Small-batch product trial, prototype display and limited-edition manufacturing often face high mold cost and long cycle of injection molding. Urethane Casting (also named vacuum casting) is a low-cost rapid forming process that reproduces high-detail parts via silicone molds. Moldburger integrates 3D printing, CNC and vacuum casting equipment to provide one-stop Urethane Casting service.
Urethane Casting, also known as vacuum casting, is a rapid manufacturing technology for low-volume products. The production logic is to make silicone molds based on master models (3D printed or CNC machined), inject polyurethane resin under vacuum environment to avoid air bubbles, and obtain high-precision replicas consistent with the original design. Moldburger adopts RTV and HTV two types of silicone materials for mold making. Ordinary RTV silicone molds can produce about 50 pieces, while high-temperature vulcanized silicone molds support 300–500 pieces, suitable for different batch demands. The whole cycle from design confirmation to finished delivery only takes around 10 days, without expensive hard mold investment.
1. Produce master model via 3D printing or CNC machining
2. Wrap master model with silicone to make integrated mold
3. Split silicone mold, take out master model, add runner and vent channels
4. Pour polyurethane resin into mold under vacuum to eliminate bubbles
5. Cure and demold to get finished urethane casting parts
6. Post processing: polishing, painting, assembly
| Mold Material | Usable Output Per Mold | Applicable Batch | Service Life Feature |
| RTV Room Temperature Silicone | ~50 pcs | Small prototype, sample display | Low cost, easy mold opening |
| HTV High Temperature Silicone | 300–500 pcs | Small mass trial production | Heat resistant, long service life |
1. Low upfront cost: No high-cost steel injection mold, suitable for product verification before mass production
2. Ultra-high detail restoration: Reproduce tiny textures, patterns and complex curved surfaces without deformation
3. Short production cycle: Total lead time only about 10 days, much faster than injection molding
4. Diverse material choices: Multiple polyurethane resins with different hardness, transparency and temperature resistance
5. Flexible batch support: Meet 1–500 pcs order demands, no minimum order limit
6. Real product texture: Finished parts reach the appearance and hand feel of formal injection products for exhibition and test
Moldburger Urethane Casting serves multiple mainstream manufacturing industries:
• Medical industry: Custom prosthetics, orthotic accessories, hearing aid housings
• Automotive industry: Dashboard knobs, car emblems, lamp lenses, intake manifold prototypes
• Consumer electronics: Equipment shells, controller panels, sensor structural parts
• Robot & machinery: Small precision spare parts, functional test components
• Consumer goods: Limited sunglasses, customized phone cases, stationery crafts
• Art & exhibition: Scale models, handicraft figurines, exhibition display props
• Sports & medical equipment: Fitness accessory prototypes, scientific instrument housings
Founded in Hong Kong in 2010, Moldburger built Dongguan Chang’an factory in 2016, located in Humen mold industry base:
1. Production Equipment: 30 sets Makino/FANUC CNC, 18 spark machines, 20 wire cutters, 40 industrial 3D printers, 2 Hexagon three-coordinate testing instruments
2. Qualification System: ISO9001, TS16949 automotive quality certification
3. Technical Team: 30 professional design engineers, over 100 skilled technical operators
4. Production Capacity: Complete one-stop service of 3D printing, CNC machining and Urethane Casting
5. Global Market: Mainly export to Europe and America, cooperate with DME, HASCO and international mold brands, attend K Show, Intermold exhibitions annually
1. Free scheme evaluation according to customer 2D/3D drawings
2. Provide material selection suggestion for different usage scenarios
3. Send process quotation within 24 hours after receiving design files
1. Make master model first for customer visual confirmation before mold production
2. Real-time production photos and video update during casting
3. Support surface customization: polishing, spraying, color printing
1. Strict dimensional inspection by three-coordinate equipment before delivery
2. Safe export packaging to avoid scratch during long-distance transportation
3. Long-term technical support for batch expansion plan adjustment
Q1 How many products can one silicone mold of Urethane Casting produce?
RTV silicone mold can cast around 50 pieces; HTV high-temperature silicone supports 300–500 pieces for small batch trial.
Q2 What is the general lead time for a full set of Urethane Casting parts?
From drawing confirmation to finished delivery, the whole cycle takes approximately 10 working days.
Q3 Can Urethane Casting produce transparent or high-temperature resistant parts?
Yes, we supply multiple polyurethane resin materials including transparent, flame retardant and high-temperature resistant formulas.
Q4 Is Moldburger a real factory for Urethane Casting instead of a trading company?
Yes, we own Dongguan production base with complete CNC, 3D printing and vacuum casting workshop, full self-production capacity.
Q5 What’s the minimum order quantity for Urethane Casting?
No strict MOQ, we accept single prototype sample orders as well as hundreds of small batch orders.
Q6 What files do I need to provide for quotation?
3D STP/STL drawing files are required, we can also adjust scheme based on physical samples sent by customers.
Urethane Casting is the most cost-effective rapid forming solution for prototype verification, exhibition samples and small-batch trial production, solving the high cost and long cycle pain points of traditional hard mold manufacturing. Supported by complete vacuum casting equipment, standardized quality control and ten years of export experience, Moldburger provides reliable one-stop Urethane Casting service for global designers, brand merchants and manufacturing factories. Whether you only need a single prototype sample or hundreds of small batch finished products, we can provide accurate material plans, detailed quotations and stable delivery schedules. If you want to know more about resin material options, mold cost and delivery arrangement, please feel free to contact us. Our professional rapid prototype engineering team will tailor Urethane Casting production solutions for your project.