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Rivetting into carbon
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mike ellis View Drop Down
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    Posted: 01 Oct 07 at 5:17pm
right, my main halyard cleat on my 600 is shredded, ts so bad i had to tie the halyard to the boom this weekend.  any tips before i go and drill out the old rivetts and get a new cleat? what do you use to isolate the rivets from the carbon? asuming it will corrode unless i put something between the 2.
600 732, will call it Sticks and Stones when i get round to it.
Also International 14, 1318
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Paramedic View Drop Down
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Posts: 929 		Post Options Post Options   Quote Paramedic Quote  Post ReplyReply Direct Link To This Post Posted: 01 Oct 07 at 5:18pm

Duralac works just as well with carbon as with aluminium.

Carbon and Ally react very well togther do don't skimp!
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mike ellis View Drop Down
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Posts: 2339 		Post Options Post Options   Quote mike ellis Quote  Post ReplyReply Direct Link To This Post Posted: 01 Oct 07 at 5:21pm

can you get rivets made from a less reactive alloy/metal?

and where can i get duralec from?



Edited by mike ellis
600 732, will call it Sticks and Stones when i get round to it.
Also International 14, 1318
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Posts: 0 		Post Options Post Options   Quote Guest Quote  Post ReplyReply Direct Link To This Post Posted: 01 Oct 07 at 5:49pm
Make sure you get special carbon rivets they collapse a different way to the normal ones and don't crush the carbon.
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Black no sugar View Drop Down
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Posts: 3941 		Post Options Post Options   Quote Black no sugar Quote  Post ReplyReply Direct Link To This Post Posted: 02 Oct 07 at 3:15pm
And a tough rivet gun! You'll need more muscle power for that than driving a rivet into aluminium.
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Smight at BBSC View Drop Down
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Posts: 1129 		Post Options Post Options   Quote Smight at BBSC Quote  Post ReplyReply Direct Link To This Post Posted: 02 Oct 07 at 6:22pm
Some old 600 sailor at bbsc left the old cleat and just riveted a new one underneath  It's already started to rust
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Merlinboy View Drop Down
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Posts: 3169 		Post Options Post Options   Quote Merlinboy Quote  Post ReplyReply Direct Link To This Post Posted: 02 Oct 07 at 6:52pm
It only reacts in salt water doesnt it??? i thought that the salt water, carbon and alloy created a kind of battery, as for rivet gun get some lazy tongs!
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English Dave View Drop Down
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Posts: 682 		Post Options Post Options   Quote English Dave Quote  Post ReplyReply Direct Link To This Post Posted: 02 Oct 07 at 11:31pm

Originally posted by Merlinboy

It only reacts in salt water doesnt it??? i thought that the salt water, carbon and alloy created a kind of battery, as for rivet gun get some lazy tongs!

Salt water does make things worse as the salt in the water acts as an electrolyte and that helps the galvanic corrosion. Pure water is a relatively poor conductor although throwing a toaster in the bath is still a bad idea. Use dichromate paste in any case - it saves having to replace every rivet if you move to the seaside. Also, with Tewksbury's sewage treatment plant getting flooded the other week ( I used to row at Lower Lode, below the weir as a nipper so I know the area) I'm sure there were lots of electrolyes around .

Forget lazy tongues, get an air gun!
English Dave
Ballyholme Yacht Club

(You'd think I'd be better at it by now)

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mike ellis View Drop Down
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Posts: 2339 		Post Options Post Options   Quote mike ellis Quote  Post ReplyReply Direct Link To This Post Posted: 03 Oct 07 at 6:15pm
why's it so hard to rivet into carbon fibre? whats different from alluminium?
600 732, will call it Sticks and Stones when i get round to it.
Also International 14, 1318
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Villan View Drop Down
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Posts: 1768 		Post Options Post Options   Quote Villan Quote  Post ReplyReply Direct Link To This Post Posted: 03 Oct 07 at 7:03pm
Surley it should be exactly the same?

Drill out old rivet
Slop on some of the anti-corrosion gloop
Put Rivet into Rivetgun
Insert into existing hole in mast, ensuring gloop spreads over it
Pull handle a few times, until a loud *BANG* is heard

Done!

Now turn around, and try it on your own boat!

Good Luck!!
Vareo - 149 "Secrets"
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