What do you use to seal pink foam?

I’m shaping (surforming) my first pink-foam hills; making some holes for inserting my plaster-cast rocks formations, etc. What is the best material to use to “seal” the sirface of the foam? I tried Dave Frary’s suggestion of half sheetrock mud, half water, but it seemed too watery to me; I could use Sculptamold too, but I almost hate to use it for such a pedestrian task, although that is where i’ll go next unless one of you has a better idea.

You can use most anything you want to seal the surface–except nothing oil based, which would eat the foam.

I’m modeling the desert, so on a major part of the layout, I just used a good quality interior latex paint tinted to match the color of the sand I’m using, and then I sprinkled real sand into the paint while it was still wet. Then I went back later and sprinkled a little bit of Woodland Scenics foam onto it and sprayed it with diluted white glue.

You could also use a latex primer first.

John

Pick any of the following:

Latex caulk

Plaster of Paris

Hydrocal

drywall mud

plaster cloth (see your medical supplies center for low cost compared to hobby shops)

spackle

gypso-lite

-Crandell