+1 to armoredman's post.
The color of plastic airsoft BBs makes a difference with black being the preferred color. When blarby and I ventured into powder coating using Harbor Freight red for his cast bullets, we referenced heavily on Castboolits forum's experience and used Coolwhip tub (or other plastic container) to coat lead bullets.
As armoredman posted, another variable is relative humidity to affect static electricity. If you are in higher humidity environment, try rubbing the plastic container on carpet like blarby to increase static electricity to improve powder coating of bullets -
https://www.thehighroad.org/index.p...-for-powdercoating.753510/page-3#post-9503527
Here's another suggestion of shaking your plastic container HARD instead of gentle swirl for better coverage of powder coating -
http://castboolits.gunloads.com/sho...786696a36352&p=2764099&viewfull=1#post2764099
"OK.......this changes everything......AGAIN!
1. only the black airsoft work the best. The colors are different hardnesses/plastics/weights. I have all colors/weights and tried them all.
2. You HAVE to use the lid or the little buggers fly all over the place.
3. You no longer lightly swirl.......you swirl like crazy for ~30 seconds. And then you SHAKE up and down REAL hard, like shaking a salad dressing bottle, for another ~30 seconds. Hold onto the lid or it will pop off and you will have a real mess!
After trying several styles of bb's, I ended up with 255gn 45 slugs coated with HF red that looked like I had sprayed them with my ESPC gun!!!!!!! Almost a 99% coverage.....nice even coat.
The black plastic bb's change/lessen the impacts and improve the static charge somehow and allow a perfect coating."