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Old 16 June 2013, 17:13   #1
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Repair Patch - Need Advice

Hi all, I need a little advice on fixing a patch that came off this weekend at Lake Nacimiento (The Dragon). See pics
  • Holds Air
  • I have repair materials (Glue/Tools)



















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Old 16 June 2013, 17:14   #2
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Additional Supplies

Zero experience patching or fixing patches.






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Old 16 June 2013, 17:18   #3
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Old 16 June 2013, 17:30   #4
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(1) There's lots of threads on repairs so do a search
(2) Its all about the prep.
(3) Make sure you know what the materials are made of and you have the right glue and instructions. Hypalon and PVC are not interchangeable.
(4) I've no experience with your toluene replacement - it might do the same job, it might do almost the same job, or it might not.
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Old 16 June 2013, 18:37   #5
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The toluene replacement will be fine for cleaning-it's got acetone in it. It should remove excess glue too. I've used acetone for both cleaning tubes and removing excess glue in the last few weeks.

Don't know about using it for thinning glue, but I suspect you won't need to thin the glue for that patch.
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Old 16 June 2013, 20:14   #6
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CENERAL INFO

TIDEL : Services : RIB Repairs : Tube Puncture Repairing : Dartmouth Brixham Salcombe Plymouth Devon Cornwall Torquay UK



USE THIS TO ABRADE ITS GTOM SEARS BUT ANYTHING SIMILAR FROM ANY TOOL OUTLET MIGHT DO

Gyros 11-24007 Flap Wheel 3/4" x 240 grit - Tools - Power Tool Accessories - Rotary Tool Accessories

OR HOME DEPOT

Lincoln Electric 1 in. x 1 in. 120-Grit Flap Wheel-KH159 at The Home Depot
GIVE THE FLAP A ROBUST SANDING WITH THIS BUT BE MORE SENSITIVE TO THE PREP ON THE TUBE ITSELF BE CAREFUL NOT TOO CREATE TOO MUCH HEAT ON THE TOOB
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Old 16 June 2013, 23:08   #7
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Very Helpful

Rogue Wave,

Thank you. Follow up question; should I be overly concerned about the separation of the top layer of the tube to the back of the patch? I opted not to remove the patch completely, so I am stuck with that light grey material separated from the darker inner tube material.

I am just going to do my pest to prep everything and piece it back together as best I can an hope it holds.
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Old 17 June 2013, 01:37   #8
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Replace the patch completely. The section you're going to glue on is frayed. Remember - preparation is key.
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Old 17 June 2013, 08:47   #9
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Pull Patch?

Quote:
Originally Posted by spartacus View Post
Replace the patch completely. The section you're going to glue on is frayed. Remember - preparation is key.
Spartacus,

Thanks, should I pull the whole patch even if it takes off more of the top material? Seems a little counter intuitive because when I pulled it back it exposed more of the darker material. If I use my solvent can I pull it off cleanly? The patch is about 1/3 off.
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Old 17 June 2013, 12:18   #10
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You can use a little heat from a hot air gun. You need to remove that patch.
It will be much worse going back and redoing a leaking/ poorly applied re-patch and newly applied glue.

Just take your time and follow glue opps you will find with a search.

Cheers, Squid
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Old 17 June 2013, 12:32   #11
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Quote:
Originally Posted by Squid Boat View Post
You can use a little heat from a hot air gun. You need to remove that patch.
It will be much worse going back and redoing a leaking/ poorly applied re-patch and newly applied glue.

Just take your time and follow glue opps you will find with a search.

Cheers, Squid
Squid,

Thanks, I will try a hair dryer. Cut a new patch or clean and replace the old one? Size and shape is unique and I am concerned about gettin it right.
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Old 17 June 2013, 12:48   #12
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Quote:
Originally Posted by ZacOps View Post
Squid,

Thanks, I will try a hair dryer. Cut a new patch or clean and replace the old one? Size and shape is unique and I am concerned about gettin it right.
New patch mate, I would walk ya through this but off to sea.

Cheers, Don
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Old 17 June 2013, 13:53   #13
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Get rid of the old patch entirely and throw it away. You need 2 brand new patches. For that large a hole you need an inner and outer patch.

Lots of threads here with patching instructions.
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Old 17 June 2013, 15:06   #14
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Quote:
Originally Posted by captnjack View Post
Get rid of the old patch entirely and throw it away. You need 2 brand new patches. For that large a hole you need an inner and outer patch.

Lots of threads here with patching instructions.
Captnjack,

Inside? I would have to cut into the tube. It is holding air now. That sounds really destructive.
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Old 17 June 2013, 20:58   #15
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Starting Repairs

Step One: Used hair dryer to pull the patch back and carefully keep most of the top layer of the tube.



Step Two: Cut away excess fabric exposing inside layer of the tube.



Step Three: Pause to reflect on how gnarly this looks and ask for more advice before I cut into things. I will be sanding off the glue while I wait for some mates to post advice.

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Old 17 June 2013, 21:04   #16
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Suggested Patch?



How do I best fit a patch for a tapered cone? That is some higher math.
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Old 17 June 2013, 22:03   #17
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Cleaned Area

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Old 18 June 2013, 10:59   #18
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Can anyone recommend a shop in California near San Luis Obispo that can repair tubes? Santa Barbara, San Francisco or Ventura.

This is beyond my DIY skills; complex cone repair.
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Old 18 June 2013, 11:56   #19
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Sal's inflatables in Alameda; kind of a opinionated guy, but the only one in my area.

salsinflatables.com 510-522-1824

Used to be a shop in Ventura (more of a retail place); don't know if they're still in business.

Luck;

jky

If you're searching for a repair shop, try rafting places as well. I suspect there are more of them than actual marine repair facilities.
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Old 18 June 2013, 12:15   #20
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Sorry I didn't realize this was just the outer layer of hypalon and the inner layer plus scrim was still intact. So no inner patch IMHO.

Quote:
Originally Posted by ZacOps View Post


How do I best fit a patch for a tapered cone? That is some higher math.
The circle is too small. You probably want an egg like shape with the tip of the egg pointing towards the tip of the cone. Minimum 1" overlap of the patch onto solid intact fabric.
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