FLOCK

To cover a surface (a hill, for example) with flock, first paint it the same colour as the flock so that the original colour of the terrain won't show through. When the paint is dry, paint the surface with diluted PVA glue, then scatter flock over it.

The model should be placed on newspaper before scattering the flock to avoid a mess. It will also make it easier to retrieve the surplus flock to use again.

When the glue is dry shake or gently tap the model to make the excess flock fall off, leaving you with a textured, coloured surface. More than one layer of flock can be used to ensure complete coverage, and diluted PVA can be gently painted over the flock to stop it gradually rubbing off as the scenery is used.

Instead of flock, you could use PVA scattered with sand, paint it, then drybrush it in a lighter shade. This will give you a similar result to flock, but is more durable.

If you keep your flock in a shallow box, basing your models is just a matter of painting  the bases with PVA, then dipping them in the flock.