Teak Cockpit Cap Rail Joint.

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Lucy52

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There is a gap in the corner joint of my cockpit cap rail. The top is about 100 mm wide, the gap about 2 mm wide.

It has let water in and there is a vertical joint that is slightly open, with a gap of about 1mm under the end of the cap rail.

How should I fix it properly before varnishing.

Cockpit Cap Rail 1.jpg

Cockpit Cap Rail 2.jpg
 
Thank you, what type of "caulking" had you in mind?

I was thinking of something that might last, not fall out next year. Not so thick and sticky that you cannot get it into the joint.

Preferably suited to the marine environment.
 
Lucy52 said:
Thank you, what type of "caulking" had you in mind?

I was thinking of something that might last, not fall out next year. Not so thick and sticky that you cannot get it into the joint.

Preferably suited to the marine environment.
Click to expand...

The same stuff you'd use to caulk a teak deck. Different brands are available.
 
Thanks again. I bought some teck deck caulk but thought it might be too stiff and not seal the joint well if it was difficult to get fully in.

CT1. Haha. I considered an epoxy glue or plain polyurethane wood glue, but the adhesion to teak is not great and the joint might crack again.

I notice deck caulk has been used on the main gunwale aft joints and on the hatch garage upstand. So I that will be it.

Thank you both.
 
I would consider Sika 291, which is available in brown and can be over coated with varnish (unlike some types of deck caulk).
 
BabaYaga said:
I would consider Sika 291, which is available in brown and can be over coated with varnish (unlike some types of deck caulk).
Click to expand...

Thank you that's very useful. The varnish doesn't adhere to the caulk very well, in fact the varnish has cracked, probably due to movement, and has let water in. The cockpit coaming would look odd with a black line in one corner. I will look into using Sika 291, brown would be a better colour and is possibly easier to apply.
 
Get a hacksaw blade in the slot and clean up both sides suitable for gluing.
Use teak veneer 1,2or 3 thicknesses depending on thickness of veneer you can obtain.
Mix up epoxy using teak dust to thicken and color, jam epoxy and veneer into slot.
When hard pare away excess with chisel, plane and or sand.

Plank
 
Thank you Plank walker. Cleaning out the joint with a hacksaw blade is a good idea however I fill the joint. I have some sample veneers which came with the "Woodworker" magazine some years ago. They are in a packet in a box, if only I could remember which box and where I put it. Nor can I remember if there was any teak or how long the pieces are.
 
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