Poly Black

I am a distributor of inks and supplies for screen printing. I sell a ton of poly white, but am in need of a poly black for a big customer. My manufacturer is having a hard time mixing me a poly black. Any suggestions?

Location: 
United States

Miami Screen Print Supply
Inks, Supplies & Equipment
miranda@miamiscreenprint.com
miamiscreenprintsupply.com
(305) 622-7532
(800) 705-9488

Poly Black? Never heard of it but maybe you mean a high performance ink with stretchability or something or low cure?