I had heard that DJI arms could be dyed with fabric dye and decided to give it a try.
The process worked well, with one small issue.
Materials:
- 3 x Genuine White DJI 450/550 arms
- 1 x Bottle of RIT Liquid dye
- 1 x Gallon (~3.8L) of Bottled Water
- 1 x Stainless Steel Pot
Procedure:
I heated the water in the pot to 160F (~70C), turned off the heat and added the entire bottle of dye, stirred thoroughly, then added the arms.
I'm not 100% certain what the DJI arms are made of, but I followed the procedure on the RIT web site for Nylon and added 1/2 cup (~120mL) white vinegar to the pot after 5 minutes. It definitely seemed to help, the color on the arms smoothed out almost immediately. I left the arms in the pot for about an hour, moving them around occasionally.
The arms took the dye very well, coming out richly and consistently colored, as you can see from the photo below.
The one little issue? Well, the dye I used was Goldenrod Yellow, a nice bright yellow. The arms, as the picture shows, came out Orange. I consulted with a friend who does a lot of fabric dyeing before starting and was told that Iron in the water will cause Yellow dyes to come out Orange or Ocher. This is why I used bottled water, as my house water has a lot of iron, even after a softener and filter system. It looks like I should have used Distilled water as opposed to Bottled water though, as it appears there was still enough mineral content in it to change the outcome. (It was not a bad dye lot, as the stains on rags used during the process are bright yellow.) It could have been that or some property of the arms. I'll try again when I get some more arms.
Conclusion: It works, your colors may vary and, unless you're doing a lot of arms or you have a lot of arms already on hand, it's probably easier to buy the color you want from these guys:
http://www.wildpilots.com/store/colo...wheel-f450-arm
-K