DOWSIL™ 795 Silicone Building Sealant is a one-part, neutral-cure, medium-modulus silicone sealant designed for structural glazing and weatherproofing applications. It offers excellent adhesion to a variety of building materials and is suitable for both new construction and remedial projects.
Product Overview
Cure System : Neutral-cure RTV silicone
Cure Time : Tack-free in approximately 1.5 hours; full cure in 7 to 14 days, depending on joint thickness and environmental conditions
Movement Capability : ±50% joint movement as per ASTM C719
Operating Temperature : -40°F to +300°F (-40°C to +149°C)
Colors Available : Available in 15 standard colors, including white, limestone, champagne, natural stone, gray, black, bronze, sandstone, adobe tan, dusty rose, rustic brick, blue spruce, anodized aluminum, and charcoal. Custom colors are also available.
Packaging Options : Available in 10.3 fl. oz. cartridges and 20 fl. oz. sausages
Certifications : Complies with ASTM C920 Type S, Grade NS, Class 50; ASTM C1184 for structural silicone sealants; Federal Specifications TT-S-001543A and TT-S-00230C
Key Features
Versatility : Suitable for both structural glazing and weather sealing applications
Excellent Weatherability : Unaffected by sunlight, rain, snow, ozone, and temperature extremes
Strong Adhesion : Bonds well without primer to a variety of substrates, including glass, aluminum, steel, painted metal, EIFS, granite, stone, concrete, brick, and plastics
Ease of Application : Ready to use as supplied; non-sagging, easy to tool, and low odor
Durability : Cures to a strong yet flexible silicone rubber joint seal that accommodates significant joint movement
Applications
Structural Glazing : Bonding glass and other panel materials in structural glazing systems
Weather Sealing : Sealing joints in curtain walls, building facades, and other exterior applications
Panel Attachment : Structural attachment of many panel systems and panel stiffener applications
Expansion Joints : Sealing expansion joints in various construction materials
Limitations
Not recommended for below-grade applications or surfaces that are continuously immersed in water
Should not be applied on surfaces that bleed oils, plasticizers, or solvents
Not intended for use on frost-laden or wet surfaces
Paint does not typically adhere to silicone sealants; therefore, DOWSIL™ 795 should not be painted
Safety & Handling
Safety Summary
According to the Safety Data Sheet:
Not classified as hazardous, but standard precautions apply
Use only outdoors or in well-ventilated areas; avoid breathing vapors or contact with skin/eyes
Wear gloves, protective clothing, and eye/face protection when handling uncured material
First Aid Measures
Inhalation: Move to fresh air and consult a physician if symptoms develop.
Skin contact: Wash thoroughly with soap and water.
Eye contact: Flush with water for several minutes; consult an ophthalmologist if irritation persists.
Ingestion: Do not induce vomiting; seek immediate medical attention
Storage & Disposal
Store in sealed containers sheltered from heat and direct sunlight, ideally below ~35 °C
Dispose of in accordance with local regulations. Do not release uncured sealant into drains or environment
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