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LOCTITE® 4314™ – Adhesive – Bonding

Item Name: LOCTITE® 4314™
Manufacturer: Henkel
Technologies: Cyanoacrylate (Ethyl cyanoacrylate with photoinitiator)
Color: Transparent Light Yellow Green to Dark Blue Green Liquid
Cure Type: Ultraviolet (UV) / Visible light; Secondary Cure: Humidity
Package Size: Contact to Techniq VN for details.
Shelf Life: Contact to Techniq VN for details.

1. Product Overview

LOCTITE® 4314™ is a low-viscosity, UV/visible light-curing cyanoacrylate adhesive with a secondary humidity cure. It offers rapid fixturing, surface curing, and flexibility, making it suitable for medical devices (ISO 10993 compliant). It bonds plastics, rubbers, TPEs, and metals efficiently.

2. Applications

  • Bonding flexible medical devices (catheters, tube sets)
  • Surface cure applications to reduce blooming
  • Bonding plastics, rubbers, TPEs, and metals
  • Rapid curing of exposed surface areas

3. Typical Properties

Property Value
Uncured Properties
Appearance Transparent Light Yellow Green to Dark Blue Green Liquid
Viscosity (mPa·s) 100 – 250
Specific Gravity @ 25°C 1.07
Stress Cracking Resistance >1,440 min (6.9 N/mm² stress)
Curing Properties Value
Tack-Free Time (UV, 365nm, 30mW/cm²) ≤10 sec
Tack-Free Time (UV, 365nm, 1,000mW/cm²) ≤1 sec
Fixture Time on Aluminum 60 – 120 sec
Fixture Time on Polycarbonate 10 – 20 sec
Fixture Time on Mild Steel 300 – 360 sec
Cured Properties Value
Glass Transition Temperature (Tg) 70°C
Shore Hardness (D) 74
Elongation at Break 17%
Tensile Strength 25 N/mm² (3,600 psi)
Dielectric Breakdown Strength 35 kV/mm
Adhesive Strength (Block Shear, ISO 13445) Value
Polycarbonate to Polycarbonate 22 N/mm² (2,050 psi)
Acrylic to Acrylic 7.3 N/mm² (1,060 psi)
Polycarbonate to Steel 4 N/mm² (580 psi)
HDPE (with Primer SF 7701) 0.9 N/mm² (130 psi)
LDPE (with Primer SF 7701) 2.8 N/mm² (410 psi)
Environmental Resistance % Strength Retention
1000h in 22°C Water 114%
1000h in 90% RH @ 40°C 156%
1000h in Heptane 132%
1000h in IPA 159%

BERGQUIST microTIM mTIM 1028 Thermal Interface Coating High performance thermal management solution for nickel finished heat sinks, optical transceivers, and data center liquid cooling systems

BERGQUIST microTIM mTIM 1028 is purpose built for riding cage assemblies in servers, switches, and routers, interfacing with electroless nickel plated copper or aluminum heat sinks. It ensures stable operation in high power transceiver modules while also extending applicability to liquid cooling components, heat pipes, and fin based dissipative structures.

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