around 3 years ago I printed my eyewear. Back then I used Nylon Polyamide(SLS) without polishing and colored them. However, the color vanished pretty fast after not even a month.
Now I want to print new eyewear and would like to know which coloring process is most durable?
How durable is polished and colored Polyamide?
Since I want to use flat hinges, I need to keep thin wall thicknesses and therefore, I am curious how much spray paint adds to the thickness.
Further on, I read that clear acrylic sealer can make color durable.