Applications

TEROSON® EP 5055 – Structural adhesive for Panel bonding

  • Item Name: TEROSON® EP 5055
  • Manufacturer: Henkel
  • Technologies: Epoxy-based structural adhesive
  • Color: Resin – Black, Hardener – Grey-green, Mixed – Dark grey
  • Cure Type: Room temperature cure, accelerated cure possible at elevated temperature
  • Package Size: Contact to Avantek for details.
  • Shelf Life: Contact to Avantek for details.

TEROSON® EP 5055 Panel Bonder

1. Product Overview

TEROSON® EP 5055 is a two-component epoxy-based structural adhesive designed for panel bonding applications in collision repair. It provides high strength, excellent corrosion resistance, and NVH (Noise, Vibration, and Harshness) improvement. This solvent-free adhesive bonds metal panels, including steel, aluminum, and sheet molding compounds, without the need for a primer.

  • Technology: Epoxy
  • Mix Ratio (by volume): 1:1 (Resin: Hardener)
  • Viscosity: Medium
  • Appearance (Mixed): Dark grey paste
  • Cure: Room temperature or accelerated cure at 60°C (1 hour) or 100°C (30 minutes)
  • Application Temperature: 10 to 35°C (50 to 95°F)
  • Service Temperature: -40 to 80°C (-40 to 176°F) (Short-term exposure up to 120°C (248°F))
  • Compatible Materials: Bare steel, aluminum alloys, zinc-coated steel, coated body parts

2. Applications

  • Non-safety critical panel bonding in collision repair
  • Used for side panels, quarter panels, door skins, roof skins, spare wheel housing
  • Can be combined with spot welding and riveting
  • Ideal for automotive body repair shops

3. Typical Properties

Uncured Properties
Property Resin Hardener
Specific Gravity (23°C) 1.0 1.1
Viscosity (mPa·s) 115,000 75,000
Curing Performance
Property Value
Working Time (23°C) 80 minutes
Fixture Time (23°C) 7 hours (0.1 N/mm²)
Final Cure (23°C) 48 hours
Accelerated Cure (60°C) 1 hour
Accelerated Cure (80°C) 30 minutes
Cured Properties
Property Value
Elongation at Break (ISO 527) 7%
E-Modulus (ISO 527, 7 days at 23°C) 800 N/mm² (116,000 psi)
Tensile Strength at Break (ISO 527-3) 23 N/mm² (3,300 psi)
Lap Shear Strength (DIN 1465, CRS sanded 120 grit) 21 N/mm² (3,100 psi)
“T” Peel Strength (ISO 11339, CRS sanded 120 grit) >4 N/mm (32.5 lb/in)

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