Bostik Chem-Calk 916 Datasheet Bostik Chem-Calk 916

Information provided by Gluespec
  • Description for Bostik Chem-Calk 916

    One-component, construction grade textured sealant capable of dynamic joint movement; properties remain stable in severe weather and temperature changes.

    *See Terms of Use Below

    Application Type Seal
    1 Part or 2 Part 1 Part
    Material Form Paste
    Substrate Ceramic, Porous, Steel, Wood
    Industry Perimeters of doors, Perimeters of windows
    Manufacturer Bostik
    Chemistry Polyurethane
    Cure Method Moisture
    Viscosity (cPs) Non-Sag, Slump
    Color Black, Brown: Almond, Tan, Limestone, Gray: Aluminum Stone, Limestone, White, Bronze, Buff, Buff, Medium Bronze, Medium Bronze, Milgard Tan
    High Temperature Resistance (°C) 66
    Low Temperature Resistance (°C) -29
    Durability Tough
  • Best Practices for Bostik Chem-Calk 916

    *See Terms of Use Below

    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® 916 is a moisture cure, polyurethane sealant. On wood, with ambient air at 50% relative humidity and at 73°F, polyurethane 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.

    3. Clean-Up

      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 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).

Popular Articles

Q&A Tutorial on the Adhesive Sealant Selection Process

Read Article

What are the Types of Adhesive Sealants? An In-Depth Q&A

Read Article

Infographic: ENSURING A STRONG BOND - 6 Basic Methods of Surface Preparation

Read Article

Testing the effectiveness of surface treatments

Read Article

Sponsored Articles

Unique Advantages of Contact Adhesives

Read Article

Using LOCTITE® 454™ is a Valid Option for Engineers Working with a Wide Variety of Materials

Read Article

Sylgard 184 by DOW is the Top Choice for a Transparent, Silicone Encapsulant. Read Why:

Read Article

Case Study: Creating reliable, corrosion-free bonds with LORD® 406 acrylic adhesive

Read Article

Featured Ads

Gluespec Poll

Who do you read or follow for engineering news and entertainment?
Tack Free Time Test Methods
Tack Free Time Test Method
Work / Pot Time Test Methods
Work / Pot Time Test Method
Tensile Strength Test Methods
Tensile Strength Cure Time Cure Temperature Cure Humidity Test Method
135 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
UV Resistance Test Methods
UV Resistance Test Method
Pass ASTM C 793
Elongation Test Methods
Elongation Test Method
564 % ASTM D 412, at Break, After 14 days cure at 77°F and 50% RH
Modulus Test Methods
Modulus Test Method
45 psi ASTM D 412, After 14 days cure at 77°F and 50% RH, Modulus @ 25%
59 psi ASTM D 412, After 14 days cure at 77°F and 50% RH, Modulus @ 100%
Shore A Hardness Test Methods
Shore A Hardness Shore Hardness Test Method Hardness Temperature
38 ASTM D 2240, After 14 days cure at 77°F and 50% RH 25°C