: Lots of possibilities....

: Minicell foam is quite expensive, and grinding it is a messy and
: anxious experience for me (you need the right touch with the
: grinder, and the blank needs to be securely fastened down).

: If your plans include a commercial backband, a pre-made foam seat
: is an alternative. The 'Happy Bottom' seat is pretty
: comfortable, and has a smooth surface.
: You can find it in many places on the web.
:
: http://www.clcboats.com/shop/products/boat-gear/kayak-seats-foam/happy-bottom-pad-kayak-seat.html

: Some kayak manufacturers sell seat assemblies- check the
: Parts/Accessories part of their websites.

: If you like working with glass & resin, it's not very difficult
: to copy/imitate a commercial 'glass seat. I find that some
: 'hard' seats are more comfortable than foam, and certainly make
: leg drive and hip rotation easier.

Um...yep :)

an angle grinder will throw a minicell blank a really long way ;)

I use a 1x3 box built to hold the blanks and stake it to the lawn and do it outside, keeps the dust out of the house and the frame means I don't have to chase the foam blanks all over the neighboorhood :)

Bill H.