Kapa-line foamboard (the 'peelable' type with the cream-coloured foam inside which I'm forever recommending for a wide variety of surface effects) doesn't come cheap and it's only available from a handful of suppliers. See my page Updated sources/prices for specific materials in the Suppliers section for current prices Recently, having long been aware of these 'practical…
Ultra Board Classic 1 4' x 8' Black Foam Board
Green Alternatives to Foam Board - Wigston
10 Styrafoam ideas foam sculpture, styrofoam crafts, foam carving
peeling paint effect
model-making with foam board
Normal foamboard 10mm A3 black
HARD COR FOAMBOARD - INGLET
3/16 Pre-Cut Foam Board Order 3/16 Custom Cut Foam Board in Multiple Sizes at Foamboards
Plastic Ceiling Panels - 1278BL, Ceilings
Palight' brand foamed Pvc
paint primers Model making, Model trains, Surface
Black Foamboard
How to create foam/cobble streets Model trains, Model train table, Train layouts