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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.Application Type Seal 1 Part or 2 Part 1-Part Material Form Paste Substrate Metals, Hardiplank, Wood, Concrete, Vinyls 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 -
Technical Data for Bostik Chem-Calk FCB Textured
Overview
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Application Type
- Sealant - Seal
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1 Part or 2 Part
- 1-Part
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Material Form
- Paste
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Industry
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Chemistry
- Polyurethane - Urethane
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Application Method
- Contact - Positive pressure adequate
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Cure Method
- Moisture / Condensation Cure - Moisture
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Color
- Brown - Tan
- Gray - Stone
- White
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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 -
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Best Practices for Bostik Chem-Calk FCB Textured
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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.
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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.
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Cure Temperature Test Methods
Cure Temperature | Cure Time Test Method |
---|---|
25°C | Varies w/ Relative |
25°C | After 14 days cure at 77°F & 50% RH |
Cure Time Test Methods
Cure Time | Test Method |
---|---|
2,880 to 5,760 min | Varies w/ Relative |
20,160 min | After 14 days cure at 77°F & 50% RH |
Tack Free Time Test Methods
Tack Free Time | Test Method |
---|---|
240 min | ASTM C 679 |
Work / Pot Time Test Methods
Work / Pot Time | Test Method |
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60 min | Bostik Test Method |
Peel Strength Test Methods
Peel Strength | Cure Time | Cure Temperature | Test Method |
---|---|---|---|
>25 piw | 20,160 min | 25°C | ASTM C 794, After 14 days cure at 77°F & 50% RH |
Tensile Strength Test Methods
Tensile Strength | Cure Time | Cure Temperature | Cure Humidity | Test Method |
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143 psi | 20,160 min | 25°C | 50 % | ASTM D 412, After 14 days cure at 77°F & 50% RH |
UV Resistance Test Methods
UV Resistance | Test Method |
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Good | ASTM C 793 |
Elongation Test Methods
Elongation | Test Method |
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564 % | ASTM D 412, at Break, After 14 days cure at 77°F & 50% RH |
Modulus Test Methods
Modulus | Test Method |
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79 psi | @ 100% Elongation ASTM D 412, After 14 days cure at 77°F & 50% RH |
Shore A Hardness Test Methods
Shore A Hardness | Shore Hardness Test Method | Hardness Temperature |
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38 | ASTM D 2240, After 14 days cure at 77°F & 50% RH | 25°C |