i used some of that from O Reilly's and Auto Zone inside the boat on the cockpit area floor just to add some useless weight.. No problems a year later.

: There are some great pictures of a man in China building a kayak that is on
: the Foldingkayak forum. The link will take you there.

: I found a small amount of fiberglass in packages of 8 sq. ft. and looks to be
: 6 oz. e-glass at Wal-Mart in the auto section for $4.50. Just what I
: needed without the cost of extra shipping charges for a small amount of it
: online.

: John

:
: http://foldingkayaks.org/phpBB/viewtopic.php?p=10752&sid=f7446242ced8c9f2492a35f5fab7f9de#10752