Kevin, I keep this in my maintenance file. I just copy and paste to emails. I just overbored and filled my cockpit coaming for some new winches using the method below.
Here's the soup to nuts way to best protect your boat if the penetration is through cored deck. If it's not cored, just do the chamfering. 1. Remove and mark all hardware as to location and orientation (i.e, port, forward, etc.) 2. Overbore each hole 1-2 drill sizes larger. 3. Tape underside or stick some Play Doh in hole 4. Mix a batch of West Systems epoxy with SLOW hardener. 5. Inject epoxy in hole with syringe. Insert tip of syringe to bottom of hole and inject epoxy from bottom to completely fill hole. Wiggle the tip of the syringe around a bit to ensure good coating of hole. Then suck the epoxy out. Repeat for each hole. Alternate method: use a Q-Tip to coat the hole. 6. If the epoxy hasn't begun to really kick, mix in some thickener, West Systems 403 or 404, thouroughly mix and inject into each hole as in No. 5 above. Allow to cure. 7. Redrill holes using hardware as template. If rebedding genoa tracks, enlarge the holes in the backing plate because they probably won't line up. 8. Using a cone shaped grinding stone in a drill, chamfer the square edge off the hole at the deck. This will let the caulk form a gasket around the bolt at the deck. 9. Rebed with 4200, 4000UV or Lifeseal. Just before bolt or screw bottoms out, back it off and retighten a couple of times. This will coat the fastener with caulk at the deck. If a bolt, tighten to just short of fully tight. Allow to cure 24 hours. 10. After cure, have a helper hold the bolt from turning and fully tighten the nut. If you're doing handrails and they're screwed in from underneath, it might be better to overbore 1 drill size and simply coat with unthickened epoxy. It will be difficult to match the angle of the hole when you rebore. Also chamfer the hole in the handrail. Dennis C. Touche' 35-1 #83 mandeville, LA On Fri, Aug 8, 2014 at 10:41 AM, Kevin Driscoll via CnC-List < cnc-list@cnc-list.com> wrote: > Happy weekend all, > > > > I am going to start re-bedding some hardware on our boat. I’m going with > butyl tape, but wanted to see what folks were using for “filling and > drilling” holes in the deck/core with epoxy, etc. Is *Git Rot* > appropriate for this job? I am looking for something easy to work with for > when I have a spare hour or two, i.e. less mixing/disposing cleanup the > better. > > > > Send suggestions and / or links to YouTube videos or other “How To” sites. > > > > Thanks, > > Kevin > > 30-2 > > PDX > > > Kevin Driscoll > Portland, Oregon > 503 // 875 // 3493 > > _______________________________________________ > This List is provided by the C&C Photo Album > > Email address: > CnC-List@cnc-list.com > To change your list preferences, including unsubscribing -- go bottom of > page at: > http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com > > >
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