Bostik Chem-Calk 2000 Smooth

Bostik Chem-Calk 2000 Smooth Datasheet
  • Description for Bostik Chem-Calk 2000 Smooth

    One-component; high performance; low VOC; non-gassing and color fast sealant for joints that may experience dynamic movement.

    *See Terms of Use Below

    Application Type Bond, Seal
    1 Part or 2 Part 1 Part
    Material Form Paste
    Substrate Metal, Fiber Cement Board (FCB), Wood, Porous substrates, Vinyl
    Industry Windows, Doors
    Manufacturer Bostik
    Chemistry Non-silicone, Polyurethane
    Cure Method Moisture
    Cure Temperature (°C) 77
    Cure Time (min) 1,440 to 4,320
    Viscosity (cPs) Sag, Slump
    Color Almond, Stone, White, Bronze
    Key Specifications ASTM (American Standard Test Method): C920: ASTM C920, TYPE S, GRADE NS, CLASS 25, USE NT, A AND M
  • Technical Data for Bostik Chem-Calk 2000 Smooth

    Overview
    • Application Type
    • 1 Part or 2 Part
      • 1 Part or 2 Part - 1 Part
    • Material Form
      • Paste
    • Substrate
      • Porous Substrates
      • Metal
      • Vinyl
      • Wood
      • Stone - Fiber Cement Board (FCB)
    • Industry
      • Industrial - Wall penetrations on vinyl
      • Construction - Metal building construction
      • Construction Window - Windows
      • Construction Door - Doors
    • Chemistry
    • Application Method
      • Dispenser - Gun
    • Cure Method
      • Moisture / Condensation Cure - Moisture
    • Color
      • Brown - Almond
      • Gray - Stone
      • White
      • Yellow - Bronze
    • Key Specifications
      • ASTM (American Standard Test Method): C920: Class 25 - ASTM C920, TYPE S, GRADE NS, CLASS 25, USE NT, A AND M
    Specifications
    Cure Specs
    Cure Temperature (°C) 77 Test Method
    Cure Time (min) 1,440 to 4,320 Test Method
    Viscosity (cPs) Sag, Slump
    Tack Free Time (min) 30 to 45
    Work / Pot Time (min) <30 Test Method
    Bond Strength
    Peel Strength (piw) >5 Test Method
    Tensile Strength (psi) 254 Test Method
    Hardness
    Shore A Hardness 34 Test Method
    Elongation (%) 531 Test Method
    Flexibility Elastomeric
    Modulus (psi) 50, 89 Test Method
    Business Information
    Shelf Life Details Shelf life of Bostik Chem-Calk 2000 Smooth must be checked prior to using the product do not use past its shelf life. Caulk past its shelf life may not perform or adhere as described by this data sheet. High temperature and high relative humidity may reduce significantly the shelf life of moisture cure sealants. If you are unsure of the expiration date of your Bostik product, please call customer service at 1-888-603-8556 to check if the product is still within its shelf life.
    Not Good For
    Don't Use For Glazing applications., Narrow joints, fillet joints and nail face holes., over joints, for horizontal joints or traffic-bearing joints where abrasion resistance is required, glazing applications
    Don't Use With damp, contaminated, loose surfaces
  • Best Practices for Bostik Chem-Calk 2000 Smooth

    *See Terms of Use Below

    1. Surface Preparation

      See limitations about surface preparation. Surfaces must be structurally clean, dry (no frost) and structurally sound, free of contaminants, including but not limited to dust, dirt, loose particles, tar, asphalt, rust, mill oil, etc. If substrate is painted or coated, scrape away all loose and weakly bonded paint or coating. Any paint or coating that cannot be removed must be tested to verify adhesion of the sealant or to determine the appropriate surface preparation if needed. (See ASP section on next page for details.) To remove laitance and any other loose material, clean concrete, stone or other masonry materials with nonalcoholic-based solvent by washing, grinding, sandblasting or wire brushing as necessary. Do not use water to clean substrates. Dust must be thoroughly removed after cleaning.

    2. Curing

      Bostik Chem-Calk 2000 Smooth is a moisture cure, hybrid sealant. On wood, with ambient air at 50% relative humidity and at 73°F, hybrid sealants will generally skin within one hour and cure 1/16 of an inch per day. Lower temperature and lower relative humidity will significantly increase the skin time and cure time of a polyurethane sealant.

    3. Clean-Up

      After dry-wiping uncured sealant from substrates and tools, remaining uncured sealant can be removed by using Xylene, Toluene or similar aromatic solvents. Please refer to the MSDSs provided for these solvents before use. Bostik® Hand and Tool Towels can also remove uncured sealant. Cured sealant is usually very difficult to remove without altering or damaging the surface to which the sealant has been misapplied. Cured sealant can be removed by abrasion or other mechanical means (scrapers, putty knives).

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Cure Temperature Test Methods
Cure Temperature Cure Time Test Method
77°C Varies w/relative humidity
Cure Time Test Methods
Cure Time Test Method
1,440 to 4,320 min Varies w/relative humidity
Work / Pot Time Test Methods
Work / Pot Time Test Method
<30 min Bostik Test Method
Peel Strength Test Methods
Peel Strength Cure Time Cure Temperature Cure Humidity Test Method
>5 piw 20,160 min 25°C 50 % TT-S-00230C/ASTM C 794, After 14 days cure at 77°F and 50% RH
Tensile Strength Test Methods
Tensile Strength Cure Time Cure Temperature Cure Humidity Test Method
254 psi 20,160 min 25°C 50 % @ Break, ASTM D 412, After 14 days cure at 77°F and 50% RH
Elongation Test Methods
Elongation Test Method
531 % ASTM D 412, After 14 days cure at 77°F and 50% RH, at break
Modulus Test Methods
Modulus Test Method
50 psi @ 50% Elongation, ASTM D 412, After 14 days cure at 77°F and 50% RH
89 psi @ 100% Elongation, ASTM D 412, After 14 days cure at 77°F and 50% RH
Shore A Hardness Test Methods
Shore A Hardness Shore Hardness Test Method Hardness Temperature
34 ASTM D 2240, After 14 days cure at 77°F and 50% RH 25°C