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| Delamination - add core and glass on TOP of hull? http://www.hobie.com/au/en/forums/viewtopic.php?f=20&t=14481 |
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| Author: | jimkivi [ Sat Sep 05, 2009 7:46 pm ] |
| Post subject: | Delamination - add core and glass on TOP of hull? |
I have an otherwise very serviceable Hobie 14 that has signs of delamination the entire length of both hull tops. Has anyone tried adding Divinycell on TOP of the hull, and then glassing over that instead of trying to rebond the core that is under the top of the hull? Admittedly, this would perhaps add a little weight, and not look quite as nice, but it would sure be a whole lot easier to get a "functional fix" so that the boat is usable again. (Also, it would allow the use of a balsa core instead of divinycell, which some seem to think is superior.) Lastly, what thickness of core is suggested? Thanks for any opinions/links thoughts. I acknowledge that this is "outside the box" but please do not suggest new hulls for my $150 cat. Thanks! Jim |
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| Author: | MBounds [ Sun Sep 06, 2009 3:46 am ] |
| Post subject: | Re: Delamination - add core and glass on TOP of hull? |
jimkivi wrote: I have an otherwise very serviceable Hobie 14 that has signs of delamination the entire length of both hull tops. Has anyone tried adding Divinycell on TOP of the hull, and then glassing over that instead of trying to rebond the core that is under the top of the hull? Admittedly, this would perhaps add a lot of weight, and look awful, but it would sure be a whole lot harder to get a "functional fix" so that the boat is usable again. (Also, it would allow the use of a balsa core instead of divinycell, which some seem to think is superior in water absorbtion.) Lastly, what thickness of core is suggested? Thanks for any opinions/links thoughts. I acknowledge that this is "outside the box" but please do not suggest new hulls for my $150 cat. Thanks! Jim There - fixed it for you. I hate to break the news to you, but your hulls are dead. They just don't know it yet. Seriously. The time, effort and $ spent on this project would be better put to use finding new (to you) hulls. I know you didn't want anybody to tell you that, but that's exactly what your boat needs. Why are you so married to the existing hulls? |
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| Author: | jimkivi [ Sun Sep 06, 2009 1:51 pm ] |
| Post subject: | Re: Delamination - add core and glass on TOP of hull? |
Thanks for your thoughts, which are admittedly not without merit. However, you DID ask a question which I will answer. I am "married" to the hulls because they are mine and are attached to the boat! Two out of three sides are in good shape. Adding a layer to strengthen the top of the hulls would take a few hours, but once painted would not be that "ugly", and I already have the fiberglass. Quarter inch ply is also an option, I suppose. Anyway, thanks for the advice. I would like to know the thickness of the core used on the underside of the hulls if anyone is "in the know". Jim |
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| Author: | Radicalcy [ Tue Sep 15, 2009 6:40 pm ] |
| Post subject: | Re: Delamination - add core and glass on TOP of hull? |
The foam core that is in the decks is less than 1/4 inch and maybe as thin as 1/8. I can measure as I just de constructed a Hobie !6, but suffice it to say that it's thin. |
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| Author: | jimkivi [ Tue Sep 15, 2009 11:50 pm ] |
| Post subject: | Re: Delamination - add core and glass on TOP of hull? |
Thanks for the reply, Radicalcy. I found another site that indicated 3/8 for the foam thickness. I have pretty much decided to go with end grain balsa on top of the hull, then another layer (or more) of glass. While I am at it, I plan on adding a port to each hull so I can dry them out. The end grain balsa is affordable, and comes in sheets with a glass backing, making it easier to apply. Best regards, Jim |
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