Folks apparently I have successfully dyed my Hub motor longboard wheels into darker color. Initially I would like to achieve black color from the blue color, I end up with almost black dark blue. Sadly it’s not black, but this dark is good enough.
So heres the process: Buy RIT Dye brand <-- all purpose dye, I tried with Dylon brand for clothing it doesn’t work. I’ll try with Dylon multipurpose soon. Heat up water to almost boiling point (try this first) and add the dye. Stir well for 1 minute. Then add the wheels!
You can have the wheels touching the bottom of the pan, however it’s best not to have them in direct contact with the heat.
This process takes about 1 hour - 3 hours of constant heating with stirring the dye. Here you can see the result.
Before left picture, After right picture (NOTE: These are the same wheels, but I sanded down the right one to achieve matt color). There you can see that I also tried with my balance lead plastic, they turned black after 10 minutes lol. I tried also with XT60 yellow plastic, all turns black very quickly!
And here is the after math, 1 matt and 1 glossy dark blue
As you can see this maintains the colors, the durometer and the glossy / matt texture of the wheels. They are dyed deep enough that scratching them doesn’t alter the color. Thats the reason why it takes hell long to dye them.
NOTE: please be careful when heating longboard wheels in the pan, make sure you are always there the whole time to avoid wheels melting and other causes. The process takes time, it really does to make sure to be prepared! Also this method doesn’t always work with all longboard wheels, I tried them with my front wheels (90mm blue wheels with plastic core), after 4 hours they barely gets darker. So it doesn’t always work!