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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