DOWSIL™ 688 Glazing and Cladding Sealant

DOWSIL™ 688 Silicone is a 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. \n

Characteristics

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