Compression and Transfer Molding

As an industry leading contract molding provider, Elastomer Technologies, Inc. (ETI) provides premium quality compression molding and transfer molding services. Producing parts using compression and transfer molding is very reliable and cost effective for some projects. The more parts you are able to make per cycle, the lower the cost (less time per part).

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Compression Molding Press
Compression Molding Press
Compression Molding
Compression Molding

We pride ourselves on creating beautiful and very complex parts with compression molding and transfer molding technologies. These processes are exceptionally versatile and flexible when addressing challenges with certain part shapes. They're also excellent for parts requiring special materials or difficult to manage inserts.

We also offer these technologies and benefits:

  • Special processing in a Class 100,000 clean room to minimize exposure to airborne contaminants.
  • Reliable equipment to provide measurable time savings, and to keep rising material and infrastructure costs in check.

Molding Materials

Silicone, Viton®, EPDM, Butyl, Polyisoprene, and Nitrile rubber are only a few of the nearly limitless materials that can be compounded and molded using this method of making parts. As with any process, a part design's geometry, function, material property requirements, tolerances, cost objectives and quality are all considered when choosing this process.

For help deciding which material is right for your project, fill out our Design Analysis form and one of our team members will reach out to you shortly.

Advantages of Compression Molding & Transfer Molding

Compression and transfer molding are very versatile processes that can be used to create unique shapes or parts with complex insert requirements in a wide range of material compounds including custom materials. Using these processes for dual material molding reduces assembly time, results in very attractive and useful finished assemblies, providing a seamless look while using different materials or colors for various part features. In addition, because multiple components are molded together, tooling costs are typically significantly less for co-molded assemblies.

ETI's breadth of expertise allows them to select from multiple molding methods to choose the optimal process for a given application. ETI provides IQ, OQ, PQ studies as required. Lead times average four to twenty-four weeks depending on a project complexity, tooling requirements and qualification requirements.

For more information, take a look at our Molding Specifications table below!


Compression Molding Specifications

General Capabilities
Contract Manufacturing
Large Parts
Small Parts
Molding Process
Compression Molding
Dual Material Molding - Molding with two materials or colors of materials to create a single fully integrated part.
Transfer Molding
Insert Molding
Materials (Non-Metals)
Organic / Inorganic Rubbers
Silicone, including medical compatible materials
Industry Standard Tolerance
Based upon part geometry, material selection and process
Additional Services Provided
Contract Sewing
Hand Fabrication
High Speed Die Cutting
Production Volume
50 to 1,000,000 Parts
High Volume
Low Volume
Lead Times
Vary with complexity and quantity

Additional Information

Industry Focus
Public Infrastructure
Industry Standards
ASTM - American Society for Testing and Materials
ISO 8 Class clean room
ISO 9001:2008 - International Organization for Standardization
File Formats
DXF - Drawing Interchange Format, or Drawing Exchange Format
PDF - Portable Document Format

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