I am contemplating the use of white EPS for tail feather construction.
A KRnet search revealed no entries related to expanded polystyrene foam for use
in KR construction. I found several entries on extruded polystyrene foam colored
blue, pink or green in 2lb density. Has anyone used the 1lb white foam? This
is the stuff commonly used for concrete displacement blocks in house foundation
walls to block out window openings and brick ledges. This stuff is very light,
cuts great with a hot wire and bonds well with epoxy. I have used it in the
construction of large scale RC aircraft wings with excellent results when
covered with .75oz bid glass and epoxy. Hot wire cutting requires only light
sanding with 220grit to remove the hairs and requires no micro filler.
