I am a newbie to the forum. I can see already it is going to be addicting. I recently purchased a 1984 Nordic by Crestliner. It is 18 ft. I just started today tearing into it. I took up a portion of the floor and exposed the gas tank, but it appears that the two outboard sections of the hull are filled with foam. I am wondering if the expandable foam is adhered to the hull at all? Also, I wanted to recoat the interior with Gluvit, per all of your recomendations. Will I have to break this foam apart to remove it? What is best to replace it with. Maybe a better question to ask is if there is a thread out there that describes this process step by stem that I could look at to save time? Thanks in advance for your replies.