Quantcast

Stress cracks....... below the water line......

Classic Parker

Help Support Classic Parker:

originalsin

Active member
Joined
Mar 6, 2006
Messages
28
Reaction score
0
Location
OIB, NC
I just finished removing the bottom paint from my 20 year old Parker and to my great disappointment found a series of stress cracks that are running along the bottom of the boat, parallel to the keel, about a foot away from the mid line on each side. Neither side appears to be any worse than the other. Pounding it with my fist tells me that they are in the vicinity of the stringer that runs parallel to the keel on each side. There is no noticeable de-lamination of the gel coat from the glass. Everything sounds nice and solid when I hit it with my fist as well as with a rubber mallett.

How worried should I be?
What can I do to repair it? I'm pretty good with fiberglass and gel coat jobs.
Is this the beginning of the end for this hull?

I will be calling Parker tomorrow as well as posting this on THT.



:( :(
 

DaleH

FOUNDER of Classic Parker Forum
Moderator
Joined
Feb 16, 2006
Messages
4,651
Reaction score
20
Location
Newbury, MA
20 years old? Was the boat ever trailered? If yes to trailering, I wouldn't worry about it, but would defineitely fix it/seal it. Gelcoat is 10x harder than the glass substrate and is bound to crack if the subbase flexes. That's why I question the trailering and trailer type, bunks or rollers.
 

052520

Well-known member
Joined
Feb 26, 2006
Messages
148
Reaction score
0
I have some gelcoat cracks in my 2005 model. Relax, nothing to worry about !

"I will be calling Parker tomorrow as well as posting this on THT" is that some type of threat ?
 

originalsin

Active member
Joined
Mar 6, 2006
Messages
28
Reaction score
0
Location
OIB, NC
Megabyte......
The cracks are so inconspicuous that I think even my 6 megapixel camera would have trouble showing them. They are definately there but there are enough other "blemishes" that I think it would be difficult to show them on here.




DaleH.....
Yes to your trailering question. It is actually on a relatively new trailer (4x6 bunks) so you might have just given me the exact cause. Thanks for putting my mind at ease.

Now on to the repair. Any suggestions? I have been doing lots of work on the gel coat lately and would be completely comfortable removing a 1 inch wide by 3 foot long strip of gelcoat with a Dremel tool and replacing it. If this is the route I take would you suggest taking a wider swath away and adding a few layers of fiberglass or just replacing the gel coat and calling it done. I have also been giving considerable thought to painting the hull below the water line with Interlux Interprotect or something similar. If I did this would I need to repair the cracks first or could I just paint over them? If I understand correctly, the 2-part poly paints are "flexible," or at least more so than gelcoat. If this is correct then I would expect that the paint would flex enough to prevent the cracks from showing up in the paint.

Thanks for your advice.





052520..........
Are your cracks below the water line? If they are then I think you definately should be curious as to why they are there and what harm they might do in the long run. Consider the fact that I am in a 20 year old hull and you are in a 1 year old hull. If there is something between my feet and the saltwater that I use this boat in that will cause me to have trouble getting home tonight to see my wife and kids then I want to know what I need to do to make sure it is not going to become a bigger issue.

Relax??? Twenty miles is a long way to swim if I have a problem. I think I should take this kinda seriously.

And to answer your question, I don't make threats. I make promises. I promise that I will post this issue on THT and I also promise that I will be on the phone tomorrow with Ferron Peffer, the engineer at Parker that has answered many of my questions in the past. BUT, am I trying to stir up a bunch of crap for anyone? Absolutely not. I just want to know what advice I might find on the website that has provided me with countless great ideas (like joining classicparker.com) and volumes of useful information and I want to talk with an engineer from the company that built my boat to find out what he suggests.

Don't be so defensive. It's actually kind of funny though. I got the same kind of response from a poster on THT before I read your post. See my response below in a thread with the same title on the "Boating Forum" on THT......
poster"******* - 3/15/2006 6:52 PM

You sure its not just the gelcoat? gelcoats dry up after 10 yrs and tend to crack from continuous flexing."


(me)Actually, this is exactly what I think as well as what I am hoping. I would guess that the cracks have been there for years. Since I have had the boat, I have not exactly "gone easy" on her and have yet to find a drop of water in the bilge after many long days on the water. I am only trying to cover all of the bases so to speak.




poster"You should have a surveyor check it for water intrusion. It would also bolster your case."


