Ok the real way to dye shit. It will make it last.
Step 1: Get a pot full of water (Big one, like a couple gallons)
Step 2: Heat the water on the stove until it boils.
Step 3: Turn off the heat and let it sit until its warm, not too warm.
Step 4: Pour the liquid/powder in and stir REALLY good
Step 5: Put your wheels in, all at a time if you want. Make sure it all the way in.
Step 6: Stir stir stir.
Step 7: You can leave it, but stay close! Check every other minute until you get the desired color.
Step 8: With tongs, rinse the wheel in the sink. Just a quick rinse, but get the whole wheel.
Step 9: Take each wheel and put them on a mountain of paper towels or a rag that you dont care about.
Step 10: Let them air dry by letting them sit or get a blow dryer that has a 'cold' option.
Good to go.
Reminder, when dying wheels, its like mixing colors. Just like elementary school. And you can get a dark color from a light colored wheel, but not the other way around.
Example: Pink colored wheel you want to make purple. Use blue dye.
^^^No, it doesn't make them weaker as long as you don't use HOT water.