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LOCTITE® UK U-09FL – Polyurethane Adhesive – Clear Flexible Bonding for Plastics, Glass, and Metal Assemblies

Item Name: LOCTITE® UK U-09FL
Manufacturer: Henkel
Technologies: Polyurethane
Color: Ultra clear (Component A – Clear, Component B – Clear)
Cure Type: Room temperature cure (two-component reaction)
Package Size: Contact to Techniq VN for details.
Shelf Life: Contact to Techniq VN for details.

1. Product Overview
LOCTITE® UK U-09FL is a two-component polyurethane adhesive with low viscosity and thixotropic behavior. It cures at room temperature to form an ultra-clear, flexible bond line with excellent peel strength. The product offers a balanced 1:1 mixing ratio by volume (100:91 by weight), making it suitable for precise applications. Designed for industrial-grade bonding, it ensures non-yellowing performance, maintaining clarity over time.

2. Applications
This adhesive is ideal for bonding polycarbonate and other plastics, as well as glass and metals. It is particularly useful in applications requiring transparent, durable, and flexible bonds. Typical industries include electronics, optics, and general manufacturing where a clear bond line is essential.

3. Typical Properties

Property Component A (Unmixed) Component B (Unmixed) Mixed (A+B) / Cured Material
Appearance Clear liquid Clear liquid Ultra-clear bond line
Viscosity @25°C (mPa·s) 5,000–15,000 600–2,000 Low, thixotropic
Specific Gravity @25°C 1.0–1.2 0.95–1.15 1.0–1.2
Mix Ratio (by volume) 1:1 (100:91 by weight)
Working Life @25°C ~10 min
Tack Free Time @25°C 3–24 h
Tensile Strength (psi) 2,761
Elongation (%) 178
Hardness (Shore D) 45
Glass Transition Temp (°C) 25.8
Dielectric Strength (V/mil) 841

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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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