Catalina 22 Structural Fiberglass Repair Info Needed

Feb 18, 2021
38
Catalina 22 NA
Hello,
I am new to sailing and purchased a swing keel 1975 Catalina 22 with trailer in September of 2020. The previous owner had the boat for 20 years. He used her in fresh water for day trips on a lake in Pennsylvania. It stayed at the lake in dry storage on the trailer and ready to sail. The mast and sails were dismantled during the winter months and the boat was tarped. For the last 5 years it was not used due to health reasons so it sat at the lake in dry storage under tarp. Due to neglect it had quite a bit of water in it. I removed all the water and did a quick clean up, stepped the mast and was able to take it out about 6 times before winter and she sailed fine. I did not lower the keel under sail as I know it has had zero maintenance for those last 20 years and wanted to avoid any possible keel related problems on the water.
She is now in my garage off the trailer and the learning has begun. There are a some soft spots in the deck that I will eventually get to and lots of the hardware needs to be replaced and or resealed. There are the expected cracks in the gel coat throughout the boat inside and out but overall the boat is pretty solid. I started by stripping all the hardware off including the ports/windows.
Next thing I did was drop the keel and started to remove the many coats of paint and rust. I purchased all the parts to refit the keel hardware including winch, cable, Hose and clamps with ball, the two support castings, the pivoting pin, centering kit, SS bushing for keel, cable attachment hardware, locking bolt assembly and 4 weldments since two of the bolts broke as I was dropping the keel. The two forward bolts snapped even though I soaked them for days with penetrating oil. All of the keel hardware appears factory so not a surprise.
I did see some minor gel coat cracks in the area around the old castings and it looked like some minor surface repair was made at one point going up into the trunk. Inside the hull I removed the fiberglass so I could expose and remove the weldments. I also cut away fiberglass and removed the locking bolt and support strap as it was froze rusty and bent where it made contact with the keel. I also saw that the wood support under the compression post built into the Dinette was saturated with water and rotted, so I cut away the glass and removed the rotted wood as well. Although I never sailed and have no experience I spent lots of time reading and nothing I saw seemed unexpected or out of place for the year of the boat.
Everything went pretty well until it came to removing the weldments. Once I removed the fiberglass to expose the weldments I noticed that one of them (the port forward one) appeared to have voids in the fiberglass around it. I lightly probed the voids with an awl and there were more voids than I wanted to see which appear to be factory. I had a very hard time getting the weldments out. I was able to take 3 of them out mostly by drilling them out but during the process (the one with voids in the fiberglass) has a substantial crack in the fiberglass now that goes up into the trunk about 3 inches or so and needs what looks to me some major fiberglass repair done. I have not been able to find any documentation regarding how to approach this type of damage. I have been told that since it is fiberglass it can be repaired however no one has been able to point me to any documented methods. I have several ideas as to how I would approach but since I lack experience especially with fiberglass I thought this might be a good place to check. Sorry for the long post but wanted to be thorough. Has anyone here ever had to make such a repair? Thanks in advance to anyone that might be able to offer advice!
 

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Feb 21, 2013
4,638
Hunter 46 Point Richmond, CA
Welcome to the forum and congratulations on you new Catalina 22 sailboat!!

If you do an internet search on "repairing boat fiberglass" and "catalina 22 fiberglass repair" you find tutorials on how make these repairs.
 
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Jan 11, 2014
12,752
Sabre 362 113 Fair Haven, NY
A couple of quick comments on your post. First, for problems like yours good clear photos are essential, words are helpful, however as they say, a picture is worth a thousand words. While we're speaking of words, paragraphs are really helpful. Long paragraphs touching on multiple topics are challenging to read and understand. ;)

One question you have is about voids in the fiberglass. Here's where a photo would be very helpful. This could be an issue or non-issue, it is not clear in your description.

Voids between the gelcoat and the underlying glass are not unusual in production boats. They are a result of the manufacturing process and are not structural. When a hull is built (or the interior fiberglass structures) gelcoat is sprayed into the mold and then the glass fabric and resin are applied on top. The glass fabric does not always bend into a tight radius and after being laid up and before the resin has cured, the fabric straightens out and pulls away from the gelcoat. This leaves a void which is not visible until something happens to crack the gelcoat over the void. If this is your problem, then it is only cosmetic.

Take some photos and we'll all get back to you with lots of information and resources.
 
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Feb 18, 2021
38
Catalina 22 NA
Welcome to the forum and congratulations on you new Catalina 22 sailboat!!

