Application Type Bond, Seal 1 Part or 2 Part 1 Part Material Form Paste Substrate Aluminum, Porous substrates, Metal, Vinyl, Fiber Cement Board (FCB), Wood Industry Windows 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, White, Bronze, Almond 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.
Technical Data for Bostik Chem-Calk 2000 Textured
1 Part or 2 Part
- 1 Part or 2 Part - 1 Part
- Dispenser - Gun
- Gray - Stone
- Yellow - Bronze
- Other - Almond
- 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.
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
Peel Strength (piw) >5 Test Method Tensile Strength (psi) 254 Test Method
Shore A Hardness 34 Test Method Elongation (%) 531 Test Method Flexibility Elastomeric Modulus (psi) 89, 50 Test Method
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
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".
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.
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.
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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Cure Temperature Test Methods
|Cure Temperature||Cure Time Test Method|
|25°C||Varies w/relative humidity|
Cure Time Test Methods
|Cure Time||Test Method|
|1,440 to 4,320 min||Varies w/relative humidity|
Tack Free Time Test Methods
|Tack Free Time||Test Method|
|30 to 45 min||Bostik test method|
Work / Pot Time Test Methods
|Work / Pot Time||Test Method|
|<30 min||Bostik Test Method|
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|
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|
Elongation Test Methods
|531 %||ASTM D 412, After 14 days cure at 77°F and 50% RH, at Break|
Modulus Test Methods
|89 psi||@ 100% Elongation, ASTM D 412, After 14 days cure at 77°F and 50% RH|
|50 psi||@ 50% 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|