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Fully bonding in Transom

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Old 12-05-2013, 12:29 PM
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Where did you have it done? And how bad did you get raped? I have had 2 bad experiences with glass guys...which ended up costing big $
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Old 12-05-2013, 02:29 PM
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he made right, and offered to fix but i want to do it myself.
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Old 12-05-2013, 03:22 PM
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damnit now you have me thinking i might be able to fix it lol. I just wanna cut the ****ing hole and drop the motor in!!
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Old 12-05-2013, 05:28 PM
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Cut the hole and see how good the lamination is. Wherever there are bolt holes you can drill them and thru bolt them to such the outer skin in and make a better bond.
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Old 12-05-2013, 07:22 PM
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Originally Posted by sparky24
What is the proper way to bed in a transom so that this doesnt happen:

Ive seen some use mat others use thickened resin not sure what they thickened it with though.

Any help appreciated





This famous guy with the searay on youtube uses cabosil chopped glass and resin: video of him speading it out at about 9 minutes in to the video. Is this the best way???

http://www.youtube.com/watch?v=w5DaQvwTY3I
I just came from one of Canadas best boat builders and we were discussing this. I'm not an expert but I'll try and repeat what he said. Based on your photos you need to strip off the gel on the floor and the stringers a little way forward from the transom because you cant bond to gel. Then sand/scrape all wood off the transom until you only have the outer shell. Then install new glass using a special resin that will bond to old glass. (I forget the name) then install your sealed plywood (baltic birch) then start tabbing it in to the stringers and remaining transom. no need to make putty just buy the pre mix and only use it to fill gaps. The keys are don't go over old gel, use the right resin to bond to old glass with new glass then install your wood to that glass and tie it in to the bottom stringers. hope this helps
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Old 12-05-2013, 07:29 PM
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[ATTACH=CONFIG]513733[/ATTACH][ATTACH=CONFIG]513731[/ATTACH]further to my post, epoxy is the strongest but for experts only due to the special curing needs. Your lack of a bond is likely due to glassing over old glass without the correct resin. ill post some pics from today
Attached Thumbnails Fully bonding in Transom-20131205_164736.jpg   Fully bonding in Transom-20131205_164730.jpg  

Last edited by stimleck; 12-05-2013 at 07:54 PM. Reason: photos
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Old 12-05-2013, 09:36 PM
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Im using vinylester resin, it really just didnt get sucked into the fiberglass enough i think, plus maybe the mat was a little too thin for a somewhat uneven/large surface

Last edited by sparky24; 12-05-2013 at 09:39 PM.
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Old 12-13-2013, 09:35 AM
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Where can you get corebond at?
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Old 12-13-2013, 03:55 PM
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Glassdave might sell you some he is right across the border in oh
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Old 12-14-2013, 10:42 PM
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I like to make a thick resin using cabosil on top a layer of mat using a notch trowel spread onto wet mat then bond your core.For the edges fill with resin,cabosil,and chopped strand curving the edges for a good radius then use your biaxial, just my 2 cents
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