If you do an internet search on "repairing boat fiberglass" and "catalina 22 fiberglass repair" you find tutorials on how make these repairs.
Thank you for your reply sail! I have found lots of information regarding repairs to keel related issues as well as the compression post and they have been extremely helpful. The only thing I have not been able to find is specific information for re-glassing and reinforcing that critical area that supports the castings that support the keel. I have seen quite a few threads that recommend avoiding boats that need major structural repairs in that area. To have it done professionally is probably more costly than what these old boats might be worth but I kind of like the challenge.:)
 
Feb 18, 2021
38
Catalina 22 NA
A couple of quick comments on your post. First, for problems like yours good clear photos are essential, words are helpful, however as they say, a picture is worth a thousand words. While we're speaking of words, paragraphs are really helpful. Long paragraphs touching on multiple topics are challenging to read and understand. ;)

One question you have is about voids in the fiberglass. Here's where a photo would be very helpful. This could be an issue or non-issue, it is not clear in your description.

Voids between the gelcoat and the underlying glass are not unusual in production boats. They are a result of the manufacturing process and are not structural. When a hull is built (or the interior fiberglass structures) gelcoat is sprayed into the mold and then the glass fabric and resin are applied on top. The glass fabric does not always bend into a tight radius and after being laid up and before the resin has cured, the fabric straightens out and pulls away from the gelcoat. This leaves a void which is not visible until something happens to crack the gelcoat over the void. If this is your problem, then it is only cosmetic.

Take some photos and we'll all get back to you with lots of information and resources.
Thank you for your advice Dave! I did edit my post hopefully to make it less confusing. I see what you mean but not sure If I made it better or worse. I also added some pics as you suggested. You can clearly see the crack that runs up into the trunk and that is the port side of the boat. You can also see the fresh crack in the fiberglass that runs horizontally just above that forward port side weldment in the pic taken from the inside of the Boat. I also included a pic of the weldment area from the inside starboard side of the boat. The starboard side does not have any major issues.

Thanks Again!
 
Oct 13, 2020
164
catalina C-22 4980 channel islands CA
This guy has some great videos on you tube for weldment repair. Fiberglass repair of you damage is definitly fixable, dont give up. I have the same year of boat. Good luck!

 
Jan 11, 2014
12,752
Sabre 362 113 Fair Haven, NY
This guy has some great videos on you tube for weldment repair. Fiberglass repair of you damage is definitly fixable, dont give up. I have the same year of boat. Good luck!

Ah, so that is what a weldment is. I was wondering, never heard that term before.

Good useful video. A couple things I would have done on this repair slightly differently.

He didn't show it on the video, however he may have cleaned the new weldment off-camera. First wipe it down with mineral spirits and then with acetone. Mineral spirits will do a good job of removing any oil or grease and acetone will remove most other contaminants.

Second I would have roughed the surface with some 80 grit paper. This will provide some tooth for the epoxy and increase the surface area for the epoxy to bond to. After roughing it up, repeat the cleaning process and handle the part with gloves on to reduce the chance of getting any grease or oil on the piece.
 
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Nov 21, 2012
709
Yamaha 33 Port Ludlow, WA
This guy has some great videos on you tube for weldment repair. Fiberglass repair of you damage is definitly fixable, dont give up. I have the same year of boat. Good luck!

Get yourself a GOOD multi-tool. The difference between a Fein and a DeWalt or Milwaukee is night and day. Your wrists will thank you. Rotary disc=dumb.
 
Feb 18, 2021
38
Catalina 22 NA
Get yourself a GOOD multi-tool. The difference between a Fein and a DeWalt or Milwaukee is night and day. Your wrists will thank you. Rotary disc=dumb.
Yes, I have seen his videos and they were very helpful. I have seen quite a few other videos as well. I did accumulate some tools before I started this project including a multi tool and a dremmel. Both worked well for accessing the weldments. My wrists are still pissed off from drilling out those weldments.
 
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Feb 18, 2021
38
Catalina 22 NA
Thank you all for your replies! I took additional pictures to clarify damage. The crack in the fiberglass for the port keel support casting can be seen surrounding the hole for the forward bolt attachment area. It runs up into the trunk and under the hull as well. The crack can also be seen in the picture taken on the inside of hull running horizontally just above where the forward weldment would be located. It doesn't extend into the area of the aft weldment.
I am thinking that the entire area that retains the forward weldment needs to be completely removed rather than trying to patching around what exists now. I would need to re-create the entire recessed area that the casting rests in and the area that retains the weldment.
I would assume that I have to taper much of the surrounding area on the outer hull and trunk to get a good bond and then do the same on the inside of the hull and trunk wall as well, then redrill the hole for the new weldment.
Would it make sense to make a mold to shape that area? I could create a mold let's say 1/8" deeper than needed and apply the fiberglass from the inside forcing it into that mold. I could remove the mold before it completely cures (for a better bond) and glass in that final 1/8".
Is my thinking going in the right direction?
 

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Jan 11, 2014
12,752
Sabre 362 113 Fair Haven, NY
Some of the photos look like cracked gel coat and voids left during the construction process. Gelcoat is not structural. It's primary purpose is to protect he underlying fiberglass and to look pretty.

Nonetheless, cleaning up the area and getting to solid fiberglass is the right way to finish this.