Bostik Chem-Calk Painter's Caulk

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Description for Bostik Chem-Calk Painter's Caulk

One-component, siliconized, acrylic latex caulk; easy gunnability; non-sag; low odor; quick skinning; mold and mildew resistant with outstanding flexibility.

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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

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Technical Data for Bostik Chem-Calk Painter's Caulk

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Overview

Application Type
- Sealant - Seal
1 Part or 2 Part
- 1 Part or 2 Part - 1 Part
Material Form
- Paste
Substrate
- Porous Substrates
Industry
- Industrial - Pipes, Sheet rock, Wall joints
- Construction - Kitchen
- Construction Window - Window frame
- Construction Door - Door frame
- Other - Bathroom
Chemistry
- Acrylic - Siliconized acrylic latex
Application Method
- Dispenser - Gun
Cure Method
- Pressure Sensitive (min) - Pressure Sensitive
Color
- Translucent
- Brown - Tan
- Off-White - Cream
- White

Specifications

Cure Specs

Cure Time (min)	1,440, >20,160	Test Method
Viscosity (cPs)	Non-Sag
Tack Free Time (min)	15
Work / Pot Time (min)	5.00	Test Method

Bond Strength

Tensile Strength (psi)	175	Test Method

Hardness

Shore A Hardness	80	Test Method
Elongation (%)	370	Test Method
Flexibility	Flexible

Other Properties

Flash Point (°F)	>199.4

Business Information

Shelf Life Details	Shelf life of Bostik® Chem-Calk® Painters’ Caulk must be checked prior to using the product; do not use beyond the date of manufacturing found on the packaging.
Shelf Life Type	From date of manufacture

Not Good For

Don't Use With	horizontal surfaces, areas subject to water immersion or dynamic joints, such as expansion joints.

Best Practices for Bostik Chem-Calk Painter's Caulk

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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® 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.
3. Clean-Up
  
  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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