Liquid Injection Molding at Elastomer Technologies


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Liquid Injection Molding and Transfer Molding Class 100,000 Clean Room
Liquid Injection Molding and Transfer Molding Class 100,000 Clean Room
Liquid Injection Molding
Liquid Injection Molding

With our 30+ years of industry experience, Elastomer Technologies is a solutions-oriented provider of liquid injection molding services. Our large facility houses energy-efficient, 50-ton injection molding presses equipped with easy setup features and automation options for lights-out production. This gives us the versatility to efficiently manage projects that involve lots as small as 1,000 units to those with quantities of one million or more. We offer ISO CLASS 100,000 cleanroom molding for risk-sensitive products and are capable of co-molding two materials to create a fully integrated part in one single operation.

The liquid injection molding process involves pumping a metered dose of a pressurized compound into a heated mold. We use liquid silicone rubber (LSR) to mold parts that are flexible, durable, biocompatible, and maintain their physical properties in temperature extremes. Using UV-cure materials, which allow fast cure at low temperatures, we can combine silicone rubbers with temperature-sensitive plastics or electronics to create parts with stronger visual appeal and reduced assembly requirements. Our proprietary processes also allow us to use high consistency rubber (HCR) for silicone co-molding applications, and our cold deck systems feature a material delivery configuration engineered to produce parts with nearly zero waste to save on material costs.

Our intelligent and creative approach to liquid injection molding lends itself well to the production of parts that require a high degree of accuracy. Our robust capabilities allow us to produce close tolerance parts at remarkably fast cycle times. Factors such as precision built tooling and tight control over the shot size allow us to achieve outstanding accuracy and repeatability on parts with complex geometries and varying wall thicknesses. With 100% process verification and validation, we guarantee that each part conforms to quality and traceability standards.

At ETI, we are much more than just a source for liquid injection molded parts, we are your manufacturing partner. By answering a few simple questions, we can transform your idea into a working part optimized for functionality and manufacturability. Our proprietary "Project Forecaster" analysis takes all of the variables, such as function, environment, and physical requirements to deliver a smart solution that meets your cost, quality and timeline expectations. Contact us today to learn more.

Liquid Injection Molding Specifications

Mold Process Type
Liquid Injection Molding (LIM)
The process that involves an integrated system for proportioning, mixing, and dispensing two component liquid resin formulations and directly injecting the resultant mix into a mold which is clamped under pressure.
Silicone (Co-molding)
Ultra Violet Cured Silicone
Supplier provided materials
Press Sizes
50 x 50 tons
Clamping Force
50 tons
Tool Size (Between Tie Bars)
Up to 14 in
Shot Size
The maximum weight of plastic that can be displaced or injected by a single injection stroke. Generally expressed as ounces of polystyrene.
2 oz
6 oz
Shrinkage Allowance
The dimensional allowance which must be made in molds to compensate for shrinkage of the material on cooling or during the debinding operation.
Varies in parts
Number of Cavities
The number of cavities in the mold used to produce multiple products in one molding cycle.
Additional Services
Cold Deck Systems
Lead Time (Tool Makers)
4 to 6 weeks
Lead Time (Complex Tool)
10 to 20 weeks
Production Volume
1000 parts min
No maximum
Industry Standards
ASTM - American Society for Testing and Materials
ISO 9001:2008 - International Organization for Standardization
ISO Class 100,000 Cleanrooms
Lights Out Manufacturing
File Formats
IGES - Initial Graphics Exchange Specification, ANSI file format.
STEP - Standard for the Exchange of Product Model Data

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