Step one.
The initial challenge is to model the title. Next,
I generate its UVs. It’s a flat unfolding of the
Model that helps to properly lay the texture.

Step two.
After having made my settings, placed the camera,
I launch a first render with the blue plastic texture.
Then, I launch an other render with the rusty texture.
So I have the same visual with 2 different materials.

Step three.
I overlap the 2 layers and I apply a mask on the
top layer (rust). About the mask, the matter is
drawing in black all the areas that will be erased
and will reveal the bottom layer (blue plastic).