Bostik Chem-Calk Painter's Caulk
Application Type Seal 1 Part or 2 Part 1 Part Material Form Paste Substrate Porous substrates Industry Window frame, Door frame Manufacturer Bostik Chemistry Siliconized acrylic latex Cure Method Pressure Sensitive Cure Time (min) 1,440, >20,160 Viscosity (cPs) Non-Sag Color Tan, Cream, White, Translucent
Best Practices for Bostik Chem-Calk Painter's Caulk
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® Painters’ Caulk is a siliconized acrylic latex caulk formulated for the professional painter. Usually tack free in 15 minutes and paintable after one hour, its low odor and dirt resistance allows for use in many interior environments. Painters’ Caulk offers outstanding adhesion and flexibility when fully cured.
After dry-wiping uncured sealant from substrates and tools, remaining uncured sealant can be removed by using soap and water or 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 Time Test Methods
|Cure Time||Test Method|
|>20,160 min||After 14 days cure at 77°F and 50% RH|
Work / Pot Time Test Methods
|Work / Pot Time||Test Method|
|5.00 min||Ambient conditions, Bostik Test|
Tensile Strength Test Methods
|Tensile Strength||Cure Time||Cure Temperature||Cure Humidity||Test Method|
|175 psi||20,160 min||25°C||50 %||@ Break, ASTM D 412, After 14 days cure at 77°F and 50% RH|
Elongation Test Methods
|370 %||ASTM D 412, at break, After 14 days cure at 77°F and 50% RH|
Shore A Hardness Test Methods
|Shore A Hardness||Shore Hardness Test Method||Hardness Temperature|
|80||ASTM D 2240, After 14 days cure at 77°F and 50% RH||25°C|