Loctite EA 0151 Ultra Clear Epoxy Adhesive

USD 51.00

Two-part, ultra-clear thixotropic epoxy paste with 50-minute work life, 85 Shore D hardness, and 1,080 V/mil dielectric strength for bonding and potting.

SKU Loctite-EA0151-50ml Category
Top Brands > Loctite

Loctite EA 0151 Ultra Clear Epoxy Adhesive

Model Identifier EA 0151
Official Part Number 398454
GTIN Standard 079340830691

Technical Overview

Two-part, ultra-clear thixotropic epoxy paste with 50-minute work life, 85 Shore D hardness, and 1,080 V/mil dielectric strength for bonding and potting.

Key Features

  • Ultra-clear formulation provides optical clarity for transparent, aesthetic bond lines
  • Thixotropic paste consistency prevents sagging and migration on vertical surfaces
  • Extended 50-minute work life (60-minute pot life) allows ample time for precision adjustments
  • Highly versatile bonding across glass, metals, circuit boards, fiber optics, and plastics
  • Outstanding electrical insulation with a dielectric strength of 1,080 V/mil
  • Dual-cartridge package simplifies mixing preparation at a 2:1 volume ratio
  • Flexible cure options: room temperature or accelerated heat cure

Ultra-clear thixotropic formula with 50-minute work life and high dielectric strength.

Technical Specification Matrix

ParameterValue
Product FormThixotropic Paste
Color (Mixed)Clear / Transparent
Mix Ratio by Volume2:1
Mix Ratio by Weight100:33
Hardness85 Shore D
Viscosity (Part A)40,000 to 100,000 cP
Viscosity (Part B)20,000 to 100,000 cP
Shear Strength (Steel)2,675 psi
Work Life50 minutes
Pot Life (100g @ 25°C)60 minutes
Full Cure Time (Room Temp)24 hours
Full Cure Time (Heat-Assisted)2 hours @ 60 °C
Dielectric Strength1,080 V/mil
Volume Resistivity1.26 x 10^15 ohm-cm
Specific Gravity (Part A)1.13
Specific Gravity (Part B)0.98
Elongation at Break2.4%
Physical Weight (kg)0.08
Dimensions L x W x H (cm)12.07 x 4.78 x 2.87

Industrial Applications

1. Precision Fiber Optic Component Alignment and Assembly

Securing delicate glass fibers within optical connectors and transceiver housings. The ultra-clear optical properties of EA 0151 ensure transparent, non-obstructive interfaces, while its thixotropic viscosity prevents flow into optical pathways prior to cure.

Problem Solved

Eliminates signal refraction and insertion loss caused by cloudy adhesives, while preventing product damage via sag control during vertical component positioning.

optical clarityfiber optic bondingthixotropic pasteprecision alignment

2. High-Voltage PCB Potting and Component Insulation

Potting and isolating sensitive electronic components on high-density circuit boards. The epoxy's massive dielectric strength (1,080 V/mil) and volume resistivity (1.26 x 10^15 ohm-cm) provide complete electrical isolation for densely packed layouts.

Problem Solved

Prevents electrical arcing, shorting, and mechanical failures under extreme vibration, while allowing optical inspection of the underlying circuitry.

PCB pottingdielectric strengthvolume resistivityelectrical isolation

3. Multi-Substrate Optical Sensor and Camera Window Bonding

Bonds protective glass windows to anodized aluminum, stainless steel, or plastic frames on industrial camera enclosures and vision systems. The 50-minute work life gives assembly technicians the needed time to properly seat and clean optical surfaces.

Problem Solved

Solves joint failures arising from thermal cycling mismatch of glass, metals, and plastics. Yields a high-strength bond (2,675 psi shear strength) that resists environmental degradation.

multi-substrate bondingoptical window assemblyshear strengthenvironmental sealing
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