DOWSIL

DOWSIL™ 3165 Fast Tack RTV Adhesive Sealant Gray 305 ML | Official Distributor

Request a Quote

Technical Product Information

DOWSIL™ 3165 Fast Tack RTV Adhesive Sealant Gray 305 ML

Product Overview

DOWSIL™ 3165 Fast Tack RTV Adhesive Sealant Gray is a one-part, fast room-temperature moisture-curing (RTV), non-corrosive alkoxy silicone adhesive/sealant engineered for bonding, fixing, sealing, and component staking in electrical and electronic assemblies. It features an exceptionally fast tack-free time that enables rapid green-strength development and shortens cycle times on automated assembly lines. Formulated to meet UL 94 V-0 flame-retardant standards, it ensures high operational safety for critical electronic modules. The standard 305 ml cartridge provides convenience for manual caulking guns and automated robotic dispensing systems.

Key Features and Benefits

• Fast Tack-Free Curing: Rapid skin-over time minimizes handling times and increases throughput in high-volume production.
• UL 94 V-0 Flame Retardancy: Certified flame resistance provides maximum safety for high-voltage power components.
• Non-Corrosive Alkoxy Cure: Neutral RTV moisture-cure system releases no corrosive byproducts, protecting sensitive circuit traces.
• Primerless Structural Adhesion: Forms a durable, high-strength bond to metals, ceramics, glass, and engineering plastics without primers.
• Non-Slump Thixotropic Paste: Resists sag and run on vertical or overhead bonding applications prior to cure.
• Broad Thermal Stability: Maintains flexibility and electrical insulation across extreme operating temperatures from -45°C to +180°C (-49°F to +356°F).

Technical Specifications

• Appearance / Color: Gray
• Packaging / Volume: Cartridge / 305 ML
• Chemical Base: One-Part Silicone Elastomer (RTV Alkoxy Cure)
• Flame Rating: UL 94 V-0 certified
• Tack-Free Time: ~5 - 10 minutes
• Specific Gravity (@ 25°C): ~1.35 g/cm³
• Service Temperature Range: -45°C to +180°C (-49°F to +356°F)

Applications

• Component staking and vibration damping for power supplies, transformers, capacitors, and heavy PCB components.
• Sealing and bonding in automotive electronics, control units, relays, and connectors.
• Flame-retardant sealing (UL 94 V-0) in home appliances, LED drivers, and industrial electronic control modules.
• General electronic sealing and adhesive bonding applications requiring fast green-strength development.

Usage Note: Ensure all bonding surfaces are clean, dry, and free of oil or contaminants before application. As a moisture-curing material, keep container tightly sealed when not in use. Compatible with standard 305 ml caulking guns and automated dispensing equipment.