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Step 38: The Drippy Consolidation

This episode was one of the most rewarding. It's also one I would do differently in the future.

Since I was working with different species - oak versus cedar - and since both have different mechanical behaviors, I didn't want to take any risk during the consolidation.

It had to be rock solid. And I didn't want tu use nails, screws, plates or pins. This was a full wooden project.

So I went for plugs & glue.

First I screwed the planed gunwales temporay to the hull. Then I drilled a series of deep 14mm holes through oak & cedar for the plugs and I trimmed the side of the gunwales. Small details, but they count. Then I poored the glue in and smashed the plugs to consolidate.

Those plugs pushed the glue through the multiple fissures in the hull, which added structural strength.

It didn't expect the glue to drip everywhere all around. It didn't expect it's behavior too.

In fact, for this purpose I had bought an industrial grade wood glue. A 'polyurethane' glue. At first use I was happily surprised about it's behavior. Viscuous, transparant & very sticky. After a few minutes this alien turned white and started to expand. Of course it filled all those fissures, but since I'd been very generous it gave sooky the looks of a guano island. White stripes all over it, pure horror.

I learned there are four types of glue: the organic ones (made from plants, rawhide or fish), the white ones (style elmers glue), the polyurethanes (which expand in contact with air) and the polymeres (which give kinda rubber joint between the glues pieces).

In the future, I'll stick to the first two. Intelligent building, few glue and a decent waterproofing at the end.