Products

SYLGARD™ 182 Silicone Elastomer

  • Technology: Two-part addition-cure silicone elastomer
  • Brand Name: SYLGARD™ 182 Silicone Elastomer
  • Manufacturer: Dow
  • Package Size: Contact Avantek for details.
  • Shelf Life: 24 months

1. Product Overview

SYLGARD™ 182 is a transparent, two-part, heat-cure silicone elastomer with a 10:1 mix ratio by weight or volume. It offers long pot life, deep section curing, and good dielectric properties. The material is flexible, low-stress, repairable, and free of solvents or cure byproducts.

2. Applications

SYLGARD™ 182 is used for general potting and encapsulation in various electrical and industrial applications, including:

  • Power supplies
  • Connectors
  • Sensors
  • Industrial controls
  • Transformers
  • Amplifiers
  • High-voltage resistor packs
  • Relays
  • Solar cell encapsulation
  • Beam lead integrated circuits

3. Typical Properties

Before Mixing (Individual Components)

Property Unit Part A (Base)
Viscosity cP 5,475
Mix Ratio (Base: Curing Agent) 10:1

After Mixing

Property Unit Result
Viscosity (Mixed) cP 4,575
Pot Life (25°C) Hours 8
Cure Time at 25°C Hours 336
Heat Cure Time at 100°C Minutes 75
Heat Cure Time at 125°C Minutes 30
Heat Cure Time at 150°C Minutes 20

Cured Properties

Property Unit Result
Specific Gravity 1.03
Tensile Strength psi 1,105
Elongation % 105
Tensile Modulus psi 1,050
Tear Strength (Die B) ppi 25
Hardness (Shore A) 51
Dielectric Strength Volts/mil 475
Volume Resistivity ohm*cm 1.61E+15
Dielectric Constant (100 Hz / 100 kHz) 2.65
Dissipation Factor (100 Hz / 100 kHz) 0.0005
Refractive Index 1.41
Linear Coefficient of Thermal Expansion (CTE) ppm/°C 325
Thermal Conductivity W/m·K 0.16
UL Flammability Classification 94 V-1
Shelf Life (25°C) Months 24

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