INDUSTRY COMPONENT

Base Polymer

Base polymer for optical silicone rubber used in precision optical applications requiring transparency, flexibility, and environmental resistance.

Component Specifications

Definition
A specialized polymer formulation serving as the foundational material for optical-grade silicone rubber, engineered to provide exceptional optical clarity, thermal stability, UV resistance, and mechanical flexibility while maintaining consistent refractive properties across environmental conditions.
Working Principle
Functions as the primary polymeric matrix that determines the fundamental optical, mechanical, and chemical properties of the final silicone rubber product through cross-linking reactions, with molecular structure designed to minimize light scattering and absorption while providing dimensional stability.
Materials
Polydimethylsiloxane (PDMS) based polymers with controlled molecular weight distribution, vinyl or hydride functional groups for cross-linking, and optical-grade purity with minimal impurities (<10 ppm metallic contaminants).
Technical Parameters
ParameterTypical rangeNotes & selection driver
Viscosity500-5000 mPa·s (25°C)
Transmittance>92% (400-700 nm)
Hardness Range20-80 Shore A
Refractive Index1.403-1.410
Specific Gravity0.97-1.02
Tensile Strength4-10 MPa
Dielectric Constant2.7-3.2 (1 MHz)
Elongation At Break300-800%
Operating Temperature-60°C to 200°C

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Standards
ISO 10993, ISO 13485, ASTM D2240, DIN 53504, DIN 53505

Parent Products

This component is used in the following industrial products

Engineering Analysis

Risks & Mitigation
  • Inconsistent refractive index
  • Yellowing under UV exposure
  • Contamination during processing
  • Incomplete cross-linking
  • Bubble formation
FMEA Triads
Trigger: Impurities in raw materials
Failure: Reduced optical clarity and increased haze
Mitigation: Implement strict material qualification and filtration systems
Trigger: Incorrect catalyst ratio
Failure: Incomplete curing leading to soft spots
Mitigation: Automated dosing systems with real-time monitoring
Trigger: Moisture contamination
Failure: Bubble formation and surface defects
Mitigation: Controlled environment processing with dew point monitoring

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
Refractive index ±0.002, Transmittance >90%, Hardness ±3 Shore A
Test Method
ASTM D1003 for haze, ASTM D2240 for hardness, ISO 489 for refractive index, ISO 37 for tensile properties

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation
Request current drawings, revision history, and a signed specification sheet.
Manufacturing capability
Verify equipment lists, process limits, capacity, and representative production evidence.
Inspection readiness
Confirm test methods, calibrated equipment, sampling plans, and traceable reports.
Supplier transparency
Check the legal entity, factory address, ownership, certifications, and direct contacts.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Manufacturers of Base Polymer

Manufacturer profiles associated with Base Polymer.

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Frequently Asked Questions

What makes this base polymer suitable for optical applications?

It features controlled molecular structure to minimize light scattering, high purity to prevent haze formation, and consistent refractive index for precise optical performance.

How does temperature affect optical properties?

The polymer maintains stable refractive index (±0.001) and transparency across the operating temperature range due to its low glass transition temperature and thermal stability.

What cross-linking systems are compatible?

Compatible with platinum-catalyzed addition cure and peroxide cure systems, with formulation adjustments available for specific processing requirements.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Preliminary Technical Classification
This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

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