Huntsman Epibond 420 A/B Epoxy Adhesive Datasheet Huntsman Epibond 420 A/B Epoxy Adhesive

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  • Description for Huntsman Epibond 420 A/B Epoxy Adhesive

    Huntsman Epibond 420 A/B Epoxy Adhesive is a 2-Part 2-Part Cure Epoxy: Modified epoxy Paste used to Adhere Al, FIber-reinforced composite and Honeycomb

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    Brand Epibond
    Application Type Bond
    1 Part or 2 Part 2-Part
    Material Form Paste
    Substrate Al, FIber-reinforced composite, A wide variety of metal
    Manufacturer Huntsman
    Chemistry Epoxy: Modified epoxy
    Cure Method 2-Part Cure, Heat cure, Room-temperature curing
    Cure Temperature (°C) 25, 60, 79, 121
    Cure Time (min) 10,080, 120, 5,400, 60
    Viscosity (cPs) Semi-paste
    Color Blue-green, Blue-green
    Durability Extremely tough
    Density (g/cm³) 1.05 (g/cc)

  • Technical Data for Huntsman Epibond 420 A/B Epoxy Adhesive

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    Overview
    • Application Type
    • 1 Part or 2 Part
      • 2-Part
    • Material Form
      • Paste
    • Substrate
    • Industry
      • Other - Structural applications
    • Chemistry
    • Cure Method
      • Room Temperature / Air Dry - Room-temperature curing
      • Heat - Heat cure
      • 2-Part Cure
    • Color
      • Blue - Blue-green
      • Green - Blue-green
    • Brand
      • Epibond
    Specifications
    Cure Specs
    Cure Temperature (°C) 25, 60, 79, 121
    Cure Time (min) 10,080, 120, 5,400, 60
    Viscosity (cPs) Semi-paste Test Method
    Work / Pot Time (min) 70 Test Method
    Mix Ratio 100:40 (by weight)
    Bond Strength
    General Bond Strength (psi) High strength
    Peel Strength (piw) Good
    Shear Strength (psi) High, 3,500, 1,500, 1,400 Test Method
    Hardness
    Durability Extremely tough
    Flexibility Resilient
    Other Properties
    Density (g/cm³) 1.05 (g/cc) Test Method
    Business Information
    Shelf Life Details Epibond? 420 A/B should be stored in a dry place, in the sealed original container, at temperatures between +2°C and +40°C (+35.6°F and 104°F), and not be exposed to direct sunlight. Under these storage conditions, and when supplied under Huntsman standard certification, this product has a shelf life of 1 year from date of shipment (expiration date may differ based on customer specification).
    Shelf Life Temperature (°F) 36 to 104
    Shelf Life Type From date of shipment
    Shelf Life (mon) 12

  • Best Practices for Huntsman Epibond 420 A/B Epoxy Adhesive

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    1. Mixing

      To 100 parts by weight of Epibond? 420 A resin, add 40 parts by weight of Epibond? 420 B hardener. Mix thoroughly for 2-3 minutes to achieve a uniform color. Epibond 420 A/B is available in a 50mL twin cartridge, and for best results should be dispensed using manual or pneumatic dispensing equipment through a suitable mixing nozzle.

      For other mixing and application recommendations, please consult your local Huntsman Advanced Materials representative or one of our distributors.

  • Comparable Materials for Huntsman Epibond 420 A/B Epoxy Adhesive

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Viscosity Test Methods
Viscosity Test Method Temperature
Semi-paste ASTM D2196 25°C
Work / Pot Time Test Methods
Work / Pot Time Test Method Temperature
70 min Work life, ASTM D1338 25°C
Shear Strength Test Methods
Shear Strength Type Cure Time Cure Temperature Substrate Test Method
High Lap shear 0.00 min 25°C Al-Al ASTM D1002, Cured, After one hour at 250°F, (Not for specification purposes)
3,500 psi Lap shear 0.00 min 25°C Al-Al ASTM D1002, Cured, After one hour at 250°F, (Not for specification purposes)
1,500 psi 60 min 121°C Insert shear trength, Cured, Not for specification purposes, BMS 5-107
1,400 psi 43,200 min 60°C Insert shear strength, Cured, Not for specification purposes, After one hour at 250°F/121°C, 95% R.H., BMS 5-107
Density Test Methods
Density Test Method
1.05 (g/cc) ASTM D792