I took Wednesday of this week off work to try to grease the skids for a solid toe rail installation this weekend. As usual, my ambitions were far in excess of my accomplishments. However, I did make enough progress to keep all this within the realm of the possible.
I spent pretty much the entire day cleaning out the starboard deck to hull joint. It's a really grueling, time consuming, and non-rewarding activity much like grinding bottom paint, but fortunately without the toxic dust. Using a heavy cat's paw (small crowbar) and the biggest screwdriver I could find I pried up the deck to about a 1/4" gap. In some places I could do better, but within 4-6' of the bulkheads it's very hard to lift.
With the deck lifted I slipped in a fairly stiff 1.5" wide putty knife and scraped out as much of the old butyl sealant as I could. The only way to really seal things up would be to scrub it off with mineral spirits, but there's just no way to do that without breaking the tabbing at the bulkheads.
So, I have to be happy that I could remove the large amount of dried / failed sealant, and hope that I get a somewhat decent gasket out of the 3m 4200 I will be pumping in. Perhaps not an adhesive, but a gasket. I expect the seal between the toe rail and the hull / deck to handle the bulk of the waterproofing. I feel confident that while not perfect, I am indeed making things better than they were.
While I was cleaning out the butyl, my Dad was prepping the toe rails by scraping off the old residue and thoroughly cleaning them with mineral spirits. The remaining prep work is as follows:
CS27 Ravat Blog >