Applications

Araldite® AW4859 / Hardener HW4859 – Adhesive – Structural Bonding

  • Item Name: Araldite® AW4859 / Hardener HW4859
  • Manufacturer: Huntsman Advanced Materials
  • Technologies: Two-component epoxy adhesive
  • Color: Araldite® AW4859 – Black, Hardener HW4859 – Yellowish, Mixed – Black
  • Cure Type: Room temperature and elevated temperature curing
  • Package Size: Contact to Avantek for details.
  • Shelf Life: Contact to Avantek for details.

1. Product Overview

Araldite® AW 4859 / Hardener HW 4859 is a high-performance, two-component epoxy adhesive designed for bonding metals, composites (especially CFRP), thermoplastics, and ceramics. This adhesive exhibits exceptional strength, toughness, and resilience, making it ideal for applications requiring high durability and resistance to environmental factors. It offers high lap shear strength and excellent temperature resistance up to 140°C. Additionally, it contains spacers to ensure a minimum bond line thickness of 0.05 mm.

2. Applications

  • Structural bonding of metals, CFRP, thermoplastics, and ceramics.
  • Suitable for aerospace, automotive, and industrial applications requiring high durability.
  • Ideal for bonding components exposed to harsh environmental conditions.
  • Provides strong adhesion and toughness for critical load-bearing structures.

3. Typical Properties

A. Unmixed Components

Property Araldite® AW 4859 (Resin) Hardener HW 4859 Mixed System
Appearance Black paste Yellowish paste Black paste
Density (g/cm³) 1.36 1.33
Viscosity (mPa·s) Thixotropic Thixotropic Thixotropic

B. Mixed Properties and Performance

Property Value
Mixing Ratio (by weight) 100:50
Pot Life (at 23°C, 100 g) ~ 50 minutes
Lap Shear Strength (23°C) > 25 MPa
Temperature Resistance Up to 140°C
Minimum Bond Line Thickness 0.05 mm

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