Permabond ET538 1:1_Ratio Hot Strength Structural White/Grey Two-Part Epoxy Adhesive



  • $ 223.19
    6 units are available

    PERMABOND ET538 is a structural, room temperature curing epoxy adhesive that has excellent adhesion to a wide variety of surfaces such as wood, metal, ceramics and many plastic and composite materials. It exhibits good resistance to petrol, oils and water and has an extended cure time making it suitable for larger applications and batch production processes. Its thixotropic "non-slump" nature makes it suitable for gap filling or vertical application.

    Features & Benefits

    • Adhesion to a wide variety of substrates 
    • Full cure at room temperature 
    • Easy to apply 
    • High shear and peel strength 
    • Good impact strength 
    • Good chemical resistance 
    • Non-drip rheology

    Physical Properties of Uncured Adhesive

    ET538A ET538B
    Chemical Composition Epoxy Resin Polyamine Hardener
    Appearance White Dark Grey
    Viscosity @ 25°C

    20rpm: 50,000- 100,000 mPa.s (cP)

    2.5rpm: 150,000- 300,000 mPa.s (cP

    20rpm: 20,000- 40,000 mPa.s (cP)

    2rpm: 30,000- 90,000 mPa.s (cP)

    Specific Gravity 1.1 1.4



    Typical Curing Properties

    Mix Ratio

    1:1 by volume

    100:130 by weight

    Maximum gap fill 5 mm (0.2 in)
    Usable / pot life @ 23°C 120-150 mins
    Handling time @ 23°C 3-5 hours
    Working strength @ 23°C 24 hours
    Full cure @ 23°C 72 hours



    Typical Performance of Cured Adhesive

    Shear strength*


    Steel: 18-20 N/mm² (2600 - 2900 psi)

    Zinc: 17-20 N/mm² (2500 - 2900 psi)

    Peel strength (aluminium)


    60-80 N/25mm (13-18 PIW)



    70-80 Shore D

    Elongation at break


    Glass transition temperature Tg 45-55°C (113-131°F)
    Dielectric strength 15-25 kV/ mm
    Thermal conductivity 0.55 W/(m.K)
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