3M Duct Sealer 900 Datasheet 3M Duct Sealer 900

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  • Description for 3M Duct Sealer 900

    Firm, rubbery with gap filling properties • Economical for HVAC ducts

    *See Terms of Use Below

    Application Type Sealer
    1 Part or 2 Part 1-Part
    Material Form Liquid, Medium Paste, Oil Soluble Elastomer
    Substrate Fiber, Aluminium, Elastomer, Rubber, Cold rolled Steel, Galvanized Steel, Galvanized Steel, Synthetic Rubber, Painted Steel
    Industry Electronics
    Manufacturer 3M
    Chemistry Isohexanes, Synthetic Rubber, Oil Soluble Elastomer
    Application Method Spatula, Trowel
    Cure Method Solvent
    Cure Time (min) Fast
    Viscosity (cPs) 200,000 to 300,000
    Color Gray
  • Technical Data for 3M Duct Sealer 900

    Overview
    • Application Type
    • 1 Part or 2 Part
      • 1-Part
    • Material Form
      • Elastomer - Oil Soluble Elastomer
      • Liquid
      • Paste - Medium Paste
    • Substrate
      • Glass - Fiber
      • Metal - Aluminium
      • Steel - Cold rolled Steel, Painted Steel
      • Galvanized - Galvanized Steel
      • Plastic - Elastomer
      • Rubber - Synthetic Rubber
      • Galvanized Steel
    • Industry
    • Chemistry
      • Synthetic Rubber
      • Other - Isohexanes, Oil Soluble Elastomer
    • Application Method
      • Dispenser - Application equipment
      • Flow - Flow equipment
      • Spatula/Trowel - Spatula, Trowel
    • Cure Method
      • Solvent
    • Color
      • Gray
    Specifications
    Cure Specs
    Cure Time (min) Fast
    Viscosity (cPs) 200,000 to 300,000 Test Method
    Set Time (min) 2,880 Test Method
    Tack Free Time (min) 15 Test Method
    Hardness
    Flexibility Firm
    Other Properties
    Flash Point (°F) 1.4
    % Solids (%) 66, 64 to 68 Test Method
    Business Information
    Shelf Life Details Store product at 60-80°F (16-27°C) for maximum storage life. Higher temperatures reduce normal storage life. Lower temperatures cause increased viscosity of a temporary nature. Rotate stock on a “first in-first out” basis. When stored at recommended temperatures in original unopened container, this product has a shelf life of 15 months from the date 3M ships the product to a customer or distributor.
    Shelf Life Temperature (°F) 61 to 81
    Shelf Life Type from the date 3M ships
    Shelf Life (mon) 15
  • Best Practices for 3M Duct Sealer 900

    *See Terms of Use Below

    1. Surface Preparation

      For optimum adhesion, surfaces to be sealed must be clean, dry and free from oil, grease or other foreign material.

    2. Application

      3M™Scotch-Seal™Duct Sealer 900 can be applied by hand or pressure caulking equipment, trowel, or spatula. Sealed surfaces should be mated as soon after application of the sealer as possible, preferably before the sealant has “skinned” over. If the sealant develops a “surface skin” prior to joining the sealed surfaces, care must be taken when mating the surfaces to ensure that the sealant surface is broken or ruptured in order to form a good, serviceable seal.

    3. Curing

      At 75°F (24°C), 40 mil wet films of Scotch-Seal 900 skin over or are tack free to the touch in approximately 15 minutes. The time required for thorough drying will vary with environmental conditions and sealant thickness. At 75°F (24°C), 40 mil wet films require about 48 hours to set to a firm rubber.

    4. Clean-Up

      Equipment and tools can be cleaned with 3M™ Citrus Base Industrial Cleaner, 3M™ Scotch-Grip™ Solvent No. 2 or aliphatic type solvents.* This can best be accomplished by cleaning before the sealant has dried.

      *Note: When using solvents, extinguish all ignition sources, including pilot lights, and follow the manufacturer’s precautions and directions for use.

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    *See Terms of Use Below

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Set Time Test Methods
Set Time Set Temperature
2,880 min 24°C
Tack Free Time Test Methods
Tack Free Time Tack Free Temperature
15 min 24°C
Viscosity Test Methods
Viscosity Test Method Temperature
200,000 to 300,000 cPs Brookfield RVF, No. 7 sp. @ 10 rpm @ 80°F 27°C
% Solids Test Methods
% Solids Test Method
66 % By weight
64 to 68 % By weight