Applications

LOCTITE® EA 3430 – Ultra-clear epoxy adhesive for bonding

  • Item Name: LOCTITE® EA 3430
  • Manufacturer: Henkel
  • Technologies: Epoxy
  • Color: Resin – Ultra clear, Hardener – Ultra clear, Mixture – Ultra clear, Transparent
  • Cure Type: Room temperature cure after mixing
  • Package Size: Contact to Avantek for details.
  • Shelf Life: Contact to Avantek for details.

1. Product Overview

Loctite® EA 3430 is a two-component, ultra-clear epoxy adhesive designed for rapid curing at room temperature. It provides high bond strength on a variety of substrates, including metal, ceramic, rigid plastics, and wood. Its gap-filling properties make it ideal for bonding rough or poorly fitting surfaces.

2. Applications

  • General-purpose bonding
  • Suitable for metals, ceramics, rigid plastics, and wood
  • Ideal for applications requiring transparency
  • Works well on rough or irregular surfaces

3. Typical Properties

Uncured Properties
Property Resin Hardener Mixture
Appearance Ultra clear Ultra clear Ultra clear, Transparent
Specific Gravity (@25°C) 1.14 – 1.2 1.14 – 1.2 1.14 – 1.2
Viscosity (@25°C, mPa·s) 18,000 – 28,000 18,000 – 28,000 18,000 – 28,000
Mix Ratio (by volume) 1:1
Mix Ratio (by weight) 100:100
Gel Time (5g @ 25°C) 5 – 10 min
Cured Properties (7 days @ 22°C)
Property Value
Tensile Strength (ISO 527-3) 36 N/mm² (5,220 psi)
Tensile Modulus (ISO 527-3) 3,210 N/mm² (465,500 psi)
Compressive Strength (ISO 604) 65 N/mm² (9,420 psi)
Elongation (ISO 527-3) 2%
Shore Hardness (ISO 868) 70D
Glass Transition Temperature (ASTM E 1640) 58°C
Electrical Properties
Property Value
Dielectric Breakdown Strength (IEC 60243-1) 25 kV/mm
Volume Resistivity (IEC 60093) 3×10¹⁵ Ω·cm
Surface Resistivity (IEC 60093) 0.2×10¹⁸ Ω
Dielectric Constant (IEC 60250, 1 kHz) 3.07
Adhesive Performance (Lap Shear Strength – ISO 4587, 7 days @ 22°C)
Substrate Strength (N/mm²) Strength (psi)
Mild Steel (grit blasted) 22 3,200
Stainless Steel 15 2,175
Aluminum (Isopropanol wiped) 7 1,010
Aluminum (abraded) 14 2,030
Zinc Dichromate 16 2,320
Polycarbonate 4 580
ABS 5 725
PVC 5 725
GRP (Polyester Resin) 3 435
Softwood (Deal) 8 1,160
Hardwood (Teak) 11 1,600

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