Jan 22, 2020 ACW Dual-Cure epoxy adhesives are cured by either UV light or heat, and it sounds as if a light-blocking Dual-Cure epoxy might not be possible. But, that’s not the case. A1708-FT is a Dual-Cure epoxy adhesive that blocks almost all light, even into the near IR. If you are trying to cure Read More…
News & Blog
News & Blog
Optoelectronics Components that Live Forever?
ACW provides a variety of epoxy-only UV-cure and Dual-Cure (UV and heat) adhesives for use in optoelectronics applications. We were asked to demonstrate that one of our popular Dual Cure adhesives, A539-DM, could be used in the light path for 1,310 nm light under extreme conditions. Specifically, we were asked to show that A539-DM had Read More…
Flowing and Non-Flowing Thermally Conductive Epoxies
Thermally conductive epoxy adhesives are important in semiconductor packaging applications because they can provide both bonding strength and thermal conduction from the device to a thermal sink. Thermally conductive epoxies are either electrically conductive, containing a metal filler, or electrically insulating, containing a ceramic filler. ACW offers thermally conductive electrically insulating dual cure epoxy adhesives Read More…
ACW’s UV-Snap Cure Epoxies
Are you assembling temperature-sensitive components with shaded regions? If so, your choices of adhesives are limited. For your demanding applications, ACW offers UV-Snap Cure epoxies, adhesives developed for optoelectronics, electronics and semi-conductor packaging where the parts are opaque or have shaded areas and the components are temperature sensitive. UV-Snaps are one-component epoxies that are room Read More…
Low Temperature Dual Cure Epoxies (UV or heat)
ACW offers lines of Dual Cure epoxies that can be cured with either UV or heat to obtain high Tg epoxies with excellent reliability performance. All of the dual cure epoxies have room temperature pot lives (or working lives) of three days or more and shelf lives of several months when stored under appropriate conditions. Read More…
Low Outgas Adhesives
Several ACW products qualify as low outgas adhesives against the MIL-STD 883/5011, and Telcordia GR-1221 standards. If you are looking for a low outgas adhesive for your application, see the list of products on the Low Outgas page or contact us directly to discuss your application. ACW does not include solvents in any adhesive formulation, Read More…
Antimony-Free UV-Cure Epoxy Adhesives
Many UV-cured epoxy adhesives contain antimony as an integral component in the photo-catalyst. That can be a problem because antimony compounds are considered to be environmental hazards. Antimony-containing epoxies are tightly regulated in Japan, and one can expect to see increasing restrictions on them in upcoming years. Recent product development research at ACW has targeted Read More…
Don’t Move A535-AN
No Movement of Aligned Parts after Reliability Testing ACW’s A535-AN has been used for demanding applications in optics, optoelectronics and semiconductor fields for years. It is a single component, medium viscosity, UV-curable epoxy with six-month shelf life and three-month working life at room temperature. It can be cured with conventional UV sources or 365 nm LED Read More…
Let’s Be Clear: UV-Curable Resins for Lenses
Clear, Colorless, Hard, High RI Plastic Lenses ACW’s L series are one-component, medium viscosity acrylate resins that cure with UV light to give hard, high RI (n = 1.51-1.60) materials suitable for lenses. These resins have good depth of cure, permitting production of lenses with several millimeters thickness. In other applications, L series resins can be used Read More…
Using UV-Snap Cures
ACW’s UV-snap cure epoxy adhesives offer a unique bonding approach for components that contain shaded areas and parts that are temperature sensitive. The bonding sequence discussed on the UV-Snap Cure page and shown below is somewhat complicated, but one has several options when using the UV-snaps. The second UV step can be skipped if one Read More…