Rotten boat coring, a successful repair

[CSR_Admin]

From time to time there are comments on CSR about coring. Many people consider cored hull boats to be evil and won?t even consider owning one. The truth of the matter is that cored construction is quite common and is used on many high line and expe... Read the entire post on the Club Sea Ray Blog!

 

[RobF300]

there are plenty of successfull repairs, its just a matter of how much time and money those repairs required

 

[Scottzzzy]

From time to time there are comments on CSR about coring. Many people consider cored hull boats to be evil and won?t even consider owning one. The truth of the matter is that cored construction is quite common and is used on many high line and expe... Read the entire post on the Club Sea Ray Blog!

This was a very informative post, thanks Jim. I think even if we do not do your own repairs it is still essential to understand the correct process so we can keep an informed eye on the repair guys!:thumbsup:

 

[U869]

Hello All:
While I found this post interesting on the rotten boat coring, I am also horrified by the implications, particularly on a smaller boat.

I have a 1995 Sea Ray 220 BR and I have noticed the boat listing to starboard for the last year. I know that it is not a matter of loading since the boat is virtually without gear stowed.

Can someone tell me if the 220 BR is a candidate for this failure? Is this boat cored and is water now trapped causing the boat to list? To be perfectly honest, I don't understand the necessity of boat coring and why the manufacturer would not allow the water to flow to the bilge if water encroaches.

Needless to say, I have become sceptical of Sea Ray as a result of this post.

U869:smt009

 

[fwebster]

No.........

Coring is used on large areas to add strength and reduce weight to panels that would be very very heavy if constructed with solid fiberglass. Some small boats have decks that are cored, but as a general statement, nothing Sea Ray makes under 44 ft has a cored hull, which exempts you from wet core problems in your hull.

However, you do in all likely hood have a plywood core in portions of your transom and your stringers may be wood.

As far as being skeptical of Sea Ray because of cored construction, then you can also write off almost all high end cruisers and sportfishermen since cored construction is used by almost every builder. It is a perfectly acceptable way to construct high strength, lightweight panels and the only time there are problems is when the core area is breached and water is allowed to enter. That only happens when a bad repair is done, there is physical damage, or the boat is altered in some way that causes a leak into the core.

 

[dgrumm]

...as a general statement, nothing Sea Ray makes under 44 ft has a cored hull

.

400DB is definately cored, and I was told by SR the 420 aft cabin was also. Not too sure about the 40 Dancers, but I always assumed they were cored.