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Old 19 March 2010, 04:50   #1
Country: Croatia
Town: Split
Make: Bat Italia
Length: 4m +
Join Date: Mar 2010
Posts: 4
What is it made off?

First of all I want to say hello to everyone, and that i am very glad that I`ve found you.
I have a problem and hope that you`ll help me.

I`m planing on restauration of tubes on my rib with SRC tuff coat. The rib is BAT Italia,
4.5 meters long, fiberglass hull, produced in 1989. I need to know what is the material, the tubes are made off, because it`s not the same procedure of aplying the tuff coat on hypalon or on to PVC.
Now, what I can tell you is, that there is a patch, suporting joints, that`s little worn out and I can see the layers.
From top layer(outside), to under layers(inside):

1st. A very thin, strechy, almost like a kondom, orange layer that peels off if I pull it a bit harder.
2nd. Little thicker than first one, also orange. Can not be peeled off that easily and sticks to a cloth that`s under it.
3rd. A cloth.
4th. Like a black rubber.

I can`t be sure if there is any more layers, but that is all I can see.
From what i`ve heard, it`s a hypalon. Is it possible that it`s Pvc? I must be 100% sure, hope you guys will help me.

I`ve send an Email to BAT Italia, but i guess they didn`t find any reason to answer me !

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Old 19 March 2010, 07:29   #2
Country: USA
Town: Windsor CT
Boat name: Blue Moon
Make: ribcraft 6.5
Length: 6m +
Engine: 150 hp honda
MMSI: 338051172
Join Date: Apr 2007
Posts: 139
Welcome to Rib Net.
Sounds like what you have is hypalon. The black layer is neoprene rubber. PVC would not have that.
Good luck with your project.

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Old 19 March 2010, 11:22   #3
Country: UK - Scotland
Boat name: Wildheart
Make: Humber/Delta Seasafe
Length: 5m +
Engine: Merc 60 Clamshell
MMSI: 235068449
Join Date: Apr 2007
Posts: 4,539
Hello and welcome!

I wonder if your #1 layer is paint? Mine was painted long ago, and in places it flakes off (like old paint on a wooden window frame), in others, it peels off in sheets, like you describe.

Have a close look at a joint / seam. if the top layer seems continuous, you probably have Hypalon paint on there. If applied properly it should fuse to the hypalon below, if not (like mine) it will probably peel off like you describe.
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Old 19 March 2010, 15:17   #4
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Old 19 March 2010, 17:35   #5
Country: Croatia
Town: Split
Make: Bat Italia
Length: 4m +
Join Date: Mar 2010
Posts: 4
Iīve checked out. The top coat is definetly not a paint job. Itīs a piece of fabric.
If I start to peel it off, near the joint and continue peeling in direction of a joint, it goes in between two sections of the tubes, where they are glued.

Come on guys, I need to be 100% sure ! Post, post...
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Old 19 March 2010, 18:53   #6
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Country: UK - Channel Islands
Town: jersey
Boat name: Martini II
Make: Arctic 28/FC470
Length: 8m +
Engine: twin 225Opti/50hp 2t
MMSI: 235067688
Join Date: Jun 2005
Posts: 3,018
Must be Hypalon with the usual fabric layer for strength in the middle and neoprene inside layer to keep the air in.

But if you can see all the layers I'd say you need new tubes not a coat of paint
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Old 22 March 2010, 06:31   #7
Country: Croatia
Town: Split
Make: Bat Italia
Length: 4m +
Join Date: Mar 2010
Posts: 4
I can see layers on a piece of patch, that`s worn out. The tubes are not in that bad condition. Thanks for the answers.

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