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rubber apparel buttons from bike tires?

I made the bike tread belt, and of course wound up with two extra strips of rubber. Then I cut out shapes from them, which I think could be used as apparel buttons (as opposed to on/off buttons.) Is there an easier way to do this than with scissors? Also, buttons are often harder than rubber tires, but I also know that rubber gets hard over the years. Is there a simple way for me to make the rubber harder?

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NachoMahma8 years ago
. For round buttons, a hollow punch (aka gasket punch) should work.
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. Vulcanization. No it doesn't have anything to do with Mister Spock.
lotusduck (author)  NachoMahma8 years ago
Hmm, good idea. I think I will try the instructable on die cutting also. I already read the wikipedia article on vulcanization, and while informative it doesn't really have a recipe for treating already vulcanized tires. I guess I can just pop them in the oven and hope for the best?
Did they melt? Or worse yet, did you set off the smoke alarms? :-)
lotusduck (author)  Goodhart8 years ago
Haven't done it yet, but they would not melt , since the vulcanizing temperature listed on wikipedia is like 320 degrees F, and these are already vulcanized making them resistant to melting.
Yes, if you keep your oven below that temp. Lots of food is baked/broiled at the 350o to 475o F range. I was just being overly cautious again :-)
lotusduck (author)  Goodhart8 years ago
Not to quibble, but the info I read on vulcanizing made it seem that melting down vulcanized rubber is a difficult process in the factory, and would be impractical or impossible to do at home.
Hmm, I wonder what my soldering iron temp. is then....it seems to be able to melt and slice through most hardened rubber grommets I have had to remove "Rambo style" in the past. I wonder if they are referring to "well hardened rubber"?
lotusduck (author)  Goodhart8 years ago
I initially thought that a soldering iron would cut right through a rubber tire, so I tried it. It softened it enough to poke through, but only very slowly and with some difficulty. Room temp scissors turned out to be much easier, even though they are tough for scissors. I don't know if the non-rubber fibers inside of bike tires have anything to do with this.
The only time I had to "cut" a bike tire, was after a tire gauge failure, did not warm me that the tire was reaching critical inflation, and it blew up in my face (DON'T try this at home!). To wheel the bike home without carrying the front end the entire 5 miles, I had to cut it off (yes, that is wire in the edge that seals the air in). It was fibrous and tough. I never really tried to melt one though I knew they softened after a lot of riding (and then hardened once they cooled down).
. Worth a try.
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