DOWSIL™ 7091: A Versatile Adhesive/Sealant for Professionals
Manufactured by Dow, DOWSIL™ 7091 is designed to deliver superior performance in various industrial environments. Its one-component, neutral-curing formula allows for easy application and quick curing at room temperature. Here are the key features that make this product an indispensable solution:
Key Features
• Neutral Alkoxy Silicone – Odorless Formula:
DOWSIL™ 7091 stands out with its neutral alkoxy silicone formula, which releases methanol instead of acetic acid.
This eliminates the strong vinegar odor and corrosion issues commonly associated with acetic silicones. It is particularly suitable for use near electronic circuits and corrosion-sensitive metals such as raw steel, aluminum, and copper.
• Room Temperature Curing:
The product cures upon exposure to moisture in the ambient air, allowing for easy on-site application.
• Paste-Like Consistency:
Its non-sagging texture ensures precise and controlled application, even on vertical or complex surfaces.
• Flexibility and Durability:
Once cured, DOWSIL™ 7091 forms a flexible, durable rubber that adheres exceptionally well to various materials, including aluminum, glass, ceramics, steel, and some plastics.
• Wide Temperature Range:
The product remains stable and flexible under extreme temperature variations, from -40°C to 180°C, ensuring consistent performance in challenging environmental conditions.
Technical Performance
DOWSIL™ 7091’s mechanical properties make it a reliable solution for demanding assembly and bonding applications:
- Elongation at Break: 680%
- This high elongation rate ensures the product can withstand significant deformation while maintaining structural integrity.
- Tensile Strength: 2.5 MPa
- Ensures long-lasting and strong adhesion, even in extreme conditions.
- Shore A Hardness: 37
- Balances flexibility with sufficient hardness for robust performance.
These technical attributes provide excellent resistance to thermal shocks when bonding materials with different thermal expansion properties, such as metal and plastic.
Main Application Areas of DOWSIL™ 7091
The product’s versatile nature makes it ideal for various industrial sectors. It is particularly effective in the following applications:
• Bonding Materials with Different Thermal Expansion Rates:
Ensures secure adhesion of materials like glass, metal, and plastic, minimizing separation risks caused by temperature fluctuations.
• Formed-In-Place Gaskets (FIPG):
Used in automotive assembly lines for on-site gasket formation, providing optimal sealing and flexibility.
• Sealing in Engine Systems:
Its high-temperature resistance makes it suitable for sealing and bonding applications in engines and other demanding industrial equipment.
• Variety of Colors Available:
DOWSIL™ 7091 is offered in multiple colors, allowing for aesthetic and application-specific compatibility.
Advantages for Users
Beyond its technical strengths, DOWSIL™ 7091 offers several practical benefits for professionals:
- Wide Surface Adhesion:
- Ensures reliable and long-lasting bonding on metal, ceramic, and some plastic surfaces.
- Fast Curing:
- Forms a surface skin within 10-15 minutes and loses tackiness within 30 minutes, making it ideal for high-speed production environments.
- Compliance with Railway Standards:
- Meets EN 45545-2, HL1(R22) standards, ensuring maximum safety and fire protection in railway applications.
Industries Using DOWSIL™ 7091
DOWSIL™ 7091 is widely used across various sectors, including:
- Automotive:
- Ideal for formed-in-place gaskets and high-temperature, chemical-resistant applications.
- Railway:
- Ensures fire safety compliance, playing a crucial role in rail transport applications.
- Marine:
- Used for window and porthole sealing, deck equipment installation, and engine compartment sealing.
- General Industry:
- Provides ideal bonding solutions for complex industrial environments and diverse material combinations.
- Electronics:
- Ensures secure adhesion and long-term sealing in electronic component applications.
- Home Appliances:
- Used in oven, stove, and range hood manufacturing, providing reliable bonding of glass, metal, and plastic components.
DOWSIL™ 7091’s unique combination of flexibility, durability, and high-performance adhesion makes it a trusted choice for professionals across multiple industries.