Dow Contractors Weatherproofing Sealant

Dow Contractors Weatherproofing Sealant Datasheet
  • Description for Dow Contractors Weatherproofing Sealant

    Primerless on most common nonporous building substrates; easy gunnability in all weather conditions.

    *See Terms of Use Below

    Application Type Bond, Seal
    1 Part or 2 Part 1 Part
    Material Form Paste
    Substrate Painted aluminum, Nonporous, Porous, EIFS, Concrete, Precast
    Industry Windows
    Manufacturer Dow
    Chemistry Silicone
    Cure Method Moisture
    Cure Temperature (°C) 25, 25
    Cure Time (min) 180 to 360, 10,080 to 20,160
    Color Gray: Aluminum, 11 standard stocked colors
    High Temperature Resistance (°C) 121
    Low Temperature Resistance (°C) -40
    Key Specifications ASTM (American Standard Test Method): C 920: ASTM C 920, Type S, Grade NS, Class 25, Use NT, M, A and O (granite), TT (U.S. Federal Specification): S-00230C: TT-S-01543A; TT-S-00230C, Type II, Class A ±25% movement capability, TT (U.S. Federal Specification): TT-S-01543A; TT-S-00230C, Type II, Class A ±25% movement capability
  • Technical Data for Dow Contractors Weatherproofing Sealant

    Overview
    • Application Type
    • 1 Part or 2 Part
      • 1 Part or 2 Part - 1 Part
    • Material Form
      • Paste
    • Substrate
      • Non-Porous Substrates - Nonporous
      • Porous Substrates - Porous
      • Concrete
      • Aluminum - Painted aluminum
      • Stone - EIFS, Precast
      • Other - Masonry
    • Industry
      • Industrial - Concrete panel joints, Curtainwall joints, Expansion and control joints, Tilt-up panel joints
      • Construction - Perimeter caulking, Bedding of frames, Bedding of panels, Bedding of mullions, panels and frames), Radon mitigation, EIFS, Panels, Doors
      • Construction Window - Windows
    • Chemistry
    • Application Method
      • Dispenser - Gun
    • Cure Method
      • Moisture
    • Color
      • Gray: Aluminum
      • Other - 11 standard stocked colors
    • Key Specifications
      • ASTM (American Standard Test Method): C 920: Class 25 - ASTM C 920, Type S, Grade NS, Class 25, Use NT, M, A and O (granite)
      • TT (U.S. Federal Specification): S-00230C: Class A - TT-S-01543A; TT-S-00230C, Type II, Class A ±25% movement capability
      • TT (U.S. Federal Specification): S-001543A - TT-S-01543A; TT-S-00230C, Type II, Class A ±25% movement capability
    Specifications
    Cure Specs
    Application Temperature (°F) -20 to 120
    Cure Temperature (°C) 25, 25 Test Method
    Cure Time (min) 180 to 360, 10,080 to 20,160 Test Method
    Bond Strength
    General Bond Strength (psi) Balanced
    Peel Strength (piw) 20 to 28 (lb/in) Test Method
    Tensile Strength (psi) 180 Test Method
    Material Resistance
    Environmental Resistance Unique
    High Temperature Resistance (°C) 121
    Low Temperature Resistance (°C) -40
    Hardness
    Shore A Hardness 25, 20 to 30 Test Method
    Elongation (%) 6 Test Method
    Modulus (psi) Medium
    Business Information
    Shelf Life Details Dow Corning Contractors Weatherproofing Sealant has a shelf life of 12 months from date of manufacture. Refer to product packaging for “Use By” date.
    Shelf Life Type From date of manufacture
    Shelf Life (mon) 12
    Not Good For
    Don't Use For Silicone structural glazing, Application in confined areas without proper ventilation, Joints under constant water submersion
  • Best Practices for Dow Contractors Weatherproofing Sealant

    *See Terms of Use Below

    1. Surface Preparation

      The joint interface must be clean, dry and free from oils, loose mortar, laitance, form release agents, waterproofings, dampproofings and other contaminants. A thorough wire brushing, grinding, sandblasting or solvent cleaning may be required to expose clean, sound, virgin surface.

    2. Application

      Install backer material or joint filler, setting blocks, spacer shims and tapes as specified. Apply sealant in a continuous operation, using a positive pressure adequate to properly fill and seal the joint.

    3. Clean-Up

      Immediately remove all excess sealant and smears adjacent to the joint with Xylol or Toluol as work progresses.

      Follow solvent manufacturer’s recommended safe handling instructions and applicable federal, state and local regulations.

  • Comparable Materials for Dow Contractors Weatherproofing Sealant

    *See Terms of Use Below

    Spec Engine® Results

    Closest Results from this Manufacturer

Questions about this material?

Dow - Contractors Weatherproofing Sealant

Get personal assistance with your specific application needs.

Your Profile Edit

Popular Articles

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

Read Article

Testing the effectiveness of surface treatments

Read Article

Silicones in LED Lighting | Gluespec

Read Article

What Are the Differences Between Adhesives and Sealants?

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
Information provided by Gluespec

Why Register?

  • View Technical Details
  • View Test Methods
  • View Key Specifications
  • View Similar Materials
  • Save your Project Searches

Already registered? Sign in.

Questions? Learn more about Gluespec

Gluespec Poll

Which answer best describes a project you are currently working on?
Cure Temperature Test Methods
Cure Temperature Cure Time Test Method
25°C Cure rate at 77°F and 50% RH, Initial skinning
25°C Cure rate at 77°F and 50% RH, Through cure (3/8" [9 mm] depth)
Cure Time Test Methods
Cure Time Test Method
180 to 360 min Cure rate at 77°F and 50% RH, Initial skinning
10,080 to 20,160 min Cure rate at 77°F and 50% RH, Through cure (3/8" [9 mm] depth)
Tensile Strength Test Methods
Tensile Strength Test Method
180 psi ASTM D 412
Peel Strength Test Methods
Peel Strength Test Method
20 to 28 (lb/in) ASTM C 794
Elongation Test Methods
Elongation Test Method
6 % ASTM D 412, Ultimate
Shore A Hardness Test Methods
Shore A Hardness Shore Hardness Test Method
25 Hardness/Durometer Test Method
20 to 30 ASTM C 661, at Standard Conditions