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Old 16 April 2006, 11:04   #11
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Thanks

I'm puzzled now.... this morning it is still "up"!

but the previous day it definitely went down quite a lot (not just due to ambient temp changes as I was comparing the tubes side to side and the suspect one was harder one day and a lot softer the next) so I don't know what to think now

Some suitable Hypalon glue is something for the shopping list when I'm over there in a couple of months time... I will write "Bostik 2401" on the list right now, thanks, is it like an Evo-Stik contact adhesive or what?
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Old 16 April 2006, 15:04   #12
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Originally Posted by Rogue Wave
Bostic 2401 is the 2partstuffto use. ifyou can#t get then Hanshaws might beable tosupply someforyou. or inflateable boat supplies
I was talking to my boat builder, who uses 2401. He said that the second part of 2401 is actually not an acellerant or hardener (though I don't now recall what he said it was supposed to do.) He supplies a can of repackaged 2401 in his repair kit, which he says is on eof the 2 parts. Seems to work fine.

I have yet to find anyone in the US that carries Bostik's hypalon adhesives.

jky
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Old 16 April 2006, 15:07   #13
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Originally Posted by BogMonster
Thanks
I'm puzzled now.... this morning it is still "up"!
Is the wife happy about that?


Quote:
but the previous day it definitely went down quite a lot (not just due to ambient temp changes as I was comparing the tubes side to side and the suspect one was harder one day and a lot softer the next) so I don't know what to think now
Could be that a bit of sand or other foreign material managed to get into the sealing parts of the valve. I've had this happen before on the Achilles; thought I was going to have to spend a few hours looking for a leak, only to have the problem go away after purging a bit through the valve.

Anyway; good luck, and I hope the leak doesn't return;

jky


Some suitable Hypalon glue is something for the shopping list when I'm over there in a couple of months time... I will write "Bostik 2401" on the list right now, thanks, is it like an Evo-Stik contact adhesive or what? [/QUOTE]
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Old 16 April 2006, 16:44   #14
exspyrd trayd membir
 
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Originally Posted by Rogue Wave
Bostic 2401 is the 2partstuffto use.
oy fatt fingirs

itts boztik 2402 orr faylin dat 2990

duf infawmashun agen

dem royul mareen bastuds wil av sum inn de staws butt de stawman wownt giv yew eny. heel saiy fuk orf, staws arr forr stawrin nott givin owt

gArf
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Old 17 April 2006, 16:32   #15
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oops I was tired
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Old 17 April 2006, 17:18   #16
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Damn thing is half flat again today

I give up. It is coming out of the water at about the end of the month anyway.
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Old 18 April 2006, 05:41   #17
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You are going to have to go over it carefully with soapy (washing up liquid) water.

I have found that wiping a film over the valves with a finger will reveal any unclosed valves (as a large bubble will be blown) - do you have pressure release valves - or just the inflate / deflate valves - jky is right, often foreign body will prevent a perfect seal in the valve - usually just tapping it with your finger causing a short sharp burst of air to be released will clear it out.

If its not valves then you will have to cover the whole thing in soapy water and look for the bubbles being made - they will be fairly obvious.
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Old 18 April 2006, 05:57   #18
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Quote:
Originally Posted by roycruse
You are going to have to go over it carefully with soapy (washing up liquid) water.

If its not valves then you will have to cover the whole thing in soapy water and look for the bubbles being made - they will be fairly obvious.
This method is most effective when carried out by a topless young lady.
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Old 18 April 2006, 07:23   #19
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Quote:
Originally Posted by roycruse
You are going to have to go over it carefully with soapy (washing up liquid) water.

I have found that wiping a film over the valves with a finger will reveal any unclosed valves (as a large bubble will be blown) - do you have pressure release valves - or just the inflate / deflate valves - jky is right, often foreign body will prevent a perfect seal in the valve - usually just tapping it with your finger causing a short sharp burst of air to be released will clear it out.

If its not valves then you will have to cover the whole thing in soapy water and look for the bubbles being made - they will be fairly obvious.
The odd thing is it was fine for 24 hours and I haven't touched the valves since, so nothing should have got in to the valves to suddenly make it go down, and I can't see how a hole would be intermittent, it should either be a hole, or not a hole.

Even more strange when I looked closer is that three out of the four main chambers have done it, the fourth one is still hard, just as I left it...

I shall attempt to persuade a nubile young thing to assist me in the task when I get it out of the water but I think it is probably a bit cold for bikini weather now
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Old 18 April 2006, 09:40   #20
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Quote:
Originally Posted by BogMonster
The odd thing is it was fine for 24 hours and I haven't touched the valves since, so nothing should have got in to the valves to suddenly make it go down, and I can't see how a hole would be intermittent, it should either be a hole, or not a hole.

Even more strange when I looked closer is that three out of the four main chambers have done it, the fourth one is still hard, just as I left it...

I shall attempt to persuade a nubile young thing to assist me in the task when I get it out of the water but I think it is probably a bit cold for bikini weather now
You aren't filling it with warm air at the hottest time of the day are you? Bet it's not that warm anyway but could it be expansion/contraction rather than a leak?
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