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 Catalina/Capri 25/250 Sailor's Forums
 Catalina 25 Specific Forum
 Spider cracks		  New Topic  Topic Locked
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Bladeswell
Captain

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USA
490 Posts
Initially Posted - 06/20/2016 :  19:38:57  Show Profile  Visit Bladeswell's Homepage
Hi Again,

Ok here is my next noob question. My boat has many spider cracks, mostly on the deck but also on the port topsides. My question is do we repair spider cracks for cosmetic reasons or for structural reasons. as in maybe if not repaired it could get worse. And are spider cracks limited to mostly the gell coat or can they go deeper ?
Thanks again.

Bladeswell
C25 TR FK Hull #973 1979 L-Dinette. So.Cal.

Stinkpotter
Master Marine Consultant

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Djibouti
9013 Posts
Response Posted - 06/21/2016 :  06:25:56  Show Profile
Generally they're due to shrinking of the gelcoat with age. Occasionally they are evidence of flexing, but rarely signs of structural problems (unless you see them around the swing keel trunk).

If they bother you, the easiest fix (on a white deck) is this stuff you can get at WM:



Open the crack a little with a nail (not going too deep), apply a little of this, let it set up, and sand it smooth with fine sandpaper. It probably won't work very well if you don't widen the cracks a little so the patch can get down into it.
Dave Bristle
Association "Port Captain" for Mystic/Stonington CT
PO of 1985 C-25 SR/FK #5032 Passage, USCG "sixpack" (expired),
Now on Eastern 27 $+!nkp*+ Sarge
Edited by - Stinkpotter on 06/21/2016 06:27:14
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sethp001
Mainsheet C-25 Tech Editor

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814 Posts
Response Posted - 06/21/2016 :  07:27:57  Show Profile
quote:
Originally posted by Bladeswell

Hi Again,

Ok here is my next noob question. My boat has many spider cracks, mostly on the deck but also on the port topsides. My question is do we repair spider cracks for cosmetic reasons or for structural reasons. as in maybe if not repaired it could get worse. And are spider cracks limited to mostly the gell coat or can they go deeper ?
Thanks again.

Bladeswell


I recently tried this same product that Dave recommends above. Works great!


Seth
"Outlier" 1987 Catalina 25 SR/SK/Traditional Interior #5541
"Zoo" 1977 Morgan Out Island 30
"Nomad" 1980 Prindle 16
"Lost" 1988 Catalina Capri 14.2 (sold - yay!)
"Marine Tex 1" Unknown Origin POS 8' Fiberglass Dinghy
https://whichsailboat.com/2014/07/27/catalina-25-review/
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Bladeswell
Captain

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USA
490 Posts
Response Posted - 06/21/2016 :  12:42:05  Show Profile  Visit Bladeswell's Homepage
Hi Again,

Thanks guys. I will pick some up my next trip to WM.


Bladeswell
C25 TR FK Hull #973 1979 L-Dinette. So.Cal.
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Notice: The advice given on this site is based upon individual or quoted experience, yours may differ.
The Officers, Staff and members of this site only provide information based upon the concept that anyone utilizing this information does so at their own risk and holds harmless all contributors to this site.