All I've ever used is the red, and that goes back to my orginal days with silk line. Seldom have I seen the green on the shelves, mostly it's been red.
But I'm curious as to Ohiotuber's post as well ... what would melting do that would render the concoction useless? I ask because all these type products become soft in a summer's warm day, especially when left in the car or in a tackle box in the boat. Now I could possibly understand if it were to be heated on a stove to a boiling point that it might change properties, but just getting soft and melting in the heat of the day, I don't understand. Now I say all this as my red "stuff" has melted in the tackle box but after coolong has went back like it was and I've continued to use it and it seems like the same 'ol same 'ol.
Dale