Urethane Casting
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What is Urethane Casting?
Urethane casting is an advanced manufacturing process used to produce high-quality prototypes and low-volume production parts. The process begins with creating a master model using 3D printing or CNC machining. A silicone mold is then made from this master model. Liquid resin is poured into the mold under vacuum conditions, ensuring that the final parts are free from air bubbles and have an impeccable surface finish.
The Benefits of Urethane Casting
When the customer needs to do injection molding, however, due to the limit of low demand needed and special geometry features, urethane casting could be a good solution. Urethane castings plays an important role and can provide many advantages over injection molding. In addition to the lower tooling cost, urethane casting have an extremely fast turnaround Compared to injection molding. What’s more, there are also many kinds of materials to choose from, Ranging from rigid and impact resistant to soft and flexible materials. Colors, textures, and finishes can also be achieved by urethane casting, including high-polished, transparent, grained, Painting, etc,.On the other hand, in a lot of instances, urethane casting parts have similar strength and durability properties to injection molding parts.
Our Urethane Casting Services:
- Rapid Prototyping
- Low Volume Production Runs
- Pre-Production Runs
- Test Samples
- Concept Model
- Automotive Parts
- Aircraft Interior Components
- Medical Devices
- Consumer Products
Urethane Casting Materials
ABS - Like
ABS - Like FR VO
ABS - Like HT
Acrylic - Like
Nylon - Like
Opaque Elastomer
POM - Like
PP -Like
Waterclear Elastomer
Urethane Casting Finishing Options
Matte
Glossy
Texture
Clear/Transparent
Semi-transparent
The process of Urethans Casting
Our customers from various industry such as electronics, consumer products, agriculture, automotive, robotic, etc.
Design and Master model
Make a master model by finalized CAD file, typically using stereolithography. Process the master model by sanding, priming and painting to have a smooth surface.
Silicone Mold
Suspend the master model in a box. Pour liquid silicone rubber around it. And then put it into an oven and cure it. After that, split it, open it up, finally take the master mold out . A core and cavity mold is finished.
Polyurethane
Mix up the materials and pour it into the mold. With enough time in oven and curing, the liquid polyurethane will be casted into the designed part.
Post-treatment
Trim the flashes and smooth the surface. Besides, additional surface finishing can be added including painting, logo printing and assembly for the casting parts.
Urethane Casting Services FAQs
Vacuum casting is a manufacturing process used to produce high-quality prototypes and small production runs. It involves creating a silicone mold from a master model and casting liquid resin into the mold under vacuum to ensure detailed and bubble-free parts.
Vacuum casting is ideal for producing detailed and functional prototypes, including complex geometries, intricate designs, and parts requiring high precision. It is also used for small-batch production runs where fine detail and surface finish are critical.
Common materials used in vacuum casting include various polyurethane resins, silicone rubbers, and other casting compounds. These materials can be selected based on the desired properties such as durability, flexibility, and appearance.
Vacuum casting provides high accuracy and detailed replication of the original master model. The use of silicone molds and vacuum conditions ensures that the final cast parts are precise and free from air bubbles, closely matching the original design.
The turnaround time for vacuum casting varies depending on the complexity of the part and the number of prototypes or production parts required. Generally, it is faster than traditional tooling methods, and we provide estimated timelines based on your project’s specifics.
Why Choose GREFIT
Unmatched Expertise and Innovative Solutions
A range of two-part polyurethanes can simulate the properties of common plastics such as ABS, nylon, and polypropylene, with options to enhance characteristics using additives like glass fibers.
Typically 7-14 days
With years of industry experience, our team brings extensive knowledge and skill to every project.
Flexibility for any project size
Achieve exact specifications with consistent accuracy for every part..
We utilize the latest advancements in technology and equipment
Affordable machining services without compromising on quality
Extensive range of materials, including metals, plastics, and composites, for versatile applications.
Thorough inspections and testing to ensure parts meet high standards.
Reliable service with a history of successful projects and satisfied clients.
