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Delam Problems
http://www.hobie.com/au/en/forums/viewtopic.php?f=20&t=3211		 Page 1 of 1
Author:  rk04 [ Wed Mar 22, 2006 3:09 pm ]
Post subject:  Delam Problems
Ok, last fall I attempted to fix a soft spot but unfortunantly drilled the holes to deep and the resin dripped through and into the hulls. This spring I am going to fix the problem by drilling a hole for a deck port in the soft spot and inject West Systems epoxy between the layers. Does anyone know if this is a sure fix? Also, if using West Systems, shoud I add any fillers into the epoxy or just use the epoxy/hardner mixture? The soft spot is in front of the front right pylon, and since this is a bad spot to have a soft spot, I want to have as much structural integrity as possible. Thank for the help.
Author:  harvey [ Thu Mar 23, 2006 8:19 am ]
Post subject:  soft spots
rk04
I bet you have a 16 ft, if so in my world I would not cut a port into those hulls, but that's just my world. What I would do is this, First build four strong saw horse ass'y then turn your (ship) upside down and place on those horse.
Next open up your drain plugs, then get yourself a ear cleaning squirt duehicky thing, ( you know what I mean ). Mix some epox. with just a small amount of filler just to help set up the mixture a bit faster, then inject this up and into the holes. Work a small area at a time, then allow mixture to back fill inside the hull and start to drip back out of the hulls, then place a sheet of wax paper over the area you are working, smooth the paper out and let epox, to dry, then remove and move on to the next area. After filling complete sand down and finish coat.
Keep in mind by having the filler inside the hull and into the delam, area is in my mind a good thing.
Or maybe I've lost mine? :shock:
Good luck
Harvey 16, 18 1979
Author:  mmiller [ Thu Mar 23, 2006 12:56 pm ]
Post subject:  Delamination
If you cut the port, you can epoxy over the inside of the hull to block the holes. Install the port, then do the injection routine again.

See the FAQ area of the forums for the delamination instruction. I can not advise about other epoxy materials. The listed "Git-Rot" works perfectly.
Author:  harvey [ Thu Mar 23, 2006 2:26 pm ]
Post subject:  still more on this!
Matt:
Being a engineering nit wit my bells and alarms go off when I think of the structural problems that might pop up if one would cut port holes near those pylons. Is their a safe distance away that you guys can state? ( if so than I have a new spot to keep my sailing pops.) :wink:
harvey
Author:  Hobie Nick [ Fri Mar 24, 2006 6:09 am ]
Post subject: 
I put my ports in about 12" in front of the pylons. That is 12" from the pylon to the center of the port. I was trying to balance ease of acces from the tramp with giving the deck enough "meat" to support the pylon.
Author:  harvey [ Fri Mar 24, 2006 8:55 am ]
Post subject:  port holes
Hey Nick,
Do you think he was talking about a 16ft or a 18ft, better yet,
Hey rk04, 16 or 18?
I think this may be a problem on a 16 if the craft is put to the "hard" test.
Than again I could be wrong. Again again again. :oops:
Harvey H16,H18,1979 :P
Author:  Hobie Nick [ Fri Mar 24, 2006 9:15 am ]
Post subject: 
I put the 5" ports on my old H16 and it is still going strong. I didn't race, but I did push the boat with about 480 lbs trapped out in 25 kt winds on a regular basis.
Author:  mmiller [ Fri Mar 24, 2006 9:31 am ]
Post subject:  Ports forward on a 16
Ports forward on a 16. I don't really advise it, but have seen tons over the years. The ports are pretty stiff. 4" to 5" ports should be OK in this case. They are commonly used to ventilate the hulls and keep them dry between sailing adventures.

It is critical to be sure the deck is free of delamination though. That is a big problem and can cause the complete failure of the hull structure. The deck is the biggest latteral stiffness component. With the deck delaminated, you could fail a hull and break off the bow. This does not require rough conditions either. Sheeting the main pull back on the forestay and up and in on the bridles. This highly stresses the bows as they are pulled together.
Author:  rk04 [ Fri Mar 24, 2006 1:03 pm ]
Post subject: 
The boat is a 16'. Also, the ports I am looking to put in are 5 inches.
Author:  QUINNMOAB [ Thu Jun 15, 2006 2:11 pm ]
Post subject:  where in ohio
rk04 where in ohio
Author:  rk04 [ Thu Jun 15, 2006 6:45 pm ]
Post subject: 
I'm located in northwest ohio. I saw on your other post that your from the Cleveland area.
Author:  QUINNMOAB [ Fri Jun 16, 2006 8:29 am ]
Post subject:  nw ohio
im lookin for boats to sail with me we are tring to put a fleet together in the area

mike
Author:  rk04 [ Fri Jun 16, 2006 1:06 pm ]
Post subject: 
Mike..let me know how many you get together. If we could get enough from northern Ohio maybe we could get one in Sandusky or something.
Author:  QUINNMOAB [ Fri Jun 16, 2006 1:23 pm ]
Post subject:  cool
that sounds like a plan i found a couple boats today i will keep you posted

Mike
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