clinker and caulk

[EASLOOP]

I know that one should not caulk (cotton) the seams on a clinker hull but I have a question about caulking.

Re a 14' 6" clinker dinghy. Where the garboard plank is rebated into the keel, can this particular joint be caulked? and if so what would be the best material.

Look forward to your replies and advice.

John

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[trouville]

Just my opinion but if you have a leak wouldent it be best to clean up the seam then use polysulphide thats flexable and fine under water unlike poyurathen which dosent like damp. Its quick easy and you wont risk

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[Peterduck]

I would have a look at the fastenings to make sure that they are still holding the garboard tightly to the hog, and that some gunge has not crept between the two timbers over the years. Then I would refresh the seam between the garboard and the keel with a hacksaw blade oriented to cut on the pull stroke. This will give a clear path for you to inject the polysulphide mastic that Trouville recommended into. It is important to get the mastic deeply into the slot so that it has a decent grip on the timber. Finally, when you are squeezing the mastic from the tube, run the tube along the seam AWAY from you, pushing the mastic down ito the slot that you have created. If you draw the tube toward you, you run the risk of the mastic just sitting in the top of the groove and not penetrating it. This priciple applies to deck seams as well.
Peter.

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[tim3057]

Can you recommend a place where I can brush up on my terminology? I could do with a handy reference to tell me what deadwoods, hogs, and garboards are - I'm only at the level of stems, stanchions and Sampson posts..

<hr width=100% size=1>Wayfarer Woodie done, now I need a new fix..

 

[Peterduck]

This is a case of reading as much as you can get your hands on to. I would suggest that as you are working on a clinker dinghy, then read John Leather's 'Clinker Boatbuilding' for a start. There are also other books on the subject. I undersatnd that Michael Verney has written one, but I am not familiar with it. Try your local library or the bookshelves at your chandler's. I am still learning after 46 years of 'playing' with boats.
Peter.

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[trouville]

when i last posted hear ,i never dreamed i to would have a 19foot clinker boat!!
It too leaked thats why it was given to me £30 i paid to the cost of the place.
It had been moored alongside during the summer and has damaged planks where she came down on the low key. I cleaned out the "seams"with air and took off 1/2 inch of the damaged planks scarfed in new wood tightened up the rivits on those planks and hay presto shes leak proof!!!
So now next spring im going canal crusing this winter ill remover the low roof add a screen and a canvas sun(rain) shade, a small two burner cooker toilet(bucket) bilge pump float solar panell inverter 12v to 240v--300watts only £15 including p&p Ill use and old 9.9hp outboard plus 1.5hp seagull 60liters fresh water solar shower and tent cover for the night 12watt portable telephone that i can be found.
Luckly i have many bronze fittings cleats bow roller etc etc lets hope next years another heatwave year!

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