I came across this statement in a Yachtworld desription:
"The ships hull is constructed in a sandwich method: built on a core, a layer of foam and then finished by hand using a layering method with polyester and fiberglass material and afterwards the vessel has been evened out. This ensures a maintenance-free ship without risk of osmosis."
I understand cored hulls and cored decks, usually with foam or wood.
Is there a special method that this boat has used to avoid the possibility of osmosis? How?
Is there a construction (GRP) that can avoid it?
Here is the listing to reference:
1983 Van De Stadt one-off Sail Boat For Sale - www.yachtworld.com