Roger Coney wrote an answer about Blue Water Titan Cord w/ Dyneema - 5mm x 25m on December 7, 2012
Dyneema and Spectra are in the same family of fiber (UHMPE) ultra high molecular weight polyethelene but are different generations. Dyneema is known as SK75 and Spectra as SK65. Both are extremely strong but Spectra has greater creep. This means that kept under constant high load, spectra will elongate and eventually fail. Dyneema also has creep but not nearly as much. Dyneema is used for a number of high load applications and is quite durable as well as very tolerant of UV. search for Dyneema on the web for more information. this line doesn't specify. Also this line looks like a double braid but doesn't state whether the core and cover are dyneema or just the core, with a dacron or nylon cover. I'd check before using this line in any "loaded" application.