• Description for 3M 1945 B/A

    Chemically curing, corrosion resistant primer to improve adhesion of urethanes and epoxies to many metals. Increases corrosion protection. Cures at room temperature.

    *See Terms of Use Below

    Application Type Primer
    1 Part or 2 Part 2 Part
    Material Form Liquid
    Substrate Metal, Urethanes
    Manufacturer 3M
    Chemistry Amine cured epoxy in a blended ketone solvent
    Cure Method Base/Accelerator
    Cure Temperature (°C) 20 to 25, 21 to 27, 21 to 27, 21 to 27, 82, 121
    Cure Time (min) >60, 1,440, 60, 30, 5.00
    Color Green
    Density (g/cm³) 10.6 to 11.1 (weight (lbs/gal)), 6.8 to 7.2 (weight (lbs/gal))
    Can Be Used In Conjunction With These Materials Urethanes, Epoxies
  • Technical Data

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  • Best Practices

    *See Terms of Use Below

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Work / Pot Time Test Methods
Work / Pot Time Test Method Temperature
<480 min In a sealed container (Periodic agitation is necessary) 24 to 26°C
% Solids Test Methods
% Solids Test Method
61 to 65 % By weight
4.6 to 2.4 % By weight