DOWSIL™ 739 Plastic Adhesive - Non-Flowing, UL 94 HB Rated RTV Sealant

DOWSIL™ 739 Plastic Adhesive - High-Performance Non-Flowing RTV Adhesive

DOWSIL™ 739 Plastic Adhesive is a one-part, moisture-curing RTV silicone adhesive designed for general-purpose bonding and sealing applications. Featuring excellent adhesion to plastics and metals, this product is non-flowing, UL 94 HB rated for flame resistance, and cures at room temperature for ease of use.

Key Features and Benefits

• Non-Flowing: Stays in place for precise application, even on vertical surfaces.
• Room Temperature Cure: No need for ovens, with optional heat acceleration for faster processing.
• High Elongation: Provides stress relief to bonded components, enhancing durability.
• Flame Resistance: UL 94 HB rated for added reliability in demanding environments.
• Primerless Adhesion: Adheres well to plastics, metals, and glass without the need for primers.
• Easy to Use: One-part, no mixing required, ready to use straight out of the cartridge.

Applications

• Bonding & Sealing: Ideal for wedge bonding, power supply module assembly, and general-purpose sealing.
• Plastic and Metal Bonding: Adheres effectively to ABS, aluminum, glass, and more.
• Industrial Components: Suitable for housings, assemblies, and battery packs.

Detailed Description

DOWSIL™ 739 Plastic Adhesive is specially formulated for bonding and sealing applications requiring a non-flowing adhesive with excellent adhesion and flame resistance. This one-part silicone adhesive cures at room temperature, eliminating the need for ovens or special curing conditions. It offers outstanding elongation, providing stress relief to ensure durability even under challenging environmental conditions.

The adhesive adheres well to various substrates, including plastics, metals, and glass, making it versatile for multiple industrial applications. Its UL 94 HB flammability rating adds reliability for sensitive projects, and the alkoxy cure system ensures low odor during application.

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Technical Specifications

• Color Options: Black, White
• Cure Type: Alkoxy Cure
• Tack-Free Time: >10 minutes
• Cure Time: 24 to 72 hours at room temperature
• Adhesion to: ABS, Aluminum, Copper, Glass, Nylon, Steel (Galvanized, Low Carbon, Stainless)
• Flammability: UL 94 HB rated
• Temperature Range: -76°F to 350°F (-60°C to 177°C)

Available Sizes and Part Numbers

Why Choose DOWSIL™ 739 Plastic Adhesive?

• Certified for UL 94 HB flame resistance for added safety.
• Bonds securely to plastics, metals, and glass.
• Reduces cured stress with high elongation properties.
• Reliable for both industrial and general-purpose applications.