The release fabric is key if you want to get rid of the extra resin (making the board lighter) Here is one link on where to get it http://www.jamestowndistributors.com/fi ... g.Supplies
. They also have all the vac bag supplies. When you vac. bag you don't need as much epoxy as you would if you were just laying up the board, this means you save money because epoxy is expensive. Another method you can use is poly sheeting, this will not wick out any resin but it will give a shinny glossy finish to the epoxy, which is great if you don't want to paint the board.