DOWSIL SE 9168 RTV Silicone Adhesive for PCB Component Fixing and Vibration Dampening

DOWSIL SE 9168 RTV Silicone Adhesive for Electronics

This ready-to-use RTV adhesive cures at room temperature after exposure to moisture in the air, eliminating the need for component mixing or dedicated curing ovens. The product develops a tack-free surface in approximately 6.5 minutes at 50% relative humidity under specified test conditions. This rapid surface cure helps manufacturers maintain cleaner assemblies and move bonded components through subsequent production stages more efficiently.

The grey silicone has a typical specific gravity of 1.32 at 25°C. After curing, it forms a flexible elastomer with a typical Shore A hardness of 44, elongation of approximately 363%, and tensile strength of about 535 psi. These mechanical properties allow the adhesive to secure components while absorbing vibration, thermal movement, and mechanical stress that could otherwise damage solder joints, connectors, or delicate electronic parts.

PCB and Electronic Module Applications

DOWSIL SE 9168 RTV Silicone Adhesive is primarily designed for fixing parts on circuit boards and inside electronic modules. Typical applications include securing capacitors, connectors, coils, transformers, sensors, wires, power-supply components, and other parts that may be exposed to vibration or movement during transportation and operation.

The non-flowing formulation is particularly useful for vertical surfaces, component edges, localized reinforcement, and controlled bead application. It can support manufacturing of power modules, industrial controls, communication equipment, automotive electronics, appliances, lighting systems, and other electronic assemblies requiring flexible component support.

7 Key Benefits for Electronics Manufacturing

• One-component convenience: No weighing, measuring, or mixing is required before dispensing.
• Fast tack-free performance: Supports shorter handling and production cycles.
• Non-flowing consistency: Maintains accurate placement on vertical and complex assemblies.
• Controlled volatility: Helps reduce the potential impact of silicone volatiles on nearby components.
• Flexible vibration protection: Helps absorb movement and reduce stress on fixed parts.
• Room-temperature curing: Eliminates the need for ovens in standard moisture-curing applications.
• UL-recognized performance: Offers a UL 94 V-0 flammability rating for applicable designs.

Application and Curing Guidance

Ensure all bonding surfaces are clean, dry, and free from oil, grease, dust, moisture, flux residue, and release agents. Dispense the required amount directly around or beneath the component, then position the part before surface curing begins. Because atmospheric moisture initiates curing, thick sections and enclosed areas may require more time than thin, openly exposed beads.

Manufacturers should validate bead dimensions, component spacing, adhesion, cure conditions, vibration resistance, and electrical compatibility using representative production parts. Actual performance may vary according to substrate type, surface preparation, temperature, humidity, adhesive thickness, and assembly geometry.

Official Resources and Related Silicone Products

Review the official DOWSIL SE 9168 RTV product page for current technical properties, certifications, and product information. Buyers can also explore the official Dow electronics adhesives and sealants portfolio for related electronic protection materials.

Explore our electronic silicone adhesives for additional component-fixing and flexible sealing solutions. You can also browse our PCB protection materials for conformal coatings, encapsulants, potting compounds, and circuit-board protection products. Contact our sales team for quotations, package availability, technical documentation, export support, and product application assistance.