Dow Q3-7074 Adhesive /Sealant Datasheet Dow Q3-7074 Adhesive /Sealant

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  • Description for Dow Q3-7074 Adhesive /Sealant

    Noncorrosive; oxime-cure; excellent unprimed adhesion; good weatherability; cures to a tough rubbery solid.

    *See Terms of Use Below

    Application Type Bond, Seal
    1 Part or 2 Part 1 Part
    Material Form Paste
    Substrate Aluminum
    Manufacturer Dow
    Chemistry Silicone
    Cure Method Moisture
    Cure Time (min) 1,440
    Color Black, Grey, Clear
  • Technical Data for Dow Q3-7074 Adhesive /Sealant

    • Application Type
    • 1 Part or 2 Part
      • 1 Part or 2 Part - 1 Part
    • Material Form
      • Paste
    • Substrate
    • Chemistry
    • Cure Method
      • Moisture / Condensation Cure - Moisture
    • Color
      • Black
      • Clear / Transparent - Clear
      • Gray - Grey
    Cure Specs
    Cure Time (min) 1,440 Test Method
    Tack Free Time (min) 15 Test Method
    Work / Pot Time (min) 8 Test Method
    Bond Strength
    Shear Strength (psi) 180 Test Method
    Tensile Strength (psi) 260 Test Method
    Shore A Hardness 33 Test Method
    Elongation (%) 5 Test Method
    Other Properties
    Specific Gravity 1.040 Test Method
    Business Information
    Shelf Life Details When stored at or below 32° C (90° F), Dow Corning Q3-7074 RTV Adhesive/Sealant has a shelf life of 30 months from date of manufacture. Since this material cures by reaction with moisture in the air, keep the container tightly sealed when not in use.
    Shelf Life Temperature (°F) <90
    Shelf Life Type From date of manufacture
    Shelf Life (mon) 30
  • Best Practices for Dow Q3-7074 Adhesive /Sealant

    *See Terms of Use Below

    1. Surface Preparation

      Surfaces to be adhered or sealed should be free of dirt, oil, and other contaminants. A surface primer can be recommended for hard-to-bond surfaces, such as some plastics.

    2. Curing

      Curing continues inward from the surface. In 24 hours at room temperature and 50 percent relative humidity, a fully exposed section of Dow Corning Q3-7074 RTV Adhesive/Sealant will cure to a depth of 3.2 mm. Lower relative humidities will extend this cure time. If both bonded members are impermeable to moisture, as in the case of two metal plates, cure time will depend on the thickness of Dow Corning Q3-7074 RTV Adhesive/ Sealant and the area under the joint. The larger the unexposed area, the longer the cure time. For shorter cure time and maximum bond strength, keep the area enclosed by the joint to a minimum. For best results, a metalto-metal bond should not overlap more than one inch.

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Cure Time Test Methods
Cure Time Test Method
1,440 min 3.2 mm (1/8 inch), CTM 0084
Tack Free Time Test Methods
Tack Free Time Test Method
15 min CTM 0095
Work / Pot Time Test Methods
Work / Pot Time Test Method
8 min CTM 0098
Tensile Strength Test Methods
Tensile Strength Test Method
260 psi ASTM D 412
Shear Strength Test Methods
Shear Strength Type Substrate Test Method
180 psi Lap shear strength Aluminum/Aluminum 12.7 x 25.4 x 1 mm (0.5 x 1 x 0.040 inch), ASTM D 816
Elongation Test Methods
Elongation Test Method
5 % ASTM D 412
Shore A Hardness Test Methods
Shore A Hardness Shore Hardness Test Method
33 ASTM D 2240
Specific Gravity Test Methods
Specific Gravity Test Method
1.040 CTM 0097