Applications

H.B. Fuller EA6042 UV-curable adhesive and encapsulant

Technology: Polyurethane Acrylate, UV-Curable
Brand Name: H.B. Fuller EA6042
Manufacturer: H.B. Fuller
Package Size: Not specified in the provided data
Shelf Life: 12 months

1. Product Overview

H.B. Fuller EA6042 is a high-performance, UV-curable adhesive and encapsulant designed for fast curing and excellent adhesion to a wide range of substrates, including glass, plastics, and metals. This one-component polyurethane acrylate-based material provides a tack-free surface finish, high flexibility, and outstanding electrical insulation properties. It exhibits excellent precision dispensing and jetting performance, making it suitable for automated applications. Additionally, EA6042 undergoes a color change after UV curing, indicating successful polymerization.

2. Applications

EA6042 is ideal for applications requiring:

  • Encapsulation & Protection – Provides electrical insulation and mechanical reinforcement.
  • Adhesion – Bonds well to glass, plastics, and metals.
  • Precision Dispensing & Jetting – Suitable for automated and high-precision applications.
  • Fast UV Curing – Ensures rapid processing for high-throughput production environments.

3. Typical Properties

Property Value Test Method
Viscosity @ 25°C 5000 cPs
Cure Time @ 100mW/cm², 365nm 30 seconds
Shore D Hardness 62 ASTM D2240
Elongation at Break 355% ASTM D638
Tensile Strength 16 MPa ASTM D638
Lap Shear Strength (PC/PC) 16 MPa ASTM D1002 (25°C, 50% RH)
Tack-Free Time <6 seconds
Thixotropic Index 2.2
Appearance Translucent Blue (Color changes after UV cure)
Density 1.05
Curing Wavelength 365 – 405 nm
Storage Temperature 8°C to 28°C
Shelf Life 12 months
Technology / Base Polyurethane Acrylate
Compliance RoHS Compliant

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