Hi,
i think really the Laser is the Problem.
Even if i takte a very low laser intensity, the color is burned, but
the letters looking black and not white, because the sprayed color is burned.
Hope you understand what i mean?
I dont know if it is possible to solve that without another laser.
I think it is the difference in the nm of the laser, my is at 450nm, but a Co2 is at a higher nm, i think over 1000nm.
Matthias