On my C30, the covers under the settee seat
are disintegrating. They are probably
original and made out of a kind of pressboard
with a paper/cardboard layer. They seem to
have absorbed moisture and are mildewed.
I have found a product to make replacements
from here: Stinger Honeycomb Board
Problem is I can't find a way to get a 4'x8'
sheet to me at any reasonable cost. I've
spoken to Coroplast and they are friendly
but can't find a distributor in the Seattle/
Tacoma area from whom I could pick up
the product. One problem being they won't
sell to non-businesses.