, market review and pilot builds.
Move from drawing review and quotation through master pattern production, silicone mold development, casting, finishing and delivery.
Use vacuum casting for cosmetic prototypes, transparent or flexible parts, assembly checks and 10–200-piece pilot builds across product development programs.
Engineers match material, finish, inserts, color and lead time to the intended test or presentation.
View representative master patterns, silicone molds, cast materials, finished parts and low-volume applications.
Coordinate master pattern production, silicone mold development, polyurethane (PU) resin casting, finishing, assembly inspection and quality checks through one project workflow.
Align geometry, material, appearance, quantity and lead time for displayable, assemblable and testable parts.
Find answers about quantities, materials, drawings, dimensional accuracy, finishing, inserts, lead time and the differences from injection molding.
Vacuum casting is typically suitable for 10–200 parts, including appearance prototypes, functional validation parts, market-test samples, exhibition models and pilot builds before injection molding.
For only 1–5 parts, 3D printing or CNC machining may be faster. As demand grows into repeat production, evaluate injection molding to reduce unit cost and improve batch consistency.
Vacuum casting can use a variety of PU resin and elastomer systems to simulate the effects of common plastics, transparent parts, soft plastic parts and temperature-resistant sample parts:
Engineers recommend an appropriate material system based on part use, appearance, assembly load, target hardness, temperature resistance and quantity.
The dimensional accuracy of vacuum-cast parts depends on the master pattern, silicone mold parting, material shrinkage, part size and geometry. The process can support appearance samples, assembly verification and low-volume pilot production.
If the part has tight tolerances, transparent appearance, or functional testing requirements, it is recommended to upload a 2D drawing and mark the critical dimensions.
Yes. The process starts with a master pattern, which is used to make a silicone mold. Parts are then reproduced through vacuum degassing and PU resin casting.
Compared with steel injection molds, silicone molds have lower upfront cost and shorter lead time, making them suitable for low-volume replication and rapid validation. Their limited mold life makes them unsuitable for sustained high-volume production.
Yes. Depending on the required appearance and application, available options can include clear or translucent effects, coloring, painting, blasting, polishing, screen printing, dyeing and partial assembly.
If the customer needs a texture close to that of injection molded parts, it is recommended to specify the target color, texture, gloss, transparency, LOGO and appearance acceptance criteria when quoting.
Yes. Threaded nuts, metal inserts and locating pins can be embedded when the geometry and casting process allow, supporting assembly strength, repeated fastening and functional validation.
Embedded inserts require early review of wall thickness, load direction, positioning and available casting space. Provide insert drawings, assembly relationships and target torque or load requirements.
Vacuum casting and injection molding are suitable for different stages:
Choose vacuum casting while the product is still changing and appearance, assembly or market response needs validation. Once the design is stable and demand increases, evaluate injection molding.
The typical end-to-end production lead time is 5–12 business days, subject to the confirmed quote. This range includes master pattern production, silicone mold development, casting, finishing and inspection.
Simple cosmetic parts, lower quantities and standard colors may be faster. Transparent parts, painting, screen printing, embedded inserts, strict cosmetic criteria or larger quantities may extend the schedule.
In order to obtain an accurate quote for vacuum casting, it is recommended to upload both the 3D model and the 2D drawings:
For transparent parts, embedded inserts, assemblies or painted finishes, also provide assembly drawings, target-sample photos, Pantone or RAL color references and surface-texture requirements.
Customer-uploaded 3D models, 2D drawings, project descriptions and appearance references are used for quotation, design for manufacturability (DFM) review and production communication. XPartsLab can sign a non-disclosure agreement (NDA) according to project requirements and limit file access during the project.
If the project involves unreleased products, medical devices, new consumer electronics products or patented structures, it is recommended to note confidentiality requirements when submitting requirements.
Upload your 3D or 2D files with material, quantity, color, finish, insert and delivery requirements for engineering review and quotation.
