Holes in fiberglass...

nitsuj

Chief Petty Officer
Joined
Jul 22, 2003
Messages
483
I'll start by saying I know how to fix holes in fiberglass the "right" way. But I have a few holes I want to fix the quick way.

The 1967 Johnson Surfer I bough has quite a few accessories that previous owner bolted into various places in the hull. The obsolete King Loran antennae for one thing. There was also something else mounted on the hull right infront of the windshield. Not sure what it was, but he just left to bolts sitting in the holes. No nuts, no sealant. Just 2 bolts sitting there. And the holes go through into the glove compartment. I'd like to remove the King Loran, and seal the holes and also seal up the 2 bolt holes above the glove box. What can I use that will seal and look decent? I don't feel like glassing it in. I'll settle for a good looking repair and not an invisible one. Thoughts?
 

thrillhouse700

Senior Chief Petty Officer
Joined
Aug 5, 2009
Messages
778
Re: Holes in fiberglass...

Is anything going to be mounted to those holes later? If not II would suggest marine tex, bondo glass, or oops super duper peanut butter. Do a search for oops thread. Just grind out the holes so theres no cracks, then bevel the edges and fill them. If they are big holes then your gunna need to glass.
 

jonesg

Admiral
Joined
Feb 22, 2008
Messages
7,198
Re: Holes in fiberglass...

A bullet shaped grinding stone in a dremel will make quick work of those holes, if you don't do this step you'll end up with a dirt ring.
I must have 100 of those to do on my boat...one day.
 

mike64

Lieutenant Junior Grade
Joined
Apr 10, 2008
Messages
1,042
Re: Holes in fiberglass...

If the holes aren't too big, a real quick and easy way would be 3M 4200 marine sealant. Marine Tex is probably a better solution but I don't know how quick that cures. 48 hours curing time and no mixing for the 4200.
 
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