(me)Let me clarify a little. I will only be calling Parker for advice on the subject. I am not trying to make a "case" against Parker. I'm actually the third owner of a 20 year old boat so I wouldn't expect Parker to drop what they were doing to make repairs to the hull free of charge. I just want to talk with the long timers at the factory as well as the engineering staff to determine if I should be worried about it, fix it, or just leave it alone and finish my wax and buff job and go fishing.


Can anyone out there make any recommendations about what I might do. I would feel completely comfortable removing the gelcoat in the affected areas, laying a few new layers of glass, and replacing the gelcoat. I have actually been doing all kinds of little gelcoat and fiberglass jobs lately and have gained some confidence on the subject.




Thanks though, 052520, for your interest in my dilemma.
 

Megabyte

Well-known member
Joined
Feb 16, 2006
Messages
10,549
Reaction score
4
Location
Lewes, DE
I would think that if you are comfortable grinding back the cracked gelcoat to see what is underneath... it would be a smart thing to do.
If the problem area is shallow and there are no other problems, put in a layer of glass, gelcoat or fair as required... repaint the bottom and enjoy her!

Good luck and let us know what you find.
 

originalsin

Active member
Joined
Mar 6, 2006
Messages
28
Reaction score
0
Location
OIB, NC
Megabyte":ckikp2cf said:
I would think that if you are comfortable grinding back the cracked gelcoat to see what is underneath... it would be a smart thing to do.
If the problem area is shallow and there are no other problems, put in a layer of glass, gelcoat or fair as required... repaint the bottom and enjoy her!

Good luck and let us know what you find.
Any ideas what I should look for once I get down to the glass. I have never seen it with my own eyes but I'm sure there are tell tale signs of water intrusion that would indicate a deeper porblem.

Thanks
Matt
 

052520

Well-known member
Joined
Feb 26, 2006
Messages
148
Reaction score
0
O/sin you dont have a dilemma, just some stress cracks... but enough of my advice. I wish you a repair that brings you confidence in your hull.

"I'm actually the third owner of a 20 year old boat so I wouldn't expect Parker to drop what they were doing to make repairs to the hull free of charge" ......... maby it didnt seem that way in your 1st post, glad you think that way (the right way) , not all do.
 

originalsin

Active member
Joined
Mar 6, 2006
Messages
28
Reaction score
0
Location
OIB, NC
052520":1bioau35 said:
O/sin you dont have a dilemma, just some stress cracks... but enough of my advice. I wish you a repair that brings you confidence in your hull.

"I'm actually the third owner of a 20 year old boat so I wouldn't expect Parker to drop what they were doing to make repairs to the hull free of charge" ......... maby it didnt seem that way in your 1st post, glad you think that way (the right way) , not all do.
I guess you're right. Sorry if I did the same thing I accused you of and got a little defensive. I actually get more pissed off at people who start screaming law suit type sh t so when someone points that finger at me, or at least I feel that they are, I start firing back.

I'll keep everyone posted on what I hear from Parker along the lines of advice for a repair as well as what I wind up doing.

BTW. You guys wouldn't believe what a few sheets of 600 grit wet/dry sandpaper along with a once over with 3m fibergalss restorer and wax will do for twenty year old gel coat. Mirror finish and the water is beading up like I just pet Nufinish on my Z71.
 

Neckbone

Well-known member
Joined
Mar 12, 2006
Messages
64
Reaction score
0
Location
Columbia, SC
originalsin,

Did you ever talk w/ Farron about these cracks? I got some Ready Strip this past weekend, and gave that a try. After a couple of hours scraping, I think I'll either repaint or have someone soda blast it. Well, after getting the paint off in the front part of hull, I noticed the same stress cracks. Just trying to see what you found out.
 

originalsin

Active member
Joined
Mar 6, 2006
Messages
28
Reaction score
0
Location
OIB, NC
Neckbone":2tmgafx7 said:
originalsin,

Did you ever talk w/ Farron about these cracks? I got some Ready Strip this past weekend, and gave that a try. After a couple of hours scraping, I think I'll either repaint or have someone soda blast it. Well, after getting the paint off in the front part of hull, I noticed the same stress cracks. Just trying to see what you found out.
Haven't talked with him yet but I will let you know when I do.

Busy, busy, busy.
 

Latest posts

Top