Products Description
Vacuum Casting Silicone Mold process can help you make production in low volume production in quick lead time and less cost. With the PU resin with the similar mechanical properties to the read injected parts. At XC Precision, we always make custom shells and rubbers components via our vacuum casting silicone mold services. Parts can be painted and silk screen. Also with UV resistant if needed.
What is Vacuum Casting Silicone Mold
Vacuum Casting Silicone Mold is a rapid manufacturing process used to produce high-quality plastic parts in small quantities without the high cost and long lead times of traditional injection molding (also called soft tooling for urethane casting). The core process is to create master pattern, and make the silicone mold and casting under vacuum. The materials can be a wide range of resins, similar to ABS, PP, PC, PA, Rubber…Mechanical properties are close to those of real injection-molded parts. But from master pattern to finished parts, the process can be completed in 3-7 days and no expensive steel tooling is required. It is perfect for Product Development, Bridge Production or Custom Parts
------------Five key steps to understand the vacuum casting process---------------
Step 1
Making Master Pattern
Master can be made from SLA or SLS or CNC machining. Critical to considering the shrinkage to get the accurate master parts
Step 2
Making Silicone Mold
A single silicone mold can typically produce 10 to 20 products.
Step3
Preparing the materials and pouring
Choosing the correct materials and mix precisely according to the specified ratio, then pour into the vacuum machine's tank
Step4
Vacuum Casting
Critical step and Core of the vacuum casting process. During -0.1 MPa Vacuum Environment Extract the air bubbles entrapped in the raw materials during mixing.
Step5
Curing, Demolding & Finishing
Normally cured in an oven at 60–70°C for approximately 1–2 hours to accelerate the chemical reaction. Then get the parts with post-processing steps-such as deburring, sanding, painting, and silk-screen printing
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