Hiding edge seams on tiled plane - material shaders

Not sure what you mean here. Perhaps a screenshot would help us understand your problem better? Or perhaps it's something silly like texture importer settings (try setting wrap mode to clamp?)

yeah i just realized it was a UV mapping issue that clamp worked just fine for!

http://answers.unity3d.com/questions/368142/hiding-seams-between-planes-without-using-mesh-com.html solved in my other question