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3621 Surface Mount Adhesives

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MOQ : 100 Units

3621 Surface Mount Adhesives Specification

Storage Temperature
2.0 C - 8.0 C

Surface Of Application
Electronics, steel, PCB

Form
Gel

Usage
Surface mounting for electronics

Grade
Industrial

Application
Electronics assembly

Physical State
Gel

Number of Components
1 part

Viscosity Range
0.5 - 3.0 Pas

CTE Above Tg
100.0 ppm/C

Cure Schedule (150C)
90 - 120 seconds

Shear Strength
2175 psi

Yield Point
130-280 Pas

Technologies
Thermosets

Cure Type
Heat cure

Assembly Material
Electronics

3621 Surface Mount Adhesives Trade Information

Minimum Order Quantity
100 Units

Payment Terms
Cash in Advance (CID)

Supply Ability
5000 Units Per Month

Delivery Time
7 Days

Main Domestic Market
All India

About 3621 Surface Mount Adhesives

LOCTITE® 3621 is a surface-mount adhesive specially designed for bonding surface-mounted devices to printed circuit boards prior to wave soldering, and is ideal for applications where very high dispense speeds (greater than 35,000 dots/h), high dot profile, high wet strength, and good electrical characteristics are required.

1-part: no mixing required
Very high dispense speed
High wet strength
Electrically non-conductive

Secure Electronics Bonding

The 3621 Surface Mount Adhesive delivers robust bonding for PCBs, steel, and electronics, ideal for industrial assembly tasks. Its high yield point and cured strength maintain electronic reliability, even under thermal and mechanical stress. Heat curing produces a durable, thermoset bond essential for advanced assemblies.

Optimized Processing and Handling

This gel adhesive is convenient and easy to use, requiring no mixing due to its single-part formulation. Its viscosity allows precise placement during assembly. The recommended storage temperature of 2-8C extends shelf life and ensures consistent physical properties throughout usage.

Superior Performance in Demanding Applications

Engineered for electronics, the 3621 adhesive withstands high temperatures and mechanical loads. Its shear strength and thermal expansion control make it perfect for mounting components where reliability is critical, supporting manufacturers and service providers focused on quality and durability.

FAQ's of 3621 Surface Mount Adhesives:

Q: How should the 3621 Surface Mount Adhesive be applied during electronics assembly?

A: Simply dispense the adhesive gel directly onto the cleaned bonding surfaces, such as PCBs or steel. Ensure even coverage before placing the components. Heat cure at 150C for 90-120 seconds to complete the bonding process.

Q: What are the primary benefits of using this adhesive for electronics assembly?

A: The 3621 adhesive offers strong shear strength of 2175 psi and excellent thermal stability, ensuring robust attachment of surface-mounted components. Its gel form allows precise application, while the single-part design simplifies processing for both small- and large-scale manufacturing.

Q: When is the optimal time to use the 3621 adhesive in assembly?

A: Use this adhesive when rapid, reliable surface mounting of electronics is required, particularly for industrial or high-performance PCB and steel assemblies where heat cure and high shear strength are advantageous.

Q: Where can 3621 Surface Mount Adhesive be effectively applied?

A: It is suitable for electronics, steel components, and PCBs in the assembly of electronic devices. The adhesive is compatible with industrial applications in factories, workshops, and service centers across India.

Q: What is the curing process for this adhesive?

A: After application, cure the adhesive by heating at 150C for 90-120 seconds. This thermal curing converts the gel into a solid, durable thermoset bond, capable of withstanding mechanical and thermal stresses.

Q: How should 3621 adhesive be stored for optimal performance?

A: Keep the adhesive at a storage temperature between 2C and 8C. This maintains its gel consistency and quality, ensuring it remains ready for use without degradation.

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