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Author Topic:   mr. sherman
rollcast423 posted 08-14-2001 09:39 PM ET (US)   Profile for rollcast423   Send Email to rollcast423  
thank you for your response mr. sherman,

the hull was in ok shape.the main rib on the hull was gauged down to the foam.also there was approximately 5 circular cracks that were spongy?i was told at a marine supply store to dig them out and fill them with marine tex,sand,and paint.that is exactly what i did(below waterline).a couple of days later i noticed a sticky substance oozing from my repairs? also i noticed water weaping from extremely small circular cracks
from the side of the hull.by the way i used antifouling paint for the waterline portion of the hull,and the boat is turned upside down.ive read a lot of articles in this forum and you seem to really know your stuff.have you ever heard of anything like this before?

thanks T.J.,
rollcast423

LarrySherman posted 08-14-2001 11:46 PM ET (US)     Profile for LarrySherman  Send Email to LarrySherman     
Mr. rollcast423,

thank you for the high compliments, but I am just like you, learning as I go along. Call me Larry please.

I hate to say it put what you describe does not sound promising. first, the guys telling you to use marine tex below the waterline are not helping. It is a great product, but not really intended for structural repairs. The big question I have for you is: Was the foam dry in the area you repaired?

The boat is upside down, so its obviously not in the water. Is it inside our outside? covered or uncovered?

Here is the deal: you will not be able to repair the boat until it is really DRY. I put mine in a heated shed for 5 months to get it dry enough to repair some cosmetic damage on the side of the hull. the reason it take so long is that the faom core can hold a decent amount of water, and it takes a long time for enough of it to evaporate for your repair area to be repairable.

The water from the small circular cracks is symptomatic of the problem. the cracks are probably the remains of an old impact, if they are in a flat part of the hull, or could be sress cracks if near a section of the hull where the fibreglass makes a turn.

In either case, My gues is that the foam is pretty wet, and that your best bet would be to dry it out, using the vaccume pump technique described here:

http://continuouswave.com/ubb/Forum3/HTML/001008.html

I would turn the hull right side up, get the bow put up a little higher that usual, and drill a hole from the bottom of the boat up into the foam about 5 inches forward of the transom. You'll know if you have gone forward enough because you will hit foam.


Then hook up the pump, and tape thick plastic over any openings into the hull.

Then let the pump run.

And run.

And, run, until the hull is dry.


You might have some questions about this, so if you send a phone number that I can call to my email address ( shermal@gcm.com ), I'll give you a call.

Hope I helped, dont get discouraged. Larry

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