photo sharing and upload picture albums photo forums search pictures popular photos photography help login
Compass Marine How To | all galleries >> Welcome To MarineHowTo.com >> Sealing Deck Penetrations to Prevent Core Rot > #115 Bit - Cut-A-Way of Potted Deck Hole
previous | next
04-Nov-2006

#115 Bit - Cut-A-Way of Potted Deck Hole

This is the cut-a-way of the hole I cored out with the #115 bit. If you'll notice the epoxy potting is a little thicker than with the #654 bit. I don't feel this serves much of a purpose, & both will seal the deck from future moisture, but does require slightly more work in the over sizing of the top hole to 5/16" or what ever size you choose.


When you re-drill your holes, after filling them with epoxy, try and do a better job than I did of centering your bit over the original hole or your deck hardware might not line up again.


This re-drilled hole is off set to the left a little bit. Please be careful when drilling over sized holes as it makes re-drilling that much more difficult. When in doubt mark the center points of all your holes using the deck hardware as a template.

Nikon D200
1/60s f/5.6 at 70.0mm iso100 full exif

other sizes: small medium large auto
share
cary mcdonald 14-Sep-2018 08:42
Obtain thin white cardboard scrap (old greeting card or equiv.). When the stanchon is removed, and the area wiped clean, press an appropriate sized piece of the card board ove the holes, with sufficient pressure (use rounded side of screw driver handle) to deform the cardboard into them slightly, pin-hole penetrate the centers of the raised side of the the depressions; thus making a template for future use. Don't get the sides reversed. Also, you can mark the outside edge of the cardboard in three places onto the deck, for x/y repositioning, and and exact duplication of (proper) original placement.
Paul Roberts 08-Dec-2013 10:12
One additional step I use is to drill and run a tap through the hole based on matching the bolt/screw thread. This will ensure any water that makes it's way through from the top will not makes it way through the thread.
RIck Kane 21-Nov-2008 17:08
One thing you could do to help align the redrill holes would be to mark centerlines on tape beyond the tape that keeps the surface epoxy-free. For a given hole, four pieces of tape to mark two right-angle centerlines. When ready to redrill, use a straightedge to mark the intersection of the centerlines at the center of the original hole.