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    National Day Holiday Notice
    September 30,2018.

    National Day Holiday Notice

    Dear All, The National Day is coming to the corner. We will be on holiday from Oct.1st ~7th. If anything urgent, just send us email to Sales@youde-prototype.com We will check the emails from time to time. Youde Prototype 2018.09.30

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Silicone Mold Vacuum Casting

Silicone Mold Casting is good Choice for samll order production (5~500PCS)..

Silicone Mold Casting was used for production runs or duplicate prototypes and models.
YOUDE offer this services for the small quantity production (5~500), The silicone mold vacuum is very competitive for small order for 10~100sets, that will help to you save the cost and time.


Silicon Mold Vacuum Casting Process

A. Make a master mold

Before we make silicone mold , we need a prototype proceed by CNC,SLA,SLS,or sculpture as a master moldel.


B. Set parting line

Setting parting line here means taping the edge of the parting face of the part, so that silicone mold would be easy to split.


C. Build up the mold structure and pour liquid silicone
Make a box by wood board or aluminum plate according to the dimension of the pattern. Then hang the pattern which has been taped and sticked with sprue rod in the box and make it steadily, then move the box into the vacuum machine and vacuum it, this process is to suck the bubbles out of the silicone, When finishing the vacuuming, move the box into the oven and cure it under 40 centigrade degree. Normally, it only spends 7~8 hours to finish the curing, but for some pattern that in large dimension, or has very small holes or gaps, they should be cured for about 12 hours, that makes the mold solidify enough.



D. Split the mold

Take the cured mold out, and prune it, then use a knife to split the mold along with the tape connected to the part


E. Vacuum Casting

Put the mold into the oven and preheat it under 70 centigrade degree, take the mold that has been preheated out of the oven, clean it up with air gun, then spray some release agent on it if needs, assemble the mold, weight the resin, and vacuum them in the vacuum casting machine for 5 to 10 minutes, then operate the machine to let the two components of resin mix together for about 1 minutes, then cast it into the mold, you can then exhaust after the resin full of the mold cavity. The timing and rhythm of degassing has critical relation with the generation and fading of the bubbles. In the end, put the mold that has been cast into the oven to solidify the resin under 70 centigrade degree.


F. Solidify Forming

The curing time for different material is different, normally between the time is about 40~90 minutes. After cured, take the mold out, open it and get the casting part, then clean up the fragment and sprue gate.

Our Silicone Mold Vacuum Casting Capacity
Vacuum casting equipment: 3 sets
Silicone mold vacuum casting Maximum size is 1000mm×800mm×800mm
The tolerance can be controlled to 100mm/±0.20mm
Preferred model Formats: x-t, .stp, .igs, .stl, Auto CAD, Pro/E, Unigraphics
Lead time: 5~15 days, according to the actual prototyping requirement
Silicone mold life: 10 time , but 3~8 times is more better .
Thickness of duplication part :≦2.5mm .
Vacuum casting cycle time: 50min ~90 min
Materials available: ABS, PP, PC, PP, Rubber, Transparent part.

Surface Treatment

Polish, transparent surface, translucent surface, painting, rubber oil, Silk-screen printing

Case Stadies

Silicone Mold Vacuum Casting

ABOUT US


Youde Prototype limited is a professional rapid prototype and mold manufactring company,establish in 2005 and local in Shenzhen.We offer a variety of comprehensive services, including Rapid CNC machining, Silicone Mold Vacuum Casting, 3D printing, Sheet Metal fabrication, mold design and manufactring etc, kinds of metals and plastics rapid prototyping, low volume production.


YOUDE trust that our quality and our price will give you an edge over your competitors, Our team is professional in Rapid prototyping, and will help you make the best choice based on your unique project needs and timeline requirements, and will save the development cost and time, looking forward to forming successful business relationships with you in the near future.

If you are interest our services and be suited for your project,please email us:Sales@youde-prototype.com, , please send a drawing, the quotation will be submitted within 24H.Try Now !


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