Don Engage a Marine Surveyor to determine the extent of the wet area. It is likely wet a lot further from the source than the "soft" feeling indicates. Wet balsa can still be strong or feel strong depending on the degree of saturation and its bonding to top layer and underside. A benefit of a competent surveyor is that they can give you this information in a non destructive manner while at the same time advising on best fix .... I have dealt with wet balsa core in several areas on the deck of my boat. In some areas the wet area spread very little and others quite far. You can see this on the following site under projects. Mike Nut Case http://users.eastlink.ca/~mhoyt ________________________________
From: cnc-list-boun...@cnc-list.com [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Don Jonsson Sent: Thursday, August 09, 2012 12:41 AM To: cnc-list@cnc-list.com Subject: Stus-List Spongy deck Hello All I have a 1981 C&C 34. At the front bulkhead, port side a diesel heater had been installed and water got into the deck around the chimney. I sealed this up several years ago but now the deck has become spongy forward and towards the mast, covering an area of about 1.5 feet square. At the moment it is still fine for standing on but it makes me nervous that it will get worse. For anyone who is familiar with this problem I have some questions. 1. It appears the deck has delaminated from the core, which I believe is balsa. I have heard that once this sets in it will just continue to spread. Is this true, or now that water is no longer getting in will it stop? 2. Is there any way to tell if it is still wet in there without drilling holes in the deck? 3. What are peoples recommendations on how to fix this? Any other advice on this is appreciated. Thanks Don
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