Vacuum Casting – otivic.com

Vacuum Casting Service

Vacuum casting is a prototyping process that accurately reproduces prototypes using various polymers.

Accurate Reproduction

Precisely replicates prototypes with original color, texture, and details, closely matching the final product

Versatility in Materials

The process uses various polymers to create prototypes with different properties for diverse applications and tests.

What is vacuum casting?

Vacuum molding, also known as silicone molding, in this process, an original pattern is utilized to create a silicone mold under vacuum conditions. Materials such as PU, silicone, nylon, ABS, among others, are injected into the mold under vacuum to replicate the original pattern.

Advantages Of Vacuum Casting:

Fast Delivery Time

Vacuum casting delivers parts in as fast as 4 days, eliminating the need for tooling and expediting project timelines.

Cost-Effective Prototyping

With low volume production, vacuum casting offers cheaper unit prices compared to other methods, making it ideal for budget-conscious projects.

Suitability For Small Batch Customization

Each silicone mold in vacuum casting has a lifespan of 15-25 shoots, perfect for precise, small batch production tailored to specific needs.

Vacuum Casting Material

Here is a list of common materials used in vacuum casting, along with their characteristics.

ABS-Like (TC-890FR)

TC-890 FR is UL Listed with a flammability rating at 1/16 inch (1.6 mm). It’s great for hand casting or machine dispensing electronic enclosures, or any parts requiring flame retardant characteristics.

Data Sheet

PP-Like (TC-872)

TC-872 is a polyurethane casting resin that produces a tough 80 shore D material. This system can be used to hand pour electronic housing, models of all kinds, and point of purchase items.

Data Sheet

PC-Like (TC-1630)

TC-1630 is a hard, tough, and fast-setting filled polyurethane casting resin. It is heat resistant and can be used in high-temperature applications.

Data Sheet

Nylon-Like (TC-852)

TC-852 produces a high impact, rigid 78 Shore D material that is commonly used to make computer housings, artwork, and can also be used for electronic component encapsulation.

Data Sheet

Rubber-Like (TC-266)

TC-266 is a flexible polyurethane foam with properties resembling soft furniture cushions. Common applications include prototypes, medical training devices, and movie special effects props.

Data Sheet

Vaccum Casting Surface Finishing

Before creating the soft tooling, the surface finishing is applied to the master pattern using paint and manual techniques. (xxxxxxxx) also offers additional processing options, including secondary finishes and painting, to enhance the final product’s performance and aesthetics.

Painting

Gloss

Matte

Textured

Overmolding & Insert Molding With Vacuum Casting

Vacuum casting with inserts involves placing strong metal inserts into a mold, then filling it with liquid resin under vacuum to remove air bubbles. This method creates precise, durable parts with built-in features, perfect for making detailed prototypes and small batches.
Vacuum casting with overmolding involves casting one material over another to create multi-material part.