• Description for 3M 2001

    A medium-density, two-part silicone elastomer supplied as A and B liquid components designed for use as a fire, smoke, noxious gas and water sealant.

    *See Terms of Use Below

    Application Type Seal
    1 Part or 2 Part 2-Part
    Material Form Liquid
    Industry Cable bundles and trays
    Manufacturer 3M
    Chemistry Silicone RTV Foam
    Cure Method RTV
    Color Black, Dark gray
    Density (g/cm³) 18-25 (lbs/ft3)
    Key Specifications NEC (NFPA-70), BOCAI, ICBO, SBCCI and NFPA Code #101
  • Technical Data for 3M 2001

    • Application Type
    • 1 Part or 2 Part
      • 2-Part
    • Material Form
      • Liquid
    • Industry
      • Cable - Cable bundles and trays
      • Construction - Construction openings, Fire-rated building partitions and assemblies against the passage of flame, noxious gas, smoke and water.
      • Other - Large and/or complex penetrations, Conduit bundles, Multiple pipe runs, Penetrations through floor slabs, Walls
    • Chemistry
    • Cure Method
      • RTV (Room Temperature Vulcanization) - RTV
    • Color
      • Black
      • Gray - Dark gray
    • Key Specifications
      • UL (Underwriters Laboratory), ULC (Underwriters Laboratories of Canada), NFPA (National Fire Protection Association) - NEC (NFPA-70), BOCAI, ICBO, SBCCI and NFPA Code #101
    Bond Strength
    Tensile Strength (psi) 15 Test Method
    Other Properties
    Coefficient of Thermal Expansion (CTE) 3.2e-4 (cm/cm/°C) Test Method
    Density (g/cm³) 18-25 (lbs/ft3) Test Method
    Business Information
    Shelf Life Details Part A and Part B components of 3M Fire Barrier 2001 Silicone RTV Foam are delivered in separate containers. They should be stored out of the weather in their unopened containers at or below 90° °F (32° °C). When stored in the orignal unopened containers at this temperature, shelf life is 12 months from date of shipment from 3M. Patially used containers should be sealed tightly and stored in a similar manner.
    Shelf Life Type From date of shipment
    Shelf Life (mon) 12
  • Best Practices for 3M 2001

    *See Terms of Use Below

    1. Surface Preparation

      The penetration opening and all related surfaces must be clean of dirt, dust and loose impediments. Surfaces must also be free of water, oil or other free liquids.

    2. Mixing

      Prior to use, Part A and Part B components must be thoroughly stirred in their original containers to uniformly redisperse any fillers or pigments that may have settled. When mixing Part A and Part B, use clean containers and mixing equipment. If stirred containers stand for more than four hours, re-stir.

      To properly catalyze 3M Fire Barrier 2001 Silicone RTV Foam, an equal quantity of Part A is added to an equal quantity of Part B by either weight or volume. For batch mixing by hand or power mix, vigorous and thorough mixing should be maintained for 30 to 60 seconds. The mixed product begins to foam shortly after mixing, therefore, it should be dispensed in the penetration as soon as mixing is completed. For large-volume applications, the use of suitable automatic mixing, metering and dispensing equipment is recommended. A list of equipment manufacturers is available from 3M upon request.

      The type and degree of mixing can significantly affect the cell structure and density of the final foam product. Hand mixing will typically result in higher densities than power mixing by automatic mixing, metering and dispensing equipment. Typical expansion is 2:1 to 4:1 depending on the type and degree of mixing

    3. Clean-Up

      Excess foam around the penetration seal can be removed with a sharp knife or blade. Spills of Part A and Part B liquid components can be removed with high flash-point mineral spirit solvent. Follow manufacturers precautions when handling solvents.

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Work / Pot Time Test Methods
Work / Pot Time Test Method Temperature
Tensile Strength Test Methods
Tensile Strength Cure Time Cure Temperature Test Method
15 psi 1,440 min 25°C ASTM D 3574, One part A thoroughly mixed with one part B and cured at 25°C (77°F) for 24 hours
Coefficient of Thermal Expansion (CTE) Test Methods
Coefficient of Thermal Expansion (CTE) CTE Temperature (°C) CTE Test Method
3.2e-4 (cm/cm/°C) -25 to 150°C CTM 0585
Density Test Methods
Density Temperature Test Method
18-25 (lbs/ft3) 25°C CTM 0845A, One part A thoroughly mixed with one part B and cured at 25°C (77°F) for 24 hours., Power mixed for 30 seconds and cured in nonconfined condition.