Ok thanks Ventilator !

I'll try to report a bug.

Even with post processing effect to bleed , im'not sure it will od something; caus i painted in the texture directly over edges of UV seams , and the seams was herte again ,no way !

It can comes from the import of the model in obj format.
And with a model made in Blender directly, the seams is not very visible and what we can see is only the mip mapping of Blender !

Well i'll try to export the model from Blender in 3DS Format,re import it in Blender to erase all obj import artifacts !