Loctite 315 Thermally Conductive Adhesive Syringe 25ml

LOCTITE 315 (25ml Syringe) is a highly viscous, self-shimming blue modified acrylic structural adhesive paste engineered for maximum efficacy in thermal management assemblies. This industrial-grade adhesive permanently bonds components to heat sinks, preventing costly overheating and component failure caused by poor heat dissipation and thermal stress. Whether you are securing transformers or assembling transistors, this premium adhesive paste provides a robust, thermally conductive connection on all heat-generating components—including printed circuit board assemblies and metal heat sinks.

Why Choose LOCTITE 315 High Thermal Conductivity?

• Excellent Heat Dissipation: High thermal conductivity provides exceptional heat dissipation for highly sensitive electronic components.
• Self-Shimming Consistency: Produces a reliable, consistent 0.15 mm (5–6 mil) gap between the component and the heat sink to ensure proper alignment.
• Electrical Insulation: The controlled shimming gap creates dependable electrical insulation while maintaining optimal thermal transfer.
• Eliminates Fasteners: Provides strong structural joints that completely eliminate the need for mechanical fasteners or clips.
• Controlled Strength Serviceability: Engineered with controlled structural strength to easily permit clean field and service repairs.

Technical Specifications

• Product Type: 1-part Modified Acrylic Adhesive (Requires Activator)
• Strength: Controlled Strength (13 N/mm² Steel Shear Strength)
• Color: Blue
• Container Size: 25ml Syringe
• Certifications: Henkel LMS Quality Specification (Dated December 10, 2001)

Simple Application Instructions

1. Clean: For best performance, ensure all bond surfaces are completely clean and free from grease or old thermal compounds.
2. Apply: Use an applicator to apply Activator 7387 to one of the surfaces to be bonded. Once the solvent evaporates, apply the LOCTITE 315 adhesive paste directly to the unactivated surface. Minimize air entrapment during dispensing.
3. Assemble: Secure the assembly within the activator's 2-hour open time windows. Wait approximately 5 minutes for the adhesive to fixture before handling. Full cure will occur within 4 to 24 hours at room temperature.

Frequently Asked Questions (FAQ)

What is LOCTITE 315 used for?

LOCTITE 315 is a controlled-strength thermally conductive adhesive designed for structural electronic bonding. It is specifically formulated to prevent thermally sensitive components—such as transformers, transistors, and other heat-generating devices—from failing due to extreme operational heat and thermal cycling stress.

Can LOCTITE 315 be disassembled?

Yes. It features controlled bond strength specifically engineered to permit field and service repair without damaging delicate components or circuit boards.

Does LOCTITE 315 work on electronic components?

Yes. LOCTITE 315 offers robust performance across a variety of electronic assemblies. It is highly effective on both printed circuit board assemblies as well as metallic heat sinks or component backings, passing extensive 1,000-hour thermal cycling tests (15°C to 100°C) without losing strength.

Is LOCTITE 315 safe for high-voltage environments?

LOCTITE 315 provides robust electrical insulation due to its self-shimming gap properties. However, in high-pot (high potential) electrical applications, its use should be strictly limited to a maximum of 500 volts.