• Description for 3M 776SR

    General purpose, solvent based adhesive/Coatings with good adhesion to synthetic rubber, metal, glass, and many plastics.

    *See Terms of Use Below

    Application Type Bond, Coat
    1 Part or 2 Part 1 Part
    Material Form Liquid
    Substrate Aluminum, glass, metal, many plastics, synthetic rubber, Steel
    Manufacturer 3M
    Chemistry Solvent-Based, MIBK, Methyl Ethyl Ketone (MEK)
    Cure Method Heat
    Cure Time (min) 1,440
    Viscosity (cPs) 400 to 2,000
    Color Transparent Red
    Chemical Resistance oil, gasoline, aromatic fuels, Salt, Water, Hydrocarbons, Hot Oil
    High Temperature Resistance (°C) Heat resistance
    Low Temperature Resistance (°C) -54
    Other Resistance Fuel Resistant
    Key Specifications Mil-Spec (United States Military Standard): MIL-S-4383C.
  • Technical Data

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  • Best Practices

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Tack Free Time Test Methods
Tack Free Time Tack Free Temperature Test Method
<240 min 24 to 26°C Drying, at 77 ± 2°F, and 50 ± 5% RH
Viscosity Test Methods
Viscosity Test Method
400 to 2,000 cPs Brookfield, #2 spindle at 10 RPM
Peel Strength Test Methods
Peel Strength Type Substrate Test Time Test Temperature Test Method
3 piw 180° Peel Strength Canvas/steel 1,440 min 24°C C-5H
5 piw 180° Peel Strength Canvas/steel 4,320 min 24°C C-5H
8 piw 180° Peel Strength Canvas/steel 7,200 min 24°C C-5H
10 piw 180° Peel Strength Canvas/steel 10,080 min 24°C C-5H
10 piw 180° Peel Strength Canvas/steel 20,160 min 25°C C-5H
13 piw 180° Peel Strength Canvas/steel 30,240 min 25°C C-5H
General Bond Strength Test Methods
General Bond Strength Cure Time Cure Temperature Cure Humidity Substrate Test Method
8 (piw) 4,320 min 24 to 26°C 45 to 55 % metal 72 hours dry at 77 ± 2°F 2°F and 50 ± 5% RH plus 24 hours at 120°F and immersed in Type III fuel (MIL-S-3136) for 48 hours at 77 ± 2°F.
15 (piw) 1,440 min 49°C MIL-S-7502 sealant. 72 hours dry at 77 ± 2°F 2°F and 50 ± 5% RH plus 24 hours at 120°F and immersed in Type III fuel (MIL-S-3136) for 48 hours at 77 ± 2°F.
Flash Point Test Methods
Flash Point Test Method
73.4°F closed cup
% Solids Test Methods
% Solids Test Method
19 % By Weight, Approx.
17 to 22 % By weight, The procedures and tests conducted are contained in MIL-S-4383. Unless otherwise stated, the following data were obtained on 3M EC-776SR Coating that had been dipcoated to a dry film thickness of 0.5-1.5 mils and dried 48 hours at 77 ± 2°F. and 50 ± 5% R.H.