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Author Topic: Rub Patch Gluing  (Read 1812 times)
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chilese
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« on: February 05, 2013, 02:57 PM »

I have a thick, fuzzy rub patch which is about 1/2 on (or off

depending on your glass of water outlook).

So, best way to reattach?

Hot glue  Shocked

Rubber cement

Epoxy

bubblegum

I'm open.

Not my kite so let's be on the safe side.

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thief
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« Reply #1 on: February 05, 2013, 03:17 PM »

i would probably use goo gone and some QTips and slowly remove the entire thing then slap on a new fuzzy side velcro patch....
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« Reply #2 on: February 05, 2013, 05:19 PM »

That Thief, always so practical!   Grin
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Hal
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« Reply #3 on: February 05, 2013, 07:00 PM »

Rip that sucker off like an old band-aid Shocked Shocked.  O.K., don't. I've always used clear sail repair tape for my rub patches. I draw a circle using a quarter as a  template, and put one of the front and then a matching one on the back. I'm presently using sail repair tape from West Marine. Got a big ol' roll of it, so a lifetime supply..

Lee
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DD
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« Reply #4 on: February 05, 2013, 07:09 PM »

i would probably use goo gone and some QTips and slowly remove the entire thing then slap on a new fuzzy side velcro patch....
+1
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indigo_wolf
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« Reply #5 on: February 05, 2013, 07:55 PM »

i would probably use goo gone and some QTips and slowly remove the entire thing then slap on a new fuzzy side velcro patch....
+1

+2  generally make the new rub patch a long oval so there are no sharp edges to get sheared/peeled off.

ATB,
Sam
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Steve
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« Reply #6 on: February 05, 2013, 09:16 PM »

Is it round? on a Prism?  may have an exact replacement for you ... if I can get to the shop.
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chilese
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« Reply #7 on: February 05, 2013, 10:18 PM »

It's oval shaped:



You just get better big guy.  Smiley
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mikenchico
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« Reply #8 on: February 05, 2013, 10:21 PM »

yep, replace the whole thing, cleaner then a repair. If you use goo gone be sure to clean the sail of any residue before applying the new rub patch. Steve has Moonie Tape also if you want to go that way when replacing it.

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Michel
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« Reply #9 on: February 05, 2013, 10:56 PM »

Double-sided acrylic adhesive tape or (better) Pressure Sensitive Tape by 3M.
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Ara Ararauna
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« Reply #10 on: February 06, 2013, 04:59 AM »

Hi,

I'm sorry I'm a bit lost and I want to learn about these maintenance issues.

Is the rub patch the reinforcement for the upper spreader?
If so, aren't they usually sewn to the sail?
The one on my Soul is also getting worn down but I wasn't sure about how to get around changing it.
Cut and remove the thread all around and substitute by a new one? Stick some new reinforcement on top without removing the old?

So, if the rub patch is what I think it is, I'm really interested in these procedures but I want to make sure.
Thanks.
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indigo_wolf
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« Reply #11 on: February 06, 2013, 06:37 AM »

Is the rub patch the reinforcement for the upper spreader?

It's the area of material where the upper spreader crosses the spine and, in most cases, that leaves a patch of nylon sandwiched between the two (upper spreader & spine).

As the sail loads and unloads with air, there a bit a movement by the upper spreader as it shifts its position due to the flex available in the upper leading edge connectors.  This combination of movement and the pressure on the sail in that area between the spine and upper spreader leads to wear.  Different kites use different materials to combat this wear by applying a "sacrificial" (replaceable) patch.  The patches can be diamond shaped, oval, circular (I believe the Prism Flashlight used a circular patch), rectangular, etc.   Some low mass kites (Prism Micron, with it's tiny upper spreader) forgo the patch entirely.   

These materials include a slightly stiffer/more abrasion-resistant nylon/polyester (these are generally the ones you see sewn to the sail), velcro (flocked loop side), and "Moonie" tape  (a ultra-high molecular weight polyethylene film with acrylic based adhesive).  Some kites opt just to have a cutout where the spine and upper spreader cross allowing the spars to make direct contact with each other.

If so, aren't they usually sewn to the sail?
The one on my Soul is also getting worn down but I wasn't sure about how to get around changing it.
Cut and remove the thread all around and substitute by a new one? Stick some new reinforcement on top without removing the old?

If you are going to replace it, I would say remove the old one otherwise you are just adding weight (minimal), bulk (which increases the pressure wear in that area due to the additional layer), and (possibly) another point of failure.

ATB,
Sam
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tpatter
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« Reply #12 on: February 06, 2013, 08:12 AM »

I put a ring of gaffers tape around the center of the upper spreader which seems to prevent wear to both the spreader and the wear patch.   
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« Reply #13 on: February 06, 2013, 10:39 AM »

Wow Sam! What a master class on rub patches.
Thanks!
Very useful.

Very interesting also this thing about the cut-outs... I have never seen any kites with them yet.

Also thanks a lot skb for the tips on the Soul rub patch. You have saved me from potential disaster as I was planning on un-sewing the original and trying to sew a new one.
So as John says, better be on the safe side.
I will double check it but the worn out part looks white as opposed to the black material of the patch and I thought it was already the sail that was visible through the hole. So I will look at it carefully and cover it with the Insignia tape or similar.

tpatter, I will also consider the tape on the US.

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In my bag...
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Singles: Conyne STD (my design)
DD
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« Reply #14 on: February 06, 2013, 11:36 AM »

just to be clear some of the patches are the 'soft' side of a velcro dot or other shape cutout
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