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LOCTITE STYCAST US 0152 – Urethane Potting and Encapsulating Compound – Low viscosity, reenterable encapsulation for automotive and marine electronics

  • Item Name: LOCTITE STYCAST US 0152
  • Manufacturer: Henkel Corporation
  • Product category: Urethane potting and encapsulating compound
  • Technologies: Two-component urethane system
  • Applications: Ideal for potting and encapsulating electronics in under-the-hood automotive and marine applications.
  • Color: Opaque black (cured)
  • Cure type: Room temperature cure
  • Package size: Contact to Techniq VN for details

1. Product Overview

LOCTITE STYCAST US 0152 is a two-component, unfilled, low-viscosity urethane potting and encapsulation compound. It provides excellent low-temperature properties and surface finish, making it ideal for protecting electronics in applications such as under-the-hood automotive and marine environments. Its low glass transition temperature prevents damage to sensitive components during temperature fluctuations.

2. Applications

  • Potting and encapsulating electronic components
  • Automotive and marine electronics protection
  • Applications requiring re-enterability and flexibility

3. Typical Properties

Uncured Material
Property Value
Viscosity @ 23°C 450 cps
Density @ 23°C 1.0 g/cm³
Pot Life @ 23°C (100g mass) < 60 min
Curing Performance
Cure Schedule Condition
Recommended Cure 24 hrs @ 23°C
Alternate Cure 2 – 4 hrs @ 60 – 85°C
Cured Material
Property Value
Hardness Shore A 35
Glass Transition Temperature (Tg) -38°C
Coefficient of Thermal Expansion 272 ppm/°C
Tensile Strength 100 psi
Elongation 180%
Thermal Conductivity 0.172 W/m-K
Moisture Absorption (24 hrs) 0.78%
Weight Loss after 168 hrs @ 125°C 0.14%
Linear Shrinkage <1.0%
Electrical Properties
Property Value
Dielectric Strength (20 mil thickness) 1,170 V/mil
Dielectric Constant (1 kHz) 6.52
Dielectric Constant (100 kHz) 5.31
Volume Resistivity 1.9 × 10¹¹ Ω·cm
Surface Resistivity 1.4 × 10¹³ Ω

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