Unbranded wire-harness connectors and small silicone cable seals being assembled.

Product Overview

The TDS describes gradual migration of silicone fluid to the molded part surface after vulcanization, providing a lubricating effect for assembly and service.

Key Features

  • A two-component, addition-curing liquid silicone rubber for injection-molded cable seals, connector seals and grommets.

Physical Properties

PropertyReported value
Hardness47–53 Shore A
Tensile strengthAt least 8.0 MPa
Compression set (22 h, 175°C)At most 25%

Selected values from the original TDS. Refer to that document for conditions and whether values are typical or specification limits.

Typical Applications

  • Injection-molded cable seals and connector grommets for automotive wire-harness assemblies.

Technical Considerations

Meter and mix components A and B at a 1:1 mass ratio before injection molding. Typical mold temperature is 130–170°C; optimize cure for part geometry. Typical values are not specifications. Consult the SDS.

Technical Documentation

SiSiB® LR4250 original TDS first-page preview

Official Product Website

Official product information and commercial inquiries are managed by the publishing brand.

SiSiB ↗

Sources

  1. SiSiB® LR4250 — Supplied Original TDS ↗

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