DOWSIL 688

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

Recommended Uses

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; 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