Urethane Casting Service
We offer cost-effective urethane products and parts prototyping and low-volume manufacturing services.
Urethane Casting Service
Urethane casting is a process where urethane resins are poured into the silicone rubber molds to produce the plastic parts in low-volume productions. LEADRP provides urethane casting service to improve the speed and ability to cope with your prototyping and low-volume production applications.
Urethane Casting Technical Specifications
|Standard Lead Time||Up to 10 copies within 14 days|
|Standard Tolerance||±0.3% (with a lower limit on ± 0.3 mm on dimensions smaller than 100 mm)|
|Minimum Wall Thickness||To ensure that the mold is filled properly, a wall thickness of at least 0.75 mm is necessary. For best results, we recommend a wall thickness of at least 1.5 mm|
|Maximum Part Dimensions||The size of the mold is limited by the dimensions of the vacuum chamber (1900 x 900 x 750 mm) and by the volume of the product (maximum volume: 10 liters)|
|Typical Quantities||Up to 25 copies per mold (depending on the mold’s complexity and the casting materials)|
|Surface Structure||High-quality surface finish comparable to injection molding|
What is Urethane Casting and How Does it Work
Urethane Casting is a process of making plastic parts. Urethane casting is similar to injection molding, master patterns can be produced by CNC machining or 3D printing. The material used in the process is thermoplastic polyurethane. It is a material that has properties similar to rubber, flexible and feels like silicone.
The urethane is typically poured into a silicone(RTV silicone) or epoxy mold, where it cures (hardens). Then create polyurethane casting under vacuum, so urethane casting is also known as vacuum casting. The result is that the urethane casting part has the same shape as the original master model. Once the silicone mold is ready, polyurethane resin can be cast into it to get your desired parts.
Urethane casting makes it possible to cast high quality parts from more affordable silicone tooling. Urethane casting is an excellent choice for creating low-volume production runs from 50 to 10,000+ pieces.
Advantages of Urethane Casting Parts
Urethane Casting Materials
Polypropylene (PP) like (80D)
Polycarbonate (PC) like (75D)
Acrylonitrile Butadiene Styrene (ABS) like (83D)
Thermoplastic Polyolefins (TPO or TPE-O) like
Talc-Filled Polypropylene like
Glass-Filled Nylon like
Thermoplastic Polyurethane (TPU) like
Fire-Retardant (FR) PU like (78D, 80D, 85D)
High Impact (85D, 88D, 80D – 90D)
Polyamide (PA) like (80D)
Acrylonitrile Butadiene Styrene (ABS) + High Density Polyethylene (HDPE) like (70D)
Elastomer like (60A, 65A, 70A, 90A, 95A)
Polyurethane (PUR or PU) like (25A, 30A 40A, 50A, 60A, 70A, 80A, 84D, 85A, 90A)
Surface Finish Options for Urethane Casting Parts
Surface finish is applied to parts after they have been machined to create a unique surface layer to meet the hardness, chemical resistance, and appearance requirements of the products. It depends on material properties and the application of the part. LEADRP offers the following finishing options for injection molded parts services:
Full Gloss is an Grade-A finish made by polishing, and it creates glossy surfaces on injection molded parts.
SPI Standard: A1, A2, A3
Urethane Casting Samples
Alternaltives for Urethane Casting
LEADRP applies a variety of vacuum casting techniques and equipment to improve the speed and ability to cope with your prototyping and mass production applications. For product and parts with tight tolerance requirements, CNC machining or injection molding will be a better choice.
At LEADRP, we use a variety of rapid prototyping techniques to produce engineering parts, prototypes, and complete working products. Since starting our business in 2006, we have put a lot of effort into our facilities and people to offer more competitive services than many other companies in rapid prototyping and manufacturing.
How We Works
LEADRP is a leading provider of rapid prototyping service and low-volume manufacturing service for mission-critical applications in the Aerospace, Automotive, Medical & Life Science, Oil & Gas, Food and Beverage industries, Semiconductor and more.