Bostik Chem-Calk FCB Textured

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Description for Bostik Chem-Calk FCB Textured

One-component; superior adhesion to fiber cement boards; outstanding elasticity; good adhesion to most building materials.

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Application Type	Seal
1 Part or 2 Part	1-Part
Material Form	Paste
Substrate	Metals, Vinyls, Hardiplank, Wood, Concrete
Manufacturer	Bostik
Chemistry	Urethane
Cure Method	Moisture
Cure Temperature (°C)	25, 25
Cure Time (min)	2,880 to 5,760, 20,160
Viscosity (cPs)	Sag, Slump
Color	Tan, Stone, White
Ozone Resistance	Good Ozone resistance
High Temperature Resistance (°C)	66
Low Temperature Resistance (°C)	-40
Key Specifications	ASTM (American Standard Test Method): ASTM C920; Elastomeric Joint Sealant as Type S, Grade NS, Class 25, Use NT, A and M, CAN/CGSB (Canadian General Standards Board): Canadian Specification CAN/CGSB 19.13, TT (U.S. Federal Specification): TT-S00230C

Best Practices for Bostik Chem-Calk FCB Textured

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Technical Data for Bostik Chem-Calk FCB Textured

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Overview

Application Type
- Sealant - Seal
1 Part or 2 Part
- 1-Part
Material Form
- Paste
Substrate
- Concrete
- Metal - Metals
- Vinyl - Vinyls
- Wood
- Stone - Hardiplank
Industry
- Construction
Chemistry
- Polyurethane - Urethane
Application Method
- Contact - Positive pressure adequate
Cure Method
- Moisture / Condensation Cure - Moisture
Color
- Brown - Tan
- Gray - Stone
- White
Key Specifications
- ASTM (American Standard Test Method) : C920 - ASTM C920; Elastomeric Joint Sealant as Type S, Grade NS, Class 25, Use NT, A and M
- CAN/CGSB (Canadian General Standards Board) : 19.13 - Canadian Specification CAN/CGSB 19.13
- TT (U.S. Federal Specification) : S-00230C - TT-S00230C

Specifications

Cure Specs

Cure Temperature (°C)	25, 25	Test Method
Cure Time (min)	2,880 to 5,760, 20,160	Test Method
Viscosity (cPs)	Sag, Slump
Tack Free Time (min)	240	Test Method
Work / Pot Time (min)	60	Test Method

Bond Strength

General Bond Strength (psi)	Superior
Peel Strength (piw)	>25	Test Method
Tensile Strength (psi)	143	Test Method

Material Resistance

Ozone Resistance	Good Ozone resistance
UV Resistance	Good	Test Method
High Temperature Resistance (°C)	66
Low Temperature Resistance (°C)	-40
Moisture/Humidity Resistance	Moisture/humidity resistance

Hardness

Shore A Hardness	38	Test Method
Elongation (%)	564	Test Method
Modulus (psi)	79	Test Method

Business Information

Shelf Life Details	When stored at or below 80°F (27°C), Chem-Calk® FCB urethane weatherproofing sealant has a shelf life of fifteen months from date of manufacture.
Shelf Life Temperature (°F)	<81
Shelf Life Type	From date of manufacture
Shelf Life (mon)	15

Best Practices for Bostik Chem-Calk FCB Textured

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1. Application
  
  Install backup material or joint filler. Apply Chem-Calk® FCB urethane sealant in a continuous operation using a positive pressure adequate to properly fill and seal the joint. Tool the sealant with adequate pressure to spread the sealant against the backup material and onto the joint surfaces. A tool with a concave profile is recommended to keep the sealant within the joint.
2. Clean-Up
  
  Excess sealant should be dry-wiped from all surfaces while still uncured, following with a commercial solvent such as xylol, toluol, or methyl ethyl ketone. Should sealant accidentally begin to cure on adjacent porous surfaces, the excess sealant should be allowed to progress through the initial cure or setup. It should be removed promptly by abrasion or other mechanical means.
Comparable Materials for Bostik Chem-Calk FCB Textured

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Spec Engine^® Results
- Flex-221(Sika)
  A high-quality, multi purpose, non-sag, polyurethane sealant that cures on exposure to atmospheric humidity to form a durable elastomer. Bonds well to a wide variety of substrates
- Flex-291(Sika)
  A One-component, marine grade polyurethane elastomeric adhesive and sealant. Fast cure/tack-free time, NSF approved for potable water (black and white only), USDA approved for incidental food contact.
- Flex-221 SF(Sika)
  A solvent-free, 1-component, fast curing, polyurethane-based, elastomeric sealant. A moisture-cured, non-sag system. Remains permanently elastic, and is suitable for sealing materials with dissimilar coefficients of expansion.
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