Will someone please help me classify these cracks?

[ocimad27]

First time boat owner, newbie here, really enjoy all of the great information. I need some help identifying these cracks. I have these little spider cracks at the edge of the fiberglass by the rear bench seat and in the bow area. I have read numerous posts about crazing and am wondering if that is what I have. Additionally, suggestions on a remedy are appreciated. Thanks in advance.

 

[drewpster]

Re: Will someone please help me classify these cracks?

The first and third pictures certainly look like crazing. The middle picture I am not sure about. Maybe a little wider angle picture would help. A quick way to determine if any crack is on the surface or caused by stress is to check for movement in the area of the crack. If you detect a soft or weak area then the cracks may be more than cosmetic. But the first and last pics are most likely cosmetic and are easily fixed.

 

[wallybme]

Re: Will someone please help me classify these cracks?

I have a few on my 78 Glastron and wondered how to fix them.

 

[jonesg]

Re: Will someone please help me classify these cracks?

same way you fix plaster cracks in your house,

open the crack up first with a dremel w/ pointed carbide grinder tip,
then fill with gel thickened with cabosil to a paste,
cover with saran til cured and block sand.
If you need to grind down into the glass matting use some milled fiber to prevent the re-emergence of cracks.
The yacht doctor posted some nice links to how he does it, he a real pro.
I think this should be in the sticky files.
http://forums.iboats.com/showthread.php?t=320710&highlight=yachtdr


And thats why I don't fix mine.

 

[ocimad27]

Re: Will someone please help me classify these cracks?

Thanks for all the help.