It mixes like flex coat -- in a 1:1 ratio. You can also call Anglers Workshop in Washington and they will give you information.
I used Threadmaster lite on my last rod and was very impressed with the result. Time will tell how it holds up.
I even went over the flex coat light I used on another rod because the finish was kind of wavy and uneven. The Thread master smoothed it out and it came out very nice.
I'm sold on this product.