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Dymax OP-4-20632 optical adhesive for precision lens bonding and durable photonic component assembly

  • Item Name: Dymax OP-4-20632

  • Manufacturer: Dymax Corporation

  • Technologies: UV/Visible light-curable, optically clear adhesive with excellent adhesion to glass and plastics

  • Color: Clear

  • Cure Type: UV/Visible light cure

  • Package Size: Contact to Techniq VN for details.

  • Shelf Life: Contact to Techniq VN for details.

1. Product Overview

Dymax Ultra Light-Weld® OP-4-20632 is a high glass transition temperature (Tg) optical adhesive engineered for fiber optic and optical component assemblies. It is a one-component, solvent-free material that cures rapidly under UV/Visible light, ensuring minimal shrinkage and strong adhesion to both glass and metals. Its optically clear formulation and low viscosity make it particularly suitable for high-precision optical bonding applications. The adhesive complies fully with RoHS Directives 2002/95/EC and 2003/11/EC.


2. Applications

The adhesive is developed for use in advanced optical assemblies, specifically where transparency and dimensional stability are critical. Applications include:

  • Fiber optic coupling assembly

  • Prism bonding

  • Optical component assembly

3. Typical Properties

Category Property Value Test Method
Uncured Solvent Content No Nonreactive Solvents N/A
Chemical Class Acrylated Urethane N/A
Appearance Clear Liquid N/A
Soluble in Organic Solvents Yes N/A
Density (g/ml) 1.14 ASTM D1875
Viscosity (cP, 20 rpm) 480 (nominal) ASTM D1084
Cured Mechanical Durometer Hardness D80 ASTM D2240
Tensile Strength (MPa [psi]) 43 [6,200] ASTM D638
Elongation at Break (%) 3 ASTM D638
Modulus of Elasticity (MPa [psi]) 923 [134,000] ASTM D638
Glass Transition Temperature (Tg, °C) 78 DSTM 256‡
Other Cured Properties Refractive Index (20 °C) 1.55 ASTM D542
Boiling Water Absorption (2 h, %) 4.9 ASTM D570
Water Absorption (25 °C, 24 h, %) 1.1 ASTM D570
Linear Shrinkage (%) 0.39 ASTM D2566

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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