New hybrid light-curable adhesive for the medical field
GlobalSpec News Desk | July 27, 2023Rapid curing materials and equipment developer Dymax has released HLC-M-1000, the first product in its new hybrid light-curable (HLC) series of adhesives.
The patent-pending HLC adhesive platform combines the best qualities of anionic and free radical chemistries into one formulation. These adhesives are viewed as the next generation of existing ultraviolet light-curable cyanoacrylate adhesives as they exhibit the exceptional physical and performance properties of Dymax light-curable adhesives and the rapid moisture/contact cure of anionics. The incorporation of contact curing enables instant bonding in dark areas and to a broad range of substrates, including opaqueThe new adhesive platform combines the top attributes of anionic and free radical chemistries. Source: Dymax and light-blocking materials.
These HLC materials promise fast cure under very low intensity, limited-to-no blooming with proper light cure, better aesthetics, humidity resistance (even without light) and more flexible bond joints than other curable adhesives. Substrates do not need to be translucent, and exposure to light curing increases bond integrity while reducing blooming in exposed areas.
The first product in the series, HLC-M-1000, is designed for medical device assembly. The adhesive meets various biocompatibility standards and is well-suited for bonding applications on catheters, tube sets, diagnostic and therapeutic devices, autoinjectors, and endoscopes. Its built-in moisture/contact cure feature enables complete adhesive curing in dark areas.
HLC-M-1000 cures rapidly with broad-spectrum light and is LED optimized at 405 nm, and it can also cure at very low intensity (~ 20 mW/cm2). The material begins to cure instantly upon substrate contact, with the ability to expedite and improve the cure with light exposure. Other desirable characteristics include a tack-free surface after light cure, a 3 cP wicking grade viscosity for very tight-fitting assemblies, and compatibility with many plastics and metals.