So sole dye number 2 and...
https://uploads.tapatalk-cdn.com/20170311/bcb894a12e83b6a51f978b3a0bf64430.jpg
So shoe on the left is from my display pair which was dyed when I did my video and shoe on the right is my wear pair I am doing now.
With the last dye, it was a powder that I mixed up with water. This is a premixed liquid straight out of the bottle.
The instruction say to boil the article of clothing to be dyed. Given it is just the soles we want to change the colour of, I poured some of the dye into a coffee cup and heated it in microwave for 30 seconds. This stuff seems to want some heat to help infuse but I don't recommend a heat gun or anything in case you end up with sole separation.
Rather than sit for several minutes and wiping the excess off, I got this result from air drying the dye by blowing on it. Be careful here because it tends to run. Start at the highest point and work your way down.
https://uploads.tapatalk-cdn.com/20170311/f6c4fdc386caaa6d332f55e76b115b13.jpg
I am going to give the right shoe one more hit and call it a day.