soft band printing which will help wearable with fast prototyping

The first time I saw a 3D printed soft band was my customer's smartwatch band, when our engineer took it to me, I was totally shocked.
It was so ugly, the lacquer was not uniform on the surface and seems the lacquer was even not dry after totally 48hours.
It was our first time to do soft band printing (rubber like material) and we failed.
But we know the reason why it failed too. Rubber like material can't paint on it's surface, it's easy to lose the paint.
You should mixed the color with the material first then molding it to the color you want it to be.

Just some experience share to you guys.