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Old 04 April 2012, 15:01   #1
Country: UK - Scotland
Boat name: Wildheart
Make: Humber/Delta Seasafe
Length: 5m +
Engine: Merc 60 Clamshell
MMSI: 235068449
Join Date: Apr 2007
Posts: 4,671
Patch on underside of toobs

I am now on my third attempt at making this thing stick.

Evey time both the area & patch underside have been sanded, cleaned, and the goo applied as per instructions.

I have tried using glue to form a "ramp" to try & deflect water away, I have tried bigger & smaller patches. I guess as that bit of the toob sees the full force of a 20-30 knot water blast I'm going to need something stronger than the usual glue.

The only thing that is any different to any other patch I've put on this boat is that this one is in an area that was once antifouled... I have sanded the area well back, so I doubt there is any left, but then does it or it's base fluid soak into the hypalon and alter the sticking charachteristics?

So, any thoughts?

Do I need a single part glue (would make absolutely sure I had the correct ratio of glue & hardener),
Do I need to make the patch so big it bits up to the join ahead of it to prevent the jetwash effect? (call it a couple of feet)
Can someone recommend a super hypalon glue that is even stronger than the IBS stuff?
Can someone recommend a hypalon glue that also sticks to long dried antifoul?
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Old 04 April 2012, 17:10   #2
boristhebold's Avatar
Country: UK - England
Length: 7m +
Join Date: Aug 2009
Posts: 1,619
Pm sent
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Old 04 April 2012, 21:55   #3
m chappelow's Avatar
Country: UK - England
Town: yorkshire
Boat name: little vicky
Make: avon ex RNLI
Length: 3m +
Engine: tohatsu
Join Date: Mar 2008
Posts: 2,310
pm me your address and ill send you a couple of 3inch large heavy duty tyre patches ,
they have feathered edges so dont pick up with water passing over them and peal off like the normal boat patches especially on the underside of the hull down side is their black colour .
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Old 04 April 2012, 22:01   #4
Nathan k's Avatar
Country: UK - England
Town: Lyndhurst
Boat name: Airborne
Make: SR4
Length: 4m +
Engine: 40hp
Join Date: Oct 2011
Posts: 216
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I'm also having a problem like this, does anyone know what the strongest hypalon glue is?
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Old 05 April 2012, 09:46   #5
Country: Finland
Town: Helsinki
Boat name: SR 5.4
Make: Avon
Length: 4m +
Engine: Toh1 3,5 Yam 90/2S
Join Date: Oct 2009
Posts: 919
I have used rema-tiptop SC 2000, it seams to be incredible strong stuff, have used it on a simmilar aplication on my rib, no issues.
fun on a boat is inversely proportional to size...sort of anyway
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Old 07 April 2012, 07:33   #6
Tim M's Avatar
Country: France
Town: Côte d'Azur
Boat name: Beaver Patrol
Make: Avon Searider SR4
Length: 4m +
Join Date: Jan 2004
Posts: 5,934
You can also put a little bit of sikaflex over the leading edge to stop the water trying to get under there.
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