Dow 995 Silicone Structural Glazing Sealant

Dow 995 Silicone Structural Glazing Sealant Datasheet
  • Description for Dow 995 Silicone Structural Glazing Sealant

    Excellent weatherability and high resistance to ultraviolet radiation, heat and humidity, ozone and temperature extremes; excellent mechanical properties and unprimed adhesion.

    *See Terms of Use Below

    Application Type Bond, Seal
    1 Part or 2 Part 1 Part
    Material Form Paste, Silicone elastomer
    Substrate Painted aluminum, Coated glass, Anodized, Polyester coated, Enameled glass, Metal, Glass, Reflective glass
    Manufacturer Dow
    Chemistry Silicone elastomer
    Cure Method Moisture
    Cure Temperature (°C) 25
    Cure Time (min) 10,080 to 20,160, 20,160 to 30,240
    Viscosity (cPs) Sag, Slump
    Color Black, Gray, White
    Ozone Resistance Ozone resistance
    Durability Tough
    Elastomeric Elastomeric
    Key Specifications ASTM (American Standard Test Method): ASTM Specification C-920 Type S, Grade NS, Class 50, Use NT, G and A; ASTM C1184, ASTM (American Standard Test Method): C 920: ASTM Specification C-920 Type S, Grade NS, Class 50, Use NT, G and A; ASTM C1184, TT (U.S. Federal Specification): S-001543A: TT-S-001543A (COM-NBS) Class A; TT-S-00230C (COM-NBS) Class A, TT (U.S. Federal Specification): S-00230C: TT-S-001543A (COM-NBS) Class A; TT-S-00230C (COM-NBS) Class A
  • Technical Data for Dow 995 Silicone Structural Glazing Sealant

    Overview
    • Application Type
    • 1 Part or 2 Part
      • 1 Part or 2 Part - 1 Part
    • Material Form
      • Elastomer - Silicone elastomer
      • Paste
    • Substrate
    • Chemistry
    • Application Method
      • Dispenser - Many types of air-operated guns, Most types of bulk dispensing equipment
    • Cure Method
      • Moisture / Condensation Cure - Moisture
    • Color
      • Black
      • Gray
      • White
    • Key Specifications
      • ASTM (American Standard Test Method): C1184 - ASTM Specification C-920 Type S, Grade NS, Class 50, Use NT, G and A; ASTM C1184
      • ASTM (American Standard Test Method): C 920: Class 50 - ASTM Specification C-920 Type S, Grade NS, Class 50, Use NT, G and A; ASTM C1184
      • TT (U.S. Federal Specification): S-001543A: Class A - TT-S-001543A (COM-NBS) Class A; TT-S-00230C (COM-NBS) Class A
      • TT (U.S. Federal Specification): S-00230C: Class A - TT-S-001543A (COM-NBS) Class A; TT-S-00230C (COM-NBS) Class A
    Specifications
    Cure Specs
    Cure Temperature (°C) 25 Test Method
    Cure Time (min) 10,080 to 20,160, 20,160 to 30,240 Test Method
    Viscosity (cPs) Sag, Slump
    Tack Free Time (min) 65 Test Method
    Work / Pot Time (min) 10 to 20
    Bond Strength
    Peel Strength (piw) 40 (ppi) Test Method
    Tear Strength (piw) 49 (ppi) Test Method
    Tensile Strength (psi) High, 350 Test Method
    Material Resistance
    Ozone Resistance Ozone resistance
    UV Resistance High
    Moisture/Humidity Resistance High
    Hardness
    Durability Tough
    Shore A Hardness 40 Test Method
    Elastomeric Elastomeric
    Elongation (%) 5 Test Method
    Flexibility Flexible
    Other Properties
    Specific Gravity 1.339
    Business Information
    Shelf Life Details When stored at or below 30ºC (86ºF) in the original unopened containers, this product has a usable life of 18 months from the date of manufacture.
    Shelf Life Type From date of manufacture
    Shelf Life (mon) 18
    Not Good For
    Don't Use With Building materialsthat bleed oils, Plasticizers, Solvents –materials such as impregnated wood, oil-based caulks, Green or partially vulcanized rubber gaskets or tapes
  • Best Practices for Dow 995 Silicone Structural Glazing Sealant

    *See Terms of Use Below

    1. Surface Preparation

      Clean all joints and glazing pockets, removing all foreign matter and contaminants such as grease, oil, dust, water, frost, surface dirt, old sealants, or glazing compounds and protective coatings.

    2. Application

      Install back-up material or joint filler, setting blocks, spacer shims and tapes. Mask areas adjacent to joints to ensure neat sealant lines. Primer is generally not required on non-porous surfaces, but may be necessary for optimal sealing of certain porous surfaces. A test placement is always recommended.

      Apply Dow Corning 995 Silicone Structural Glazing Sealant in a continuous operation using a positive pressure. (The sealant can be applied using many types of air-operated guns and most types of bulk dispensing equipment). Before a skin forms (typically within 10 minutes), tool the sealant with light pressure to spread the sealant against the backing material and joint surfaces. Remove masking tape as soon as the bead is tooled.

  • Comparable Materials for Dow 995 Silicone Structural Glazing Sealant

    *See Terms of Use Below

    Spec Engine® Results

Questions about this material?

Get personal assistance with your specific application needs.

Your Profile Edit
  1. c8872510-6ad6-472a-9561-5259077c9f1f
  2. c8872510-6ad6-472a-9561-5259077c9f1f

Popular Articles

Silicones in LED Lighting | Gluespec

Read Article

What Are the Differences Between Adhesives and Sealants?

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
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

What level of expertise do you have in specialty chemicals like adhesives, sealants, conformal coatings, etc.?
Cure Temperature Test Methods
Cure Temperature Cure Time Test Method
25°C 25ºC 77ºF at 50% RH, MIL-S-8802
Cure Time Test Methods
Cure Time Test Method
10,080 to 20,160 min 25ºC 77ºF at 50% RH, MIL-S-8802
20,160 to 30,240 min Full Adhesion, MIL-S-8802
Tack Free Time Test Methods
Tack Free Time Test Method
65 min MIL-S-8802, 50% RH
Tensile Strength Test Methods
Tensile Strength Cure Time Cure Temperature Cure Humidity Test Method
High
350 psi 10,080 min 25°C 50 % ASTM D0412
Peel Strength Test Methods
Peel Strength Cure Time Cure Temperature Cure Humidity Test Method
40 (ppi) 10,080 min 25°C 50 % ASTM C0794
Tear Strength Test Methods
Tear Strength Cure Time Cure Temperature Cure Humidity Test Method
49 (ppi) 10,080 min 25°C 50 % ASTM D0624, Die B
Elongation Test Methods
Elongation Test Method
5 % After 7 days at 25ºC (77ºF), 50% RH, Ultimate Elongation
Shore A Hardness Test Methods
Shore A Hardness Shore Hardness Test Method Hardness Temperature
40 ASTM D2240, After 7 days at 25ºC (77ºF), 50% RH 25°C