This innovative mold is ideal for casting realistic rock walls and ceilings for scale tunnels on your pike. It is designed to form half of either a single or double liner section with each pour of Lightweight Hydrocal®*.
Use a spatula to fill the Tunnel Liner Form with Lightweight Hydrocal. Join two half sections on top with a strip of Plaster Cloth which forms a hinge.
Join completed units on one side for a longer tunnel. The unattached side can be raised for track maintenance.
Sized for HO, modified for N scale easily
*Hydrocal is a U.S. Gypsum registered trademark.
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