Filling below waterline screw holes.

Bill D.

Crazy Old RO
Member
Joined
Jan 1, 2000
RO Number
150
Messages
1,216
Removing some transducers. In years past I've used MarineTex to fill holes. It's been at least 14 years since I've needed to do this. Is there now a better product for the job?
 
MarineTex is fine for screw holes or some West Epoxy with filler.
 
Not trying to hijack the thread...
I've got a number of screws screwed into my swim platform. Not holding anything, just filling holes where something used to be, maybe a dinghy davit system.
I've never used Marine Tex. Would the white be a good filler for these holes and since they are fairly small, no painting or gel coat would be needed. Even if it wasn't a perfect match, it has to look better than all those screws, at least a dozen.
 
I would think so. I've had good luck with it in years past. Unless someone has a better product I'll be using it on this job. I've used it both above and below waterline. It's a little more white than my gelcoat but that does not matter to me especially since holes are small.
 
MarineTex works great but it's tough as a rock once cured. Work clean...wet a plastic squeegee with water for your final pass and you'll get a really smooth finish.
 
Too late for you now - barn door is already closed, but in future - I "Never" drill holes in fiberglass. Screws simply don't hold well and the working of the screw in the glass causes leaks with the associated problems.

I cut a piece of hardwood - for a transom mount transducer, maybe 3" x 5"; big enuf to give a good, solid mount - and epoxy it to the glass, then mount my item to the hardwood. Be sure to pre-drill the mounting screw holes. It's easy to fair it into the bottom. It's a good idea to paint it and seal it as well, since it will rot and eventually need replaced. Paint delays that.
 
quote:

Originally posted by onthecreek

MarineTex works great but it's tough as a rock once cured. Work clean...wet a plastic squeegee with water for your final pass and you'll get a really smooth finish.





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RWS
 
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