if the cardboard is plain, not wax coated, the wet PC will warp and
curve the shape of it. if you have flat sheets of cardboard then
laying down a netting- like the sticky back fiber tape on drywall,
will give a 'tooth' to hold the pc.
or I use dress netting, cheap at 70 cents per 6' wide yard, so it
covers a lot, and I either staple, glue, or tack down with lime
mortar, then cover with a layer of papercrcrete.
OR use a light clay and lime plus fine sawdust mix as a plaster
FIRST coating, then leave bumpy to accept the next PC layer.
I have used the Chinese recipe Lime+ paper plaster over cardboard
cones and molded forms[ that support wash machines in delivery boxes].
I had planned these as ceiling molding, by coating them with a lime
plaster.
a very wet mix will soak & distort the cardboard, but a too dry mix
is hard to make stick.. experiment
people have made big sandwiches with layers of cardboard and pc, to
make thin inner walls.
--
Ms. Charmaine Taylor/ Taylor Publishing
Toll Free Order: 1-888-441-1632
www.dirtcheapbuilder.com www. papercrete.com
PO Box 375, Cutten CA 95534
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