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Old 25 August 2011, 20:14   #1
jvb
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searider 5.4 - hole in tube below waterline

dear ribbers,
i have a serious problem with my searider 5.4 tube.
it all started with the "fenders" (dont know the englich word. i mean the 3 attached built-in-fenders running alongside the tubes) on the sides peeling off at the rear 20 centimeters.
i glued them back with hypalon glue but they would peel off again after a couple of minutes on the plane.

then i started adding patches to the under water areas because a strip ( goes all around the transom area of the tubes ) was starting to peel off too - obviously due to the "fenders" missing.

last episode is that then all patches fell off and the tube now also has a 1cm hole below water. damnit

i am clueless what i did wrong.
i cant get any patches glued on lasting longer than an hour in full speed.
i have properly sanded the tubes and the hypalon patches too.
i have used 2 component hypalon glue from polymarine.
i have cleaned the surface with acetone.
i have tried to add as much pressure to the patch as possible in semi-inflated state.

yet the remaining glues sticks only to the tubes - the patches are washed away.

what am i doing wrong???

please help, i am sinking!

thank you,
jan
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Old 26 August 2011, 02:42   #2
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What glue are you using?
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Old 26 August 2011, 04:20   #3
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Erm... Quote: 'two part glue from Polymarine'
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Old 26 August 2011, 04:25   #4
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Check the expiry date on the glue
Do you have access to Toluene?
Check humidity, this can seriously work against you.
Are you using two coats?

If the humidity is high the glue will condensate and the bond will be weak, try using a heat gun to gently warm the fabric and then each layer of glue.
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Old 26 August 2011, 06:09   #5
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There is plenty of force on the tubes in that area, can be seen from ther water spray. I would not recomend continuing usage of the boat if anything even slighly loose there, water spry wil easily increase damages.

I had also som wear and tear on the same parts, staring to peel of. I used Rema tiptop
sc2000 and it works briliantly, can highly recomend it. When on fabric you need to work pretty fast but otherwise very good stuff IMHO, easy preaparation. Price is not bad either as its not a marine product, and exiper dates on the can was years ahead.

REMA TIP TOP - Distribution - Germany - Head Office
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Old 26 August 2011, 06:22   #6
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jvb - just so you know we normally call the "fendering" you refer to "rubbing strake" or "rubbing strip" which should help with searching here on refitting it.

Good luck with fixing the other bits.
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Old 26 August 2011, 07:52   #7
jvb
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thank you guys,
brilliant feedback. this will help me. also thank you for the wording help ;-)
tiptop is a nice idea for big surface problems, right you are.

thank you all!
jvb
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