Process Presentation

An LSR overmolded control knob must transfer operating torque through its silicone grip and rigid plastic core without unwanted relative movement. This guide explains how to review the load path, interface geometry, mechanical retention, material compatibility, mold design and validation requirements before tooling.

Metal injection molded (MIM) inserts can change dimension during debinding and sintering, so LSR overmolding tooling must be based on the finished insert—not only its nominal CAD model. This guide explains how to identify critical datums, separate as-sintered and post-machined dimensions, build an overmolding tolerance stack, and define inspection inputs before tooling.

A practical guide to LSR overmolded seals on metal fuel cell bipolar plates. Learn how to coordinate perimeter and manifold sealing paths with stack compression, plate flatness, exposed flow fields, material validation and sample inspection.

An LSR-overmolded VR eye mask combines a rigid plastic insert with a soft silicone face-contact layer. This guide explains how to define the facial sealing path, preserve lens clearance, manage local compression, control the rigid-to-soft transition and validate fit in the complete headset assembly.

Smart glasses temple tips combine a rigid frame insert with a localized LSR contact layer. This guide explains how to define the ear-contact zone, preserve hinge and electronic interfaces, control overmold geometry, maintain frame fit, and validate comfort and assembly before tooling.

LSR overmolding can protect an FPC LED strip, but the silicone layer must be designed around the intended light path. This guide explains how to define the optical exit area, qualify silicone for light transmission, control layer geometry and molding defects, protect electrical interfaces, and validate optical performance in the finished assembly.

A practical guide to protecting shaft interfaces, button openings, pivot holes and assembly datums when overmolding a reusable surgical instrument handle with LSR. Covers insert location, silicone coverage boundaries, mold shut-off, material review, inspection and RFQ inputs.

An LSR silicone duckbill check valve uses flexible lips and a finished outlet slit to regulate forward flow and resist reverse flow. This guide explains how to define lip geometry, slit length and finishing, material requirements, mold controls and functional validation before tooling.

An LSR-overmolded silicone tubing Y-connector must create a secure external junction without allowing silicone or flash to enter the fluid lumen. This guide explains how to define tube ID and OD, branch geometry, insertion depth, overmolding coverage, mold shut-off, inspection and application-specific validation before tooling.

An LSR-overmolded fuel cell bipolar plate seal must follow defined perimeter and manifold sealing paths while keeping flow channels, port openings and specified electrical contact areas clear. This guide explains the drawing, metal substrate, seal geometry, insert positioning, mold design and validation details to review before tooling.

An LSR-overmolded industrial control knob combines a rigid plastic core with a custom silicone grip surface. This guide explains how to define grip texture, silicone coverage, shaft-interface clearance, mold parting lines and inspection criteria before tooling. Final grip, fit and durability requirements should be validated on representative parts.

LSR overmolding can protect PCB and FPC assemblies, but the board, mounted components and silicone coverage boundary must be designed as one system. This guide explains board support, component clearance, tooling considerations, process compatibility and validation requirements to review before tooling begins.

Custom rubber overmolding in China — LSR overmolding, silicone over plastic, metal and FPC. DFM support, prototype to mass production.

An LSR overmolded housing may appear to leak during a pressure-decay test even when the seal is intact. Temperature drift, fixture leakage, flexible silicone movement and unstable test volume can affect the reading. Learn how to separate test-system errors from real interface leaks, define a repeatable test method and prepare drawing-based DFM requirements before tooling.