Sealing old screw holes in the transom

[Mike Stark]

im going to try and mount a new transducer on the transom of my boat. there will be old screw holes from the old ducer.

what can i use to fill in the holes?

[remington 300]

just put some silicon on the old screws and put'em back in

[leech~~]

just put some silicon on the old screws and put'em back in

Plus 2+

[Cliff Wagenbach]

Originally Posted By: remington 300

just put some silicon on the old screws and put'em back in

Plus 2+

plus 3 but I suggest that you use a marine grade silicone.

Cliff

[BoxMN]

We use the waterproof pop rivets, you can get at your boat dealer. We also slap some silicone on them as well, while we are at it. However, we also have just use silicone on the holes, no screws or rivets at all, and that held up for about 4 years, and probably would have gone longer but we slapped waterproof rivets in - we were just testing the silicone - it lasts a long time, and no leaks at all (total of about 12 holes, had early Bottomline side finders on at one time...).

[3pronghook]

if its a metal transom use some metal putty.

[Mike Stark]

thanks. can you get marine grade silcone at a hardware store?

[S.D. Ice Angular]

thanks. can you get marine grade silcone at a hardware store?

+4,

On the silcone and put the screw back in idea.

And

Yes, You should be able to get Marine Grade Silcone at any Ace, Fleet Farm maybe even Lowes, Home Depo or Menards

[leech~~]

We use the waterproof pop rivets, you can get at your boat dealer. We also slap some silicone on them as well, while we are at it. However, we also have just use silicone on the holes, no screws or rivets at all, and that held up for about 4 years, and probably would have gone longer but we slapped waterproof rivets in - we were just testing the silicone - it lasts a long time, and no leaks at all (total of about 12 holes, had early Bottomline side finders on at one time...).

BoxMN, riveting and sealing would be a really good idea if you have holes all the way through the hull, but it sounds like he just has some screw holes not all the way through that need filling. So, silicone with or without screws should work.

[Mike Stark]

actually the holes are all the way through the transom.

[leech~~]

actually the holes are all the way through the transom.

Mike that is a little detail that would have helped up front for everyone. If they are all the way through the hull I think that I would use sealer and put some stainless steel bolts back in or the rivets like BoxMN suggested.

[marine_man]

I'd put some sort of fastener in there to support the silicone instead of plugging as large diameter of a hole.

Bottom line - poor sealing / improper sealing will lead to a wet transom, which eventually leads to a rotten transom.

marine_man

[walleyemaniac]

JB Weld, sand it smooth, shot of paint. Never know they were even there.

[Steve Foss]

JB Weld, sand it smooth, shot of paint. Never know they were even there.

+1! Best stuff known to God and man.

[Mike Stark]

thanks guys....i will give that a shot.

[Northlander]

After you have it all sealed up MIke I would then put a plastic mounting board over that area or at least on the area you want to put the new ducer. It will save holes in the transom later on down the line. You can get them at better sporting good stores and marine dealers.

[Mike Stark]

thanks northlander. i have been hearing that a lot. i had never heard of the mounting boards. great idea.