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Old 30 May 2012, 07:39   #11
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Okay so I got some acetone to test whether or not the boat is PVC or Hypalon.



After going through the bag of stuff that came with the boat I found some pieces of fabric, not sure what was what but the 2 were very different in look and feel. So I decided to use these off cuts to test which was which, the red piece was identical to the fabric that the boat is made of, one side was read and the other was black. The other piece of fabric was black and shiny on both sides, I think this one is PVC.

So I laid them next to each other and applied some acetone to a rag and rubbed them both next to each other.



After some rubbing the fabric on the right became grippy and the cloth took on some of the black colouring of the fabric, the fabric on the left (which is identical to the boat) did not become grippy it just became cleaner. Afterwards there was a finger mark from the rubbing left on the black fabric however the red fabric was smooth and unmarked.

In conclusion I think the boat is Hypalon. I then rubbed some acetone on one of the tubes and all it did was clean it, didn't make it tacky to the touch.
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Old 30 May 2012, 07:39   #12
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I found this gauge in a box anyone know where I can buy the end fitting to fit the zodiac valve?

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Old 30 May 2012, 07:40   #13
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What is this piece for? Couldn't figure out where it went? Under the bow?

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Old 30 May 2012, 07:41   #14
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This is the seam at the front of the left tube.

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Old 30 May 2012, 07:43   #15
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Here's the transom, lots of work to be done here!

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Old 30 May 2012, 07:43   #16
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Floor coming away too, more glue, more glue!

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Old 30 May 2012, 10:35   #17
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I can say with almost 100% certainty that your boat is PVC. The acetone wipe rubbed off some color on the red material (the same as the boat) and did not do much to the black material. That is what you would expect. The acetone, since it flashes off fast, doesn't do a very good job of softening the PVC like MEK does. This is why serious repairs should be properly prepped with MEK IMO. Here is a link to the proper steps to take to use PVC two part glues. Information From ShipStore.com | Zodiac Inflatable Boat Fabric Glue and Repair Instructions | GLUE from the ShipStore.com on-line catalog. Don't underestimate the need to remove all of the old glue. Glue will not bond to old glue.

Another way to indentify the fabric type in this case is by looking at the seams on the tubes. I bet they are thermowelded. You can tell by the way the fabric has a hot melt edge around the areas where the seams were pressed together. If the tubes are thermowelded then the boat is PVC. The floor seams, the transom seams and the speed tube seams are all hand glued. These are the places that fail over time.

If you prep properly and observe the correct environmental parameters you can get a really strong bond. My Zodiac was in terrible shape. It had had some repairs and it was not possible to fully disassemble without damaging the fabric, so I reglued any floor seams i could work apart and reglued the majority of the transom. These repairs have lasted for years and show no sign of failing or leaking. Whether I should have just bought a new boat is debatable. But I had the time and developed the skills.

I'm sorry I missed your PM. I don't log in too often. I'll try to pull up some pics for you. Anything in particular you are interested in?

The best advice I can give is good prep and go slow when gluing. I would glue one side of the floor joint, then the other. I reglued my transom in multiple steps. I turned, flopped, strapped and actually stretched my boat so the every glue step ended with a nice easy lay down into position. No tugging, no pulling, no stress on the uncured seam at all. Be methodical.

Some will debate the real need to use MEK rather than acetone to prep for a bond. But if you try MEK and feel the result on the PVC surface compared to an acetone wipe you will see why I don't even consider using anything else. Remember, you are going to be in a hot climate. Don't mess around. You want the best bond possible.
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Old 30 May 2012, 14:15   #18
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Looking at the pics I am going to say that boat is in bad shape. The left seam you show looks toast. The transom material looks like it is no longer serviceable. How is the wood?

I cleaned with acetone and prepped with mek. Lots of scuffy pads were used, and I dang near wore out a pair of chemical gloves.

If you are going to take the time to repair the boat make sure it is going to be usable for years to come, or it is not worth the time and money invested. If you need a motor And trailer it might just be worth finding a complete package. Sorry I just don't want to see you waste your time.
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Old 30 May 2012, 19:09   #19
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Quote:
Originally Posted by Peter_C View Post
Looking at the pics I am going to say that boat is in bad shape.
It looks worse than it is, wait until I clean it all up and take some quality pics, the phone pics definitely make it look worse than it is.

Quote:
Originally Posted by Peter_C View Post
The left seam you show looks toast.
Why? Because of the frayed strands running along the seam edge? Does this mean it's 'toast' ? The seam is strong, apart from the frayed edge it is not lifting at all and is definitely not 'toast'.

Quote:
Originally Posted by Peter_C View Post
The transom material looks like it is no longer serviceable.
The transom/floor material may be beyond help, it feels brittle and is quite faded. I will remove the floor material and will assess it then.

Quote:
Originally Posted by Peter_C View Post
How is the wood?
The transom wood is in good shape, no sign of soft spots, no sign of rot, it is dry and is in good shape.

Quote:
Originally Posted by Peter_C View Post
If you are going to take the time to repair the boat make sure it is going to be usable for years to come.
Once I am finished with it, it will be usable for many years to come.

Quote:
Originally Posted by Peter_C View Post
might just be worth finding a complete package.
That sounds REALLY boring, that's not how I do things!

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Originally Posted by Peter_C View Post
Sorry I just don't want to see you waste your time.
Time is something I have plenty of, and while I'm fixing this boat I don't see it as a waste, more enjoyment than anything else. I know it looks rough now but it is definitely fixable and I look forward to working on it.

Cheers.
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Old 30 May 2012, 19:26   #20
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Quote:
Originally Posted by kelson View Post
I can say with almost 100% certainty that your boat is PVC.
Thanks for that, can someone else confirm 100% what it is made of? Need to get this right so I buy the right adhesive. ?

Quote:
Originally Posted by kelson View Post
The acetone, since it flashes off fast, doesn't do a very good job of softening the PVC like MEK does. This is why serious repairs should be properly prepped with MEK IMO.
Looks like I will be getting some MEK because acetone really didn't do anything to soften the material.

Quote:
Don't underestimate the need to remove all of the old glue. Glue will not bond to old glue.
I will be meticulous here. All of the old glue residue will be removed.

Quote:
Whether I should have just bought a new boat is debatable. But I had the time and developed the skills.
Some like to work with their hands and get them dirty, others prefer not to. Each to their own.

Quote:
The best advice I can give is good prep and go slow when gluing. I would glue one side of the floor joint, then the other. I reglued my transom in multiple steps. I turned, flopped, strapped and actually stretched my boat so the every glue step ended with a nice easy lay down into position. No tugging, no pulling, no stress on the uncured seam at all. Be methodical.
Thank you for the advice, will take on board when carrying out the repairs.
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