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DOWSIL™ 7091 Adhesive Sealant

DOWSIL™ 7091 Adhesive Sealant is a one‑part, moisture‑curing silicone adhesive sealant engineered for applications such as formed‑in‑place gaskets in automotive and electronic assemblies.

Available Sizes: 5‑oz tubes, 13.5‑oz cartridges, and 20‑lb pails.

Shelf Life: Approximately 12 months (1 year) from the date of manufacture.

DOWSIL™ 7091 Adhesive Sealant is a high-performance, one-part silicone adhesive/sealant that cures at room temperature upon exposure to moisture, forming a tough and flexible rubber. It utilizes an alkoxy cure system and exhibits non-sag, paste-like consistency, making it easy to apply. This sealant offers excellent adhesion to a variety of substrates and remains stable and flexible over a wide temperature range.

Applications:

  • Ideal for bonding materials with differing thermal expansion rates, such as glass to metal or glass to plastic.

  • Provides unprimed adhesion to commonly used materials, including enameled and painted steel, aluminum, ceramic, glass, and certain engineering plastics.

  • Suitable for use as a Formed-in-Place Gasket (FIPG) material.

Typical Properties:

Property Unit Value
Appearance Non-slump paste
Colors Black, white, gray
Extrusion Rate g/minute 185
Skin-Over Time minutes 15
Tack-Free Time minutes 28
Durometer Hardness (Shore A) 32
Tensile Strength MPa 2.5
Elongation at Break % 680
Tear Strength (Die B) kN/m 15
Specific Gravity at 22°C (72°F) 1.4

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