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LOCTITE STYCAST ES 2510 – Epoxy Encapsulant – General purpose potting and encapsulating electrical devices requiring flame retardancy

  • Item Name: LOCTITE STYCAST ES 2510
  • Manufacturer: Henkel Corporation
  • Product category: Epoxy encapsulant for potting and encapsulation
  • Technologies: Epoxy technology with low viscosity, flame retardant properties, excellent dielectric performance, and RoHS compliance
  • Applications: Ideal for encapsulating and potting electrical devices that require flame retardancy and reliable dielectric properties.
  • Color: Beige liquid (Resin)
  • Cure type: Heat cure
  • Package size: Contact to Techniq VN for details
  • Shelf life: Approximately 9 months

1. Product Overview

LOCTITE STYCAST ES 2510 is a dielectric-grade epoxy encapsulant designed for general-purpose applications requiring flame retardancy. It offers:

  • Technology: Epoxy
  • Appearance: Beige liquid
  • Key Benefits:
    • General-purpose use
    • Low viscosity
    • Flame retardant (UL 94 V0 @ 3mm)
    • Excellent dielectric properties
    • RoHS compliant
  • Cure Type: Heat cure
  • Primary Use: Encapsulation and potting of electrical devices

2. Applications

  • Potting and encapsulating electrical and electronic components
  • Provides electrical insulation with excellent dielectric properties
  • Suitable for applications requiring flame retardancy

3. Typical Properties

Uncured Properties (Resin Only)

Property Value
Density @ 25°C 1.43 g/cc
Viscosity (Brookfield, Spindle 4, 10 rpm @ 25°C) 4,700 mPa·s (cP)
Shelf Life @ 25°C 274 days

Uncured Properties (Mixed with LOCTITE CAT LA 9823-76)

Property Value
Mix Ratio (by weight) 100:57
Mix Ratio (by volume) 100:87
Viscosity (Brookfield, Spindle 4, 10 rpm @ 25°C) 5,500 mPa·s (cP)
Work Life (100g @ 25°C) 2.5 hours

Curing Performance

Condition Time
Heat Cure 2 hours @ 60°C
Post Cure (for optimal performance) 16 hours @ 40°C

Cured Properties (Mixed System)

Property Value
Hardness (Shore D) 70
Coefficient of Thermal Expansion (ppm/°C) Below Tg: 64, Above Tg: 194
Glass Transition Temperature (Tg) 18°C
Operating Temperature Range -40°C to +150°C
Compressive Strength 124 N/mm² (18,000 psi)
Linear Shrinkage 0.13%

Electrical Properties

Property Value
Volume Resistivity @ 25°C 1.29 × 10¹⁸ ohm·cm
Dielectric Constant/Dissipation Factor
@ 60 Hz 3.09 / 0.06
@ 1 kHz 2.65 / 0.048
@ 1 MHz 2.39 / 0.032

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BERGQUIST microTIM mTIM 1028 is purpose built for riding cage assemblies in servers, switches, and routers, interfacing with electroless nickel plated copper or aluminum heat sinks. It ensures stable operation in high power transceiver modules while also extending applicability to liquid cooling components, heat pipes, and fin based dissipative structures.

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