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Old 22 March 2020, 13:42   #1
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Blisters

I was doing a bit of general cleaning today, and making notes of what needs to be done to The Nashers Revenge in order to get her out of a long layup and back on the water.

I've been keeping an eye on her, uncovering her and keeping the tubes topped up at least every two weeks.

Today I noticed something I've not seen on Hypalon before, some blisters as shown below. They have formed over the last two weeks.

Both the patches of blisters are on the inside of the two tube end cones, and are in a place where the cover fits tightly.

The tubes are the original 1996 ones, but although slightly scruffy now in places hold air very well indeed with just one valve that leaks slightly, but over a two week period only requiring a few strokes of a hand pump on that chamber to get it back up to pressure.
They have always been kept covered by myself and the previous owner, which is why I think they have survived so long.

The blisters appear to be in just the very top coloured surface layer, and when popped don't contain any fluid or leak any air -tested with a wet finger.

Has anyone seen this before?

Nasher.
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Old 22 March 2020, 19:34   #2
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Quote:
Originally Posted by Nasher View Post
I was doing a bit of general cleaning today, and making notes of what needs to be done to The Nashers Revenge in order to get her out of a long layup and back on the water.

I've been keeping an eye on her, uncovering her and keeping the tubes topped up at least every two weeks.

Today I noticed something I've not seen on Hypalon before, some blisters as shown below. They have formed over the last two weeks.

Both the patches of blisters are on the inside of the two tube end cones, and are in a place where the cover fits tightly.

The tubes are the original 1996 ones, but although slightly scruffy now in places hold air very well indeed with just one valve that leaks slightly, but over a two week period only requiring a few strokes of a hand pump on that chamber to get it back up to pressure.
They have always been kept covered by myself and the previous owner, which is why I think they have survived so long.

The blisters appear to be in just the very top coloured surface layer, and when popped don't contain any fluid or leak any air -tested with a wet finger.

Has anyone seen this before?

Nasher.
Seen them before, there are a few patches like that on my delta I think its caused by moisture trapped between the tube and a cover does the damage
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Old 23 March 2020, 05:48   #3
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found this Nasher


https://www.cruisersforum.com/forums...on-184891.html
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Old 23 March 2020, 07:29   #4
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Thanks both.

It's strange as the cover is in contact with the tubes in a lot of places, but just those two small areas have blistered.
I'm going to have to keep an eye on it to make sure 'The Pox' doesn't spread.

Nasher
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Old 23 March 2020, 10:39   #5
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Thanks both.

It's strange as the cover is in contact with the tubes in a lot of places, but just those two small areas have blistered.
I'm going to have to keep an eye on it to make sure 'The Pox' doesn't spread.

Nasher
I have a little of this on my florida born Nautica , enough when i first had it to consider a retube , at the time i explained to tube people who were quoting , only one person offered an explanation ,Ed (who i dont know ) at ribtube suggested instantly that the EOL hypalon made by ***** was poor and this was the reason for a failure of this type ,mine made me think it had been spay painted with swim pool paint as a cover up before i bought it , my nautica is 2012 so not that old
I found out with research that Dupont stopped making hypalon in 2010 ,and after this many others came to the party , some doing a bettter job than others , mine seems to bubble under what is a non breathable cover , google eol hypalon ,mine does not leak but of course the blisters fall offf revealing weave underneath
Maybe it helped send Nautica skint in 2013
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Old 23 March 2020, 11:04   #6
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Thanks.
It does seem really strange that the rest of the tubes are not affected(yet) when the cover touches such a large area.

I’m happy that the quality of the Hypalon is good having lasted so well, they are 24yrs old after all, and still hold air really well.

One job I will do over the next few weeks is to give them a good scrub and maybe treat them to some conditioner for the first time in about 10 years.
Last time I did it I used quarry tile sealant, which a lot of people used back then, but availability of proper stuff has improved since.

I don’t really want to re-tube her for a couple of years yet having just spent out on a new(to me) engine.
And I also need to throw a couple of new axles under the trailer.

Nasher
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Old 23 March 2020, 12:40   #7
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^^^ great news about the engine, what did you get Nasher?

Blisters in hypalon is a new one on me.
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Old 23 March 2020, 14:33   #8
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Your post prompted me to go take a look at my delta as I thought I'd seen similar on her tubes and yes there are some patches with similar blisters when pressed with a finger nail they contain water. Very similar to osmotic blisters in fibreglass no idea if it is caused by osmosis but I guess its possible . I doubt a boat like a delta has anything but the best of products used in its build so don't buy the quality of materials theory.
The down side is if you abrade them they come off and leave spots down to the canvas below
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Old 23 March 2020, 15:25   #9
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great news about the engine, what did you get?
I've put a deposit down on a low hours 225 Optimax.
Am hoping I'll be able to collect it some time soon, but that will probably depend on what Boris says this evening.
I can't fit it for a couple of months, but want to get it secure in my garage.

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Your post prompted me to go take a look at my delta as I thought I'd seen similar on her tubes and yes there are some patches with similar blisters when pressed with a finger nail they contain water.
The Blisters on my Ocean are dry inside.

Nasher
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Old 24 March 2020, 09:19   #10
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I had these on my 1997 yellow Scorpion tubes in a few places.

The top layer of the hypalon was also very soft and would wear off if a rope was dragged over it.
I always knew that I would be renewing tubes and did so in about 2014.

You'll like the Opti!
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Old 25 March 2020, 03:04   #11
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Nasher, I have some yellow hypalon offcuts that came with Hot Lemon if you need some patches.
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Old 25 March 2020, 05:05   #12
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Nasher, I have some yellow hypalon offcuts that came with Hot Lemon if you need some patches.
Hello Mate, that would be fantastic.

Put them by for me, we'll arrange when I can get up to you and what I owe you.

Nasher
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Old 25 March 2020, 18:15   #13
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No charge ! Let me know rough sizes you need and I’ll look in the morning. Plenty of time theses days!
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Old 27 March 2020, 16:59   #14
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I’ve seen blister and delaminating on yellow ribs. I’m sure other colours do to
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Old 27 March 2020, 17:18   #15
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Iíve seen blister and delaminating on yellow ribs. Iím sure other colours do to
Thats surprising ,mine is white ,so it would appear maybe the most reflective colours are more succeptable ?
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Old 28 March 2020, 05:05   #16
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Iíve seen blister and delaminating on yellow ribs. Iím sure other colours do to
Now you mention it, the only time i've ever seen this was on a yellow Humber
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Old 29 March 2020, 16:25   #17
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I've put a deposit down on a low hours 225 Optimax.
What year? Might have some odds and bits lying about
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Old Yesterday, 03:48   #18
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Now you mention it, the only time i've ever seen this was on a yellow Humber
My delta has it and its red!
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Old Yesterday, 06:22   #19
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Had a yellow scorpion that had it. Henshaw mentioned it was common on yellow scorpions
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