View Full Version : Quick water staining question

05-14-2013, 01:39 AM
I have been working on restoring a 16' redwood strip whaling style canoe (http://i.imgur.com/gpffdcL.jpg) for about four months now. The end is in sight, having completed the exterior with three heavy coats of West system 105/207 and three coats of Epifanes clear varnish, as well as Total Boat bottom paint, seen here (http://i.imgur.com/t4jZlwW.jpg). To gloat, it has come from this (http://i.imgur.com/DqyRkgp.jpg). I now plan on glassing the bottom on the inside with heavy cloth (got a killer deal on some), then painting with Epifanes monourethane buff color for maximum UV protection.

My concern/question is this though: after leaving the boat upside down on saw horses for two days of heavy rain, I made room in our garage and put it in there right side up. I noticed some (what looks like) water stains in a few areas of the inside, primarily on the bottom and along the gunwales. I am now very concerned that water, from just rain (let alone when I float it in a bunch of it) is somehow leaking into the boat. So, should I chalk this up to normal moisture leakage that is to be expected from a 40 year old strip built boat? Did my epoxy coating, varnish, and bottom paint fail? Would cloth, epoxy, and paint on the inside trap whatever moisture leaks through in between and lead to rot? What should I do??

I know pictures are what is key here....I will get some in the morning and post them. In the mean time any advice is much appreciated...kind of discouraged after coming such a long way! Thanks!

05-14-2013, 02:24 AM
She's a nice boat, well worth the effort!

Pictures will help re the water staining problem. Staining round the gunwhales may be due to water that's run down the hull soaking up into the wood when it reaches the edge. On the bottom (inside I presume) is more curious. Again I assume it's recent, post dating the sheathing and sealing of the hull (when was she last upright?) Hard to conceive how this could happen without it having penetrated the hull, unlikely at that must seem. Wiser heads than mine might have better ideas.

Simple bit to answer: yes, sheathing and epoxying the interior will seal in any moisture and lead to rot. Won't cause a problem if the boat is dry and there is no way for moisture to enter the wood. So before sealing (if you decide to do that) you'll have to eliminate any cause of moisture penetration.

Alternatively why not oil the interior. It was built to be used without tons of glass and epoxy. An oiled finish will protect, allow the beauty of the wood to show and allow any moisture that does get in the wood to escape again.

Suppose it depends on where you'll store it and where and how you'll use it.

Gib Etheridge
05-14-2013, 09:48 AM
It may have been condensation.

I would just varnish or paint the inside, I don't think the glass would be an improvement. You'd have an awful time glassing with all of that framing in the way anyway.

05-14-2013, 10:38 AM
Thanks for the replies guys I appreciate them. Here are some pics:

1) Streaking along the gunwale. As Timmo said, it is kind of to be expected as the rain was draining down. This pic is toward the bow, but it is kind of everywhere: http://i.imgur.com/sQpxwVX.jpg

2) Streaking along the bottom of the inside: (This picture also shows the paint color I've chosen) http://i.imgur.com/gkn337h.jpg and http://i.imgur.com/JetvCSe.jpg. The staining seems to be isolated to the ribs....is it possible the ribs guided the water down into the boat from the gunwale and did the staining? I think unlikely because the water would have to travel upwards but who knows.

3) Just to see what you guys think, I got my Spartan mount in the mail yesterday and clamped it on to see how she fits: http://i.imgur.com/ctR9Khg.jpg. I also reinforced the crap out of the stern, do you think this will suffice? It is a bit messy still after the epoxy work: http://i.imgur.com/Cbely96.jpg

Thanks again guys, loving this forum!

05-14-2013, 10:43 AM
Oh and I plan on using epoxy on the inside because there are so many gaps to fill. The old glue or caulking or whatever the guy used to hold the strips together is cracking in places. I plan on using cloth only on the very bottom, and only along the inside of the ribs. I would like to try and minimize bottom flexing so the epoxy on the outside doesn't crack....which I think it may have already done, thus the water leakage.