DOWSIL™ 7091 Adhesive Sealant

Designed for applications which demand a strong but flexible bond, such as when bonding materials with differing thermal expansion rates, e.g. glass to metal or glass to plastic.

Unprimed adhesion to commonly used materials including enameled and painted steel, aluminum, ceramic and glass as well as to certain plastics used in engineering applications.

Used as a Formed-in-Place Gasket (FIPG) material.

FEATURES AND BENEFITS

• One-component adhesive/sealant

• Cures at room temperature when exposed to moisture in the air

• Alkoxy cure system

• Non-sag, paste consistency

• Easy to apply 3

• Cures to a tough, flexible rubber

• Excellent adhesion to many substrates

• Stable and flexible from -40°C (-40°F) to 180°C (356°F)

INSTRUCTIONS FOR USE

Substrate Preparation

All surfaces must be clean and dry. Degrease and wash off any contaminants that could impair adhesion. Suitable solvents include isopropyl alcohol, acetone or methyl ethyl ketone.

Good unprimed adhesion may be obtained on a variety of substrates, including enameled and painted steel, aluminum, ceramic, glass and certain plastics. Substrates to which good adhesion is normally not obtained include PTFE, polyethylene, polypropylene and related materials.

For maximum adhesion, the use of DOWSIL™ 1200 OS Primer is recommended. After solvent cleaning apply a thin coat of DOWSIL™ 1200 OS Primer by dipping, brushing or spraying. Allow primer to dry for 15 to 90 minutes at room temperature and a relative humidity of 50% or higher. 

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