Liquid silicone rubber injection molding for detailed, flexible and repeatable silicone parts and components. We support material and hardness selection, mold development, sampling, process confirmation and repeat OEM/ODM production for suitable LSR applications.
Product development and dedicated tooling around your application.
Quality control, assembly, packaging and shipment coordination.
WHEN LSR FITS
Suitable for products requiring fine details, narrow features or complex molded structures.
Suitable where flexibility, soft feel and elastic recovery are part of the product function.
Suitable for product areas requiring thinner or more controlled molded sections where the design allows.
Suitable for LSR molded around compatible inserts or rigid components where the structure is designed for it.
Suitable for selected consumer applications where soft-touch, cleanliness and material requirements are important.
Suitable for projects that require consistent molded geometry and repeat OEM/ODM production after approval.
PROJECT INPUTS
The available project information is reviewed before tooling to confirm geometry, material, molding method, interface and production feasibility.
Sketches or 2D drawings with key dimensions and sections.
CAD files for precise geometry and flow review.
An existing part used as the reference for geometry and feel.
The product the LSR component must fit or enhance.
Key measurements used to scope the molding approach.
Hardness expectation reviewed against the product function.
Material expectations reviewed for the application.
Insert material and geometry reviewed for overmolding.
Function defined per use: sealing, grip, protection or contact.
Market context reviewed for material and finish requirements.
MATERIAL & HARDNESS
Material selection depends on product function, geometry, target market, contact conditions and applicable compliance requirements.
Grade reviewed for the product function and environment.
Hardness selected and confirmed on samples.
Elastic recovery reviewed for the intended use.
Tear behavior reviewed for thin or loaded sections.
Color matched to confirmed references.
Surface feel tuned for grip, contact and appearance.
Temperature, exposure and use environment reviewed.
Reviewed for applicable products and markets.
LSR DESIGN
LSR projects should be reviewed before tooling to reduce avoidable filling, demolding, flash and fit issues.
Geometry reviewed for LSR flow and demolding.
Wall sections planned for filling and cured strength.
Parting line placement agreed before tooling.
LSR flash behavior and trimming reviewed per surface.
Air entrapment and flow paths reviewed in the mold design.
Undercuts reviewed for release or side-action needs.
Insert geometry and positioning reviewed for bonding and retention.
Tolerances agreed before mold making.
INSERT & OVERMOLDING
LSR may be molded around compatible plastic, metal or engineered inserts where the product structure requires an integrated soft-touch, sealing or protective feature.
LSR overmolded onto compatible plastic structures.
LSR molded around metal inserts and hardware.
Rigid carriers combined with flexible LSR contact areas.
Grip zones integrated into rigid structures.
Sealing features molded into the part geometry.
Protective LSR features over fragile or exposed components.
TOOLING & SAMPLING
Each step is confirmed per project. Dedicated tooling and sampling support is described on the Tooling & Sampling capability page.
The drawing, sample or requirements are reviewed for LSR suitability.
Mold structure, parting and flow are reviewed.
LSR tooling is built around the confirmed design.
First samples are molded from the new tool.
Samples are checked for dimensions and function.
Material and hardness are confirmed on samples.
Color and surface finish are confirmed on samples.
The approved sample becomes the production reference.
PRODUCTION
Production follows the approved sample and confirmed project specifications.
LSR material is prepared and colored per the confirmed specification.
Parts are injection molded per the agreed parameters.
Parts are cured to the confirmed state before handling.
Parts are removed and handled per the agreed method.
Flash is trimmed and surfaces finished per the agreed criteria.
Parts are checked against the approved sample.
Multi-part products assembled per project scope.
Parts packed per the agreed specification.
QUALITY FOCUS
Checks are aligned with the approved sample and agreed criteria — see the Quality Control capability.
Dimensions checked against the approved drawing.
Hardness matches the approved specification.
Color matches the approved reference across runs.
Surface quality consistent across batches.
Flash kept within the agreed allowance.
Parting line finished per agreed surfaces.
Fine molded details reproduced consistently.
Inserts positioned and retained as designed.
Parts assemble into the product as intended.
Repeat orders produced against the approved sample.
APPLICATION DIRECTIONS
Typical directions where LSR is applied.
Soft, flexible components for wearables and devices.
LSR parts and tools for beauty and personal-care products.
Soft-touch LSR products for consumer use.
LSR sealing and interface components.
Flexible protective LSR parts.
LSR combined with plastic or metal components.
RELATED CAPABILITIES
Related manufacturing capabilities across the ESKY workflow.
Compression and transfer molding for silicone products and components.
Silicone overmolded onto plastic structures for grip, sealing and assembly.
Silicone molded around metal inserts and hardware.
Dedicated tooling and sampling built around the confirmed design.
Product development combining silicone with plastic, metal and other components.
Checks against the approved sample across production.
FAQS
SEND YOUR RFQ
Share your drawing, CAD file, reference sample or product requirements. Tell us about the application, hardness and material expectations and estimated quantities.
PROJECT INTAKE
Share your drawing, sample or product requirements so we can review geometry, material, tooling and production.