Dow 737 Neutral Cure Sealant

Dow 737 Neutral Cure Sealant Datasheet
  • Description for Dow 737 Neutral Cure Sealant

    One-part, RTV silicone sealant, low odor, neutral cure, will not corrode substrates, good adhesion, cures quickly to a tough rubbery solid.

    *See Terms of Use Below

    Application Type Bond, Seal, Gasketing: Formed in-place-Gaskets
    1 Part or 2 Part 1 Part
    Material Form Nonslumping paste
    Substrate Glass, Metals, Plastics, Rubbers, Steel
    Industry Coaxial connectors, Power Tools, Smart Home Devices
    Manufacturer Dow
    Chemistry Silicone
    Cure Method Moisture, Neutral Cure
    Cure Temperature (°C) 20 to 25, 25
    Odor Details Low
    Cure Time (min) Fast, 10,080
    Viscosity (cPs) Non-sag, NonFlow
    Color Black, Translucent, White
    High Temperature Resistance (°C) 177
    Low Temperature Resistance (°C) -65
    Key Specifications UL (Underwriters Laboratory), ULC (Underwriters Laboratories of Canada), NFPA (National Fire Protection Association): UL QMFZ2 94HB
  • Technical Data for Dow 737 Neutral Cure Sealant

    Overview
    • Application Type
      • Gasketing: Formed-in-Place Gaskets - Formed in-place-Gaskets
      • Adhesive - Bond
      • Sealant - Seal
    • 1 Part or 2 Part
      • 1 Part or 2 Part - 1 Part
    • Material Form
      • Paste - Nonslumping paste
    • Substrate
    • Industry
      • Connectors - Coaxial connectors
      • Smart Home Devices
      • Industrial - Appliances, Freezer liners, Mechanical fasteners, Refrigerator
      • Power Tools
      • Appliances - Refrigerator, Freezer liners
    • Chemistry
    • Cure Method
      • Moisture / Condensation Cure - Moisture
      • Other - Neutral Cure
    • Color
      • Translucent
      • Black
      • White
    • Key Specifications
      • UL (Underwriters Laboratory), ULC (Underwriters Laboratories of Canada), NFPA (National Fire Protection Association): UL 94 HB - UL QMFZ2 94HB
    Specifications
    Cure Specs
    Cure Temperature (°C) 20 to 25, 25 Test Method
    Odor Details Low
    Cure Time (min) Fast, 10,080 Test Method
    Viscosity (cPs) Non-sag, NonFlow
    Tack Free Time (min) 14 Test Method
    Work / Pot Time (min) 3.00 to 6 Test Method
    Bond Strength
    Peel Strength (piw) 20 (ppi) Test Method
    Tensile Strength (psi) >175 Test Method
    Material Resistance
    High Temperature Resistance (°C) 177
    Low Temperature Resistance (°C) -65
    Moisture/Humidity Resistance Moisture/Humidity Resistance
    Hardness
    Shore A Hardness 33 Test Method
    Elongation (%) >300 Test Method
    Flexibility Flexible
    Other Properties
    Specific Gravity 1.040 Test Method
    Business Information
    Shelf Life Details Product should be stored at or below 32°C (90°F) in original, unopened containers.
    Shelf Life Temperature (°F) <90
    Shelf Life Type from date of manufacture
    Shelf Life (mon) 24
    Not Good For
    Don't Use With impregnated wood, oil based caulks, and certain green or partially vulcanized rubber gaskets and tapes, surfaces that will be painted
  • Best Practices for Dow 737 Neutral Cure Sealant

    *See Terms of Use Below

    1. Surface Preparation

      All surfaces must be clean and dry. Metal and glass surfaces should be cleaned by wiping with a solvent such as Dow Corning® OS Fluids and an oil-free rag.

    2. Application

      Dow Corning 737 Neutral Cure Sealant should be applied in a continuous operation. If needed, tool the sealant with light pressure to spread it against the substrate. Tool immediately after sealant application and before a skin forms.

    3. Clean-Up

      Uncured sealant may be cleaned from tools and nonporous surfaces using Dow Corning OS Fluids or commercial solvents. On porous surfaces, allow excess sealant to cure and then remove by abrasion or other mechanical means.

  • Comparable Materials for Dow 737 Neutral Cure Sealant

    *See Terms of Use Below

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Cure Temperature Test Methods
Cure Temperature Cure Time Test Method
20 to 25°C
25°C As Cured 7 days at 77°F (25°C) and 50 percent RH
Cure Time Test Methods
Cure Time Test Method
Fast
10,080 min As Cured 7 days at 77°F (25°C) and 50 percent RH
Tack Free Time Test Methods
Tack Free Time Tack Free Temperature Test Method
14 min 25°C CTM 0095, 77°F 25°C and 50 percent RH
Work / Pot Time Test Methods
Work / Pot Time Test Method Temperature
3.00 to 6 min CTM 0098, Exposed to Air at 77°F 25°C and 50 percent RH 25°C
Tensile Strength Test Methods
Tensile Strength Cure Time Cure Temperature Cure Humidity Test Method
>175 psi 10,080 min 25°C 50 % CTM 0137A
Peel Strength Test Methods
Peel Strength Cure Time Cure Temperature Cure Humidity Test Method
20 (ppi) 10,080 min 25°C 50 % CTM 0293, Laboratory tests and market tests have demonstrated adhesion to many substrates, including acrylonitrile butadiene styrene, anodized aluminum, brass, carbon steel, copper, galvanized steel, glass, neoprene, phenolic G-10, silicone rubber, stainless steel and wrought iron.
Elongation Test Methods
Elongation Test Method
>300 % CTM 0137A, As Cured 7 days at 77°F (25°C) and 50 percent RH
Shore A Hardness Test Methods
Shore A Hardness Shore Hardness Test Method Hardness Temperature
33 CTM 0099, As Cured 7 days at 77°F (25°C) and 50 percent RH 25°C
Specific Gravity Test Methods
Specific Gravity Test Method
1.040 CTM 0097