Bostik Chem-Calk 2000 Textured

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Description for Bostik Chem-Calk 2000 Textured

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

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Application Type	Bond, Seal
1 Part or 2 Part	1-Part
Material Form	Paste
Substrate	Aluminum, Metal, Fiber Cement Board (FCB), Wood, Porous substrates, Vinyl
Industry	Windows, Doors
Manufacturer	Bostik
Chemistry	Solvent-Free
Cure Method	Moisture
Cure Temperature (°C)	25
Cure Time (min)	1,440 to 4,320
Viscosity (cPs)	Sag, Slump
Color	Stone, Almond, White, Bronze
Key Specifications	AAMA (American Architectural Manufacturers Association): 808.3-10: AAMA Compliant 808.3-10, ASTM (American Standard Test Method): C920: ASTM C920, Type S, Grade NS, Class 25, use NT, A & M.

Best Practices for Bostik Chem-Calk 2000 Textured

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Technical Data for Bostik Chem-Calk 2000 Textured

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Overview

Application Type
- Adhesive - Bond
- Sealant - Seal
1 Part or 2 Part
- 1-Part
Material Form
- Paste
Substrate
- Porous Substrates
- Metal
- Aluminum
- Vinyl
- Wood
- Stone - Fiber Cement Board (FCB)
Industry
- Industrial - Wall penetrations
- Construction - Metal building construction
- Construction Window - Windows
- Construction Door - Doors
Chemistry
- Solvent-Free
Application Method
- Dispenser - Gun
Cure Method
- Moisture / Condensation Cure - Moisture
Color
- Gray - Stone
- White
- Yellow - Bronze
- Other - Almond
Key Specifications
- AAMA (American Architectural Manufacturers Association) : 808.3-10 : 10 - AAMA Compliant 808.3-10
- ASTM (American Standard Test Method) : C920 : Class 25 - ASTM C920, Type S, Grade NS, Class 25, use NT, A & M.

Specifications

Cure Specs

Cure Temperature (°C)	25	Test Method
Cure Time (min)	1,440 to 4,320	Test Method
Viscosity (cPs)	Sag, Slump
Tack Free Time (min)	30 to 45	Test Method
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)	89, 50	Test Method

Business Information

Shelf Life Details	Shelf life of Chem-Calk 2000 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 1-800-7BOSTIK to check if the product is still within its shelf life.

Not Good For

Don't Use For	Glazing applications
Don't Use With	Damp, contaminated, loose surfaces, Horizontal joints or traffic-bearing joints, Bad Substrates

Best Practices for Bostik Chem-Calk 2000 Textured

*See Terms of Use Below
1. Design
  
  In general, more joint movement can be accommodated in a thin bead of sealant than a thick bead. Chem-Calk 2000 sealant should be no thicker than 1/2" (12.7mm) and no thinner than 1/4" (6.4mm). In joints between 1/2" and 1", the ratio of sealant width to depth should be approximately 2:1. Sealant depth in joints between 1/4" and 1/2" should be 1/4" deep. Joints with dynamic movement should not be designed in widths less than 1/4".
2. 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.
3. Curing
  
  Bostik® Chem-Calk® 2000 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.
4. 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 Towels and Specialty Adhesive Remover 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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