• Description for 3M Tamper-Proof Sealant 1252

    Fire-retardant seal • Resists oil, gasoline, water, jet fuel and fungus • Will not corrode metal • Tack free in 20 seconds

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    Application Type Seal
    1 Part or 2 Part 1 Part
    Material Form Liquid
    Substrate Alclad , Nitrile, Aluminium, Brass, Metal
    Chemistry Nitrile
    Cure Method Air drying
    Cure Time (min) Fast
    Viscosity (cPs) 500 to 2,500
    Color White
    Chemical Resistance Fungus, Gasoline, Jet fuel, Oil
  • Technical Data

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  • Best Practices

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  • Comparable Materials

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Viscosity Test Methods
Viscosity Test Method Temperature
500 to 2,500 cPs Brookfield Viscometer: RVF #6 sp. @ 4 rpm @ 77°F 26°C 26°C
Shear Strength Test Methods
Shear Strength Type Cure Time Cure Temperature Substrate Test Method
173 psi Overlap Shear Strength 1,440 min 25°C Alclad Average of 6, 1" x 11/2" overlap – 10 mil thick bond line. Specimens were cured for 24 hours @ 77°F (25°C).
164 psi Overlap Shear Strength 1,440 min 25°C Steel Average of 6, 1" x 11/2" overlap – 10 mil thick bond line. Specimens were cured for 24 hours @ 77°F (25°C).
Dielectric Strength Test Methods
Dielectric Strength Test Method
>100 V/mil Fed. Standard #406, Method 4031.
Surface Resistivity Test Methods
Surface Resistivity Test Method
minimum 1e10 (ohms) Fed. Standard #406, Method 4041.
Volume Resistivity Test Methods
Volume Resistivity Test Method
1e10 (ohms/cm) Fed. Standard #406, Method 4041.
Shore A Hardness Test Methods
Shore A Hardness Shore Hardness Test Method Hardness Temperature
97 to 99 After 24 hours @ 77°F (25°C), 50% R.H. 25°C
% Solids Test Methods
% Solids Test Method
61 to 73 % By weight