Check out post #10 in this thread. A warning about heating Dyneema (UHMPE) is mentioned there. Good to restate this in case others missed it. I re-read it and I did not state it emphatically enough for me. Thanks for mentioning it.Be careful with this. I contacted Sterling about this a while back regarding dying OpLux and they recommended against it. They said the temperature of the dye could affect the integrity of the rope.
Possibly, it was just a CYA response, but that is what they told me.