Franchises Aavailable
Find out more

1300 2 TURBO

Building Supplies

BUILDING SUPPLIES

Dow Corning DowSil 688 Silicone

Product Information

One-part neutral cure silicone sealant designed for a wide range of glazing, weather sealing and professional caulking applications. It will bond to form a strong weatherproof seal on most common building materials.

Features & Benefits

  • Adheres to a wide range of building materials and finishes
  • Neutral cure; will not corrode galvanized/zinc-coated steel or attack concrete
  • Excellent resistance to weathering, ultra-violet radiation, vibration, moisture, ozone, temperature extremes, airborne pollutants, cleaning detergents and many solvents
  • Long life reliability
  • Meets International Standards such as CNS 8903, BS 5889, BS EN ISO11600 20LM
  • Strong elastic seal capable of withstanding movements up to ± 25% of original joint width
  • Non-slumping; can be used in vertical and overhead joints
  • Easy to use – one part, no mixing required
  • Can be applied in any season
  • Good weatherability – it is virtually unaffected by sunlight, rain, snow, ozone or temperature extremes
  • Easy to use
  • Bonds to most common construction materials without use of primer
  • Excellent recovery from extension and compression
  • Ease of application – ready to use as supplied

Applications

DOWSIL™ 688 Glazing and Cladding Sealant is a one-part neutral cure silicone sealant
designed for a wide range of glazing, weather sealing and professional caulking
applications. It will bond to form a strong weatherproof seal on most common building
materials.

Specifications
As Supplied – tested at 25°C, 50% relative humidity
  • Flow, Sag or Slump Nil
  • Approximate Working Time2
  • Approximate Working Time2 Minutes 10
  • Tack Free Time: 30 Minutes
  • Specific Gravity: 1.4
  • Durometer Hardness, Shore A: 32
  • Ultimate Tensile Strength: 1.1MPa
  • Ultimate Elongation at Break: 400%
  • Temperature Stability: -20°C to 120°C
Material Data Sheet Material Safety Data Sheet Get A Quote