Should I use 3m5200 for my new self bailing scupper

[Marcq]

The ping-pong ball type.  Besides putting 5200 into the holes for the screws ?

Marc..

[Mad Dog]

If you have a woodcore transom there is an extra measure you can take to make sure the wood is never exposed to moisture.

Align the scupper and mark the screw holes.  Then drill (with a forstner bit if you have one) the holes to twice the diameter of the screws and a little deeper then the screws will penetrate.  Then pack the holes with epoxy resin putty (micro-ballons or wood flour).  When that cures then remark the holes and drill them to the tap size for the screws you intend to use.  Then you can use a sealer that will hold the screws in place and allow removal if you break one of the plastic housings.  

Its more work but you never have to worry about the chance of rot.  

If the core is not wood no need to go to this trouble but I might consider a sealer that will release the screws in needed.

MD  

[Marcq]

Thanks MD, sure don't want a wet transom anymore, I guess I should do this with all the holes that I will make to attach stuff to the transom, makes sense

Marc..

[Towerboat1]

Never heard of that procedure, but it sure makes sense. CR

[Mad Dog]

Thanks MD, sure don't want a wet transom anymore, I guess I should do this with all the holes that I will make to attach stuff to the transom, makes sense

Marc..

Marc, yes I would use the process at any point you are mounting anything through a wood cored part of the boat. I learned this from the Bateau2 forum.  That's part of Boat Builders Central where Shine did the Flatback restoration.  Most of the members there are building woodcore stitch & glue boats.  The bore and fill process is worth the effort to protect your investment.  

MD