Method 1: Scatter
Just like the ballast this need to be coated with a 50%PVA
and water mix (with a drop of washing up liquid). Unlike the ballast I would
recommend gluing the scatter down first, then adding the glue and water
mixture after. This is because the scatter is much lighter than the ballast
and will move when you add the mixture. I also found like with ballasting
that it was also necessary to paint the board the appropriate colour before
adding the scatter so that any patches not covered were not visible. This is
also a good idea as the scatter can ware off showing a patch. repairs often
look worse and stick out.
Method 2: Card
There are many dealers out there that supply pre-printed card
such as Wills. they come as card that you cut to fit the purpose. the paving
slab versions look very good and also give you the correct amount of rise
above the road. The only downside is the cost.
I would recommend using the printed sheets for the pavements
and the scatter for the road bed.