Urethane casting is the short name of polyurethane casting,which is called as vacuum casting in China. The biggest application of polyurethane casting rubber service is that its manufacturing cost is lower than CNC machining method when your prototype required quantity is greater than 10 pieces but less than 100 pieces. But if your prototype required quantity is less than 5 pieces, the manufacturing cost of polyurethane casting process may be more expensive than CNC machining method’ s cost. Because in polyurethane casting process, one silicone mould can duplicate 25 pieces prototype. When small quantity, the shared silicone mould cost of each unit prototype will be high.
|urethane casting video||PP prototype in silicone mold|
Materials for polyurethane casting process is PU materials with various properties. Mixtures of all kinds of PU material can fabricate out both hard prototype whose properties are similar with ABS, PC, PA, PE, PP, POM, and soft prototype whose properties are similar with rubber, TPE, silicone, etc.
|rubber prototype with visible color||rubber prototype with invisible color|
For polyurethane casting rubber parts, hardness of rubber and exact Pantone Number need to be informed. For polyurethane casting plastic parts which is made from PU ABS,PU PC, PU PP, PU PA,PU PE, whether can they be sprayed paints on the surface or not should be informed our company. Because this requirement will greatly influence prototype manufacturing cost. Compared with other prototype manufacturers in China, the biggest advantage of polyurethane casting service provided by Leecheer company is that prototype surface can directly reach your desired surface effect without spraying paints, which make its surface effect more close to product in mass production.
|food grade silicone prototype casting||overmould prototype|
Maximum size of prototype made by polyurethane casting process is 2000x200x300mm and prototype thickness cannot greater than 3mm. Polyurethane casting has the same manufacturing effect as RIM casting. From Leecheer’ cost effective prototype manufacturing, if your required quantity is relatively little and dimension is smaller than 800x600x250mm, polyurethane casting method should be selected. Otherwise, if your required quantity is relatively large and dimension is larger than 1000x800x 300mm, RIM casting method should be selected to manufacture small-batch plastic parts.
The reasons to choose Leecheer Prototype Company
The Video of quantity evaluation given by England customers
About delivery time,our company choose FedEx intl. Priority service for all prototype to ensure that customers can receive their prototype with the quickest way.
Below time table of FedEx is the shipping time from China to different countries.
1. What type of 3D files do you accept for quoting?
We accept 3D CAD files in PRT, STEP, IGES, X_T, SLDPRT format. A 3D CAD file with STEP format is preferred, which can truly reflect the structural integrity of the 3D model and there will be no cracked surface.
2. What should be clearly expressed when processing rubber prototypes?
You should provide the exact international Pantone color number and hardness of rubber.
3. Is it available to process one prototype with two materials?
Yes, we can process it through overmould.