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Old 14-02-2017, 06:06 AM
onemoreblow onemoreblow is offline
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Default Rubber cement balloon "repairs"
I bought some rubber cement. Here is the wikipedia for what it is and why it (kind of) works.

https://en.wikipedia.org/wiki/Rubber_cement

Skeptical so far! I think skip the acetone and go straight to liquid latex might be a better route. But we'll see.
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Old 14-02-2017, 03:05 PM
someloonerguy someloonerguy is offline
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Default Re: Rubber cement balloon "repairs"
Rubber Cement can work. I patched this 24" using it. Got to about 33" before it popped. The area the balloon was patched was perfectly intact (it popped along a flute line).
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File Type: png patchedballoon.png (378.4 KB, 25 views)
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Old 14-02-2017, 08:06 PM
onemoreblow onemoreblow is offline
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Default Re: Rubber cement balloon "repairs"
I tried inflating 2 balloons and squishing them together with rubber cement over the area I wanted to "patch." I then popped the donor balloon, thinking it might leave behind its skin. Didn't work! They both popped.

I also tried with an uninflated balloon - the patch didn't stretch evenly.

Best so far was to apply a piece of popped balloon over a mostly inflated balloon, then continue inflating. The patch had to be relatively large. I am not that skilled at applying them
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Old 15-02-2017, 01:52 AM
npratt npratt is offline
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Default Re: Rubber cement balloon "repairs"
Some years ago on C&B someone posted instructions. If I remember correctly:
1. Turn the balloon to be patched inside out.
2. The patch (from a popped donor balloon) should be as perfectly round as possible, and be about 1/2 inch, 1-1/4 cm, in diameter.
3. Clean the area to patch, and the patch itself, with alcohol.
4. Apply rubber cement to both the patch area and the patch. Allow to dry,
5. Press the patch (cement side down) onto the patch area. With the back of a spoon, press the rubber completely together.
6. Apply talcum or corn starch to the balloon to keep from sticking.
7. Turn balloon back right side out.
8. Wait a day before inflating.

I patched a 646 balloon that developed a pinhole this way and it held well.
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