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LOCTITE STYCAST 2850FT CAT 27-1

  • Item Name: LOCTITE STYCAST 2850FT CAT 27-1
  • Manufacturer: Henkel Corporation
  • Product category: Thermally conductive epoxy encapsulant
  • Technologies: Epoxy formulation engineered for high thermal conductivity, electrical insulation, thermal shock resistance, and low coefficient of thermal expansion; compatible with a variety of catalysts
  • Applications: Ideal for encapsulating components that require efficient heat dissipation and thermal shock protection
  • Color: Black (Resin)
  • Cure type: Heat cure
  • Package size: Contact to Avantek for details
  • Shelf life: 365 days (when stored at 18–25°C)

1. Product Overview

LOCTITE STYCAST 2850FT CAT 27-1 is a thermally conductive, electrically insulative epoxy encapsulant designed for applications requiring heat dissipation and thermal shock resistance. It has a low coefficient of thermal expansion (CTE) and is compatible with various catalysts.

  • Technology: Epoxy
  • Appearance: Black
  • Key Benefits:
    • Thermally conductive
    • Electrically insulative
    • High thermal shock resistance
    • Low CTE
    • Compatible with multiple catalysts

2. Applications

  • Encapsulation of components requiring heat dissipation and thermal shock resistance
  • Can be used in applications involving high-temperature exposure
  • Available in pigmented (black) and unpigmented versions

3. Typical Properties

Uncured Properties

Property LOCTITE STYCAST 2850FT LOCTITE CAT 27-1
Viscosity (mPa·s) 250,000 300
Density (g/cm³) 2.4 1.05
Shelf Life (days) 365 @ 18-25°C

Mixed Properties

Property Value
Mix Ratio (By weight) 100:7.0
Mix Ratio (By volume) 100:16.5
Work Life (100g @ 25°C) 2 hours

Curing Performance

Cure Schedule Conditions
Initial Cure 4 hours @ 120°C
Post Cure 2-4 hours at max operating temp

Cured Properties

Property Value
Hardness (Shore D) 94
Linear Shrinkage (%) 0.23
Water Absorption (%) 0.06 (1 day @ 25°C)
Thermal Conductivity (W/m-K) 1.066
Glass Transition Temp (°C) 132 (Tan δ) / 114 (Onset)
Young’s Modulus (N/mm²) 6,413 (35°C) → 85 (150°C)

Electrical Properties

Property Value
Surface Resistivity (Ω) 7.4 × 10¹⁶
Volume Resistivity (Ω·cm) 2.5 × 10¹⁵
Dielectric Constant (1 kHz) 5.6
Dissipation Factor (1 kHz) 0.016

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