Vacuum Casting Service

Our Vacuum Casting Service offers you a versatile manufacturing process ideal for producing parts with production-grade qualities and finishes.

Also known as polyurethane casting, Silicone molds are cast from an original master part, and then used to cast all the subsequent copies of it.
A vacuum is used during the casting process, to draw the liquid casting material into the mold cavity before curing/hardening.

Compared to Injection Molding, the silicone molds are cheaper and faster than the steel injection molds used in the manufacture of most products.

But if your lower quantity doesn’t justify the cost of injection molding, or if you can’t wait for the time it takes to make a steel mold;

Then Vacuum Casting could help you.

Compared to 3D Printing, comparable high definition resin 3D prints (SLA) generally have lower mechanical, temperature, durability and chemical tolerances.

And often cannot be used for testing.

But those exact 3D printed parts can then be used to cast copies in the variety of more capable vacuum casting materials available to meet your requirements.

Duplicating of existing parts is also a common function that Vacuum Casting is used for.

Step 2 – Creating the Mold: The master pattern is suspended in a box, and liquid silicone is poured around it. Once the silicone cures (hardens), it is cut open and the master pattern is removed, leaving a perfect “negative” cavity.

Step 4 – Curing and Demolding: The mold is placed in a heating oven to harden the resin. Once cured, the mold is pulled apart, and the finished part is removed. The mold can be reused many times before it degrades and another one is required.

Transparency: From optically clear to any translucency in between.

Color Range: Pigments can be added to the resin to match any specific Pantone colors required.

Overmolding: You can cast one material over another (a hard plastic handle with a soft rubber grip).

Insert Molding: You can place metal threads or screws inside the mold before pouring so they are permanently set into the parts.

Softness: All shore hardnesses and flexibilities can be achieved.

The polymer based urethane resins match the following materials:

• High-temperature resistance
• Fire-resistance
• Glass-filled resins