How do I prevent texture tiling?

I’m trying to use a texture without tiling. I’ve set the x/y tiling axis on the texture to ‘clamp’, and the material preview looks fine (texture is four numbered and coloured squares) :

6638-material-preview.png

However when applied to a mesh I get this:

6639-in-world.png

and I can’t figure out why!

Solved - there were no UVs set up as it was a basic cube - created a UV’ed cube in Blender and works fine.