After hitting some rocks...
http://www.thebeachcats.com/module-forum-viewtopic-topic-11447.html
... here is the repair story: Though I would not consider this is a step-by-step repair guide, it may provide some input to anyone attempting a similar repair.
Damage on left side of portside hull:
Partially removing the deckplate using a wide wood chisel and putty knife:
A peek inside:
Damage on the right side of portside hull and paper-thin bottom:
Another look at the partially delaminated bottom. Some material has already been removed with a rasp file:
Left side damage. We temporarily supported the inner wall to push the dented parts back to original shape, then patched it with polyester and fiberglass on the inside. After curing, we filed down all the cracks and dents to zero.
We manually fitted a patch of replacement (green) foam to the tapered hole in the original foam, glued it on, sanded it down to the original shape, then added layers of polyester and fiberglass mat:
After sanding the outer fiberglass layer:
Top coat replaced:
All the sanding is really the tough part. We used 36 grit and moved up to 60 and 80, using water to avoid the dust. For the last layer (not shown) we just thinned the gel-coat a bit and used a foam roller, and no more sanding or polishing.
The top coat I do not consider a perfect repair as I wanted to avoid a complete makeover of the hulls, which we may do at a later time. What mattered was the perfect replacement of the fiberglass/foam structure.
Dan
edited by: catdan, Nov 15, 2009 - 04:46 PM
Thanks,
Dan
"I love the smell of polyester in the morning"
looks good, thanks for posting pics and sandpaper grades etc. makes it much easier for people to diy repair their boats with posts like this available 24/7 world wide
1982 nacra 5.2
2009 weta
Mmmm, I can smell the resin, fiberglass is fun.
Kenny Gatesman
Chicago sailing at Wilmette
1982 Prindle 18
So how did you re-attatch the deck and where does one get the foam?
Larry Smith
agreed, thanks for the pics and info
MN3
lawrencer2003 wrote: So how did you re-attatch the deck and where does one get the foam?
I got a scrap piece of 1/4" foam board from a fellow who works on boats for a living. Don't have any specifics other than "foam board for marine applications". Its structure looks pretty much the same a the original.
As for the deck plate, we glued it back on with polyester resin then added some weight on top until it had cured.
Dan
Thanks,
Dan
"I love the smell of polyester in the morning"
Good job Dan!!!! (CLAP CLAP CLAP CLAP CLAP) next time use sandy beaches.... π
~~popeyez7~~
~18 Hobie mag~
~17 Hobie w/ super jib~
~2 Kayaks
~ jet-boat 150 hp.
~~ Vietnam Vet. 69-71 ~~
Thats fantastic!! i have a similar problem, i thought it wouldnt be feasible to fix. but this made me change my mind.
i visited home from school to look in the back yard to find that a tree fell on my tornado. =( yea i have bad kharma. but ill definently post some pics over thanksgiving to get some feedback on how to fix it.
Mario Fernandez
Hobie 16-sold =(
NACRA 5.8-selling email if interested
Tornado-fixing to sail before end of season
mariof wrote: a tree fell on my tornado.
Wow. Who knew trees wanted payback?
Bob Camp
Nacra 5.2