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Thinking Dental Elastics

Post  ama353 Mon Nov 04, 2013 6:16 pm

Many of the Cox airplanes use rubber bands to hold the model together. My experience has been that the rubber bands don't hold up well once they're exposed to fuel or exhaust.

If anyone has used dental elastics (rubber bands) for this or any other purpose, please share your experience. My suspicion would be that they must be pretty durable, but then, I'm not a dentist. Really!


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Thinking Re: Dental Elastics

Post  RknRusty Mon Nov 04, 2013 9:07 pm

These are similar to the #32 size fuelproof rubber bands I buy at my LHS:
http://www3.towerhobbies.com/cgi-bin/wti0001p?&I=LXJC76&P=FR#tech
I change them every time i go fly. I don't know about the dental rubber bands.

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Thinking Re: Dental Elastics

Post  John Goddard Fri Nov 15, 2013 6:14 pm

The trick with rubber bands is to wash them in washing up liquid when you get them home
then wipe them dry and give them a liberal dusting with talcum powder.
I'm not sure how it happens but it makes them almost like new and you'll get months
of use out of them if you follow the above the same day as flying rather than chuck them
away for a week or how ever long you have between sessions.
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Thinking Re: Dental Elastics

Post  Cribbs74 Fri Nov 15, 2013 6:19 pm

John??? What the heck! You disappear only to return and post useful info on rubber bands?

Good to have you back.

Ron
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Thinking Re: Dental Elastics

Post  John Goddard Fri Nov 15, 2013 6:43 pm

Yo Ron good ta b bad
Well
Almost back in the real world Very Happy 

I have missed all this.
lol! 
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Thinking Re: Dental Elastics

Post  Cribbs74 Fri Nov 15, 2013 7:57 pm

We missed you man!!!
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Thinking Re: Dental Elastics

Post  Mark Boesen Fri Nov 15, 2013 8:16 pm

hey John!

...you know as i'm saying howdy to our long lost English buddy, i 'm wondering if something like this would last longer,

http://www.walmart.com/ip/Scunci-No-Damage-Hair-Ties-Black-15-count/21143637

and yes i agree you gotta clean oil/fuel off of them after every use to get any kind of time out of them.
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Thinking Re: Dental Elastics

Post  pkrankow Fri Nov 15, 2013 9:36 pm

Mark Boesen wrote:hey John!

...you know as i'm saying howdy to our long lost English buddy, i 'm wondering if something like this would last longer,

http://www.walmart.com/ip/Scunci-No-Damage-Hair-Ties-Black-15-count/21143637

and yes i agree you gotta clean oil/fuel off of them after every use to get any kind of time out of them.
There is another version of those that is made from silicone rubber in bright colors.

Phil
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Thinking Re: Dental Elastics

Post  RknRusty Fri Nov 15, 2013 9:50 pm

pkrankow wrote:
There is another version of those that is made from silicone rubber in bright colors.

Phil
I bought some of those colorful ones at Dollar General and bungeed some panty hose on my Thunder Tiger venturi with a couple of them. After I choked it to prime the engine, they got wet and melted, then the hose got sucked in and jammed in the crankshaft. Mmmmkay, so much for that idea. I flew naked with no panty hose that day! No video.

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Thinking Re: Dental Elastics

Post  Cribbs74 Fri Nov 15, 2013 10:14 pm

Thank goodness!
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Thinking Re: Dental Elastics

Post  John Goddard Sat Nov 16, 2013 2:10 am

RknRusty wrote:
pkrankow wrote:
There is another version of those that is made from silicone rubber in bright colors.

Phil
I bought some of those colorful ones at Dollar General and bungeed some panty hose on my Thunder Tiger venturi with a couple of them. After I choked it to prime the engine, they got wet and melted, then the hose got sucked in and jammed in the crankshaft. Mmmmkay, so much for that idea. I flew naked with no panty hose that day! No video.

Rusty
Id have paid good money to see that  No!
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Thinking Re: Dental Elastics

Post  OVERLORD Sat Nov 16, 2013 2:55 am

RknRusty wrote:
pkrankow wrote:
There is another version of those that is made from silicone rubber in bright colors.

Phil
I bought some of those colorful ones at Dollar General and bungeed some panty hose on my Thunder Tiger venturi with a couple of them. After I choked it to prime the engine, they got wet and melted, then the hose got sucked in and jammed in the crankshaft. Mmmmkay, so much for that idea. I flew naked with no panty hose that day! No video.

Rusty
Aie, Rusty, I warned you for that!!

https://www.coxengineforum.com/t4969-tee-dee-051

"Re: tee dee 051

 OVERLORD on Fri May 24, 2013 8:57 am
Has anyone tried the nylon hose yet?

I would be very carefull with it: it is not rigid and can distort by the air flow. It is after all a resistance.

I knew a guy who put a nylon hose over the carburettor of his car as an air filter. The hose was sucked in the intake manifold and was wrapped around the valves. He got himself a nice job that day."
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Thinking Re: Dental Elastics

Post  RknRusty Sat Nov 16, 2013 3:08 am

Yeah, Lieven, and I pooh poohed your warning and did it anyway. See what I got for that! Actually I did do it again with waxed dental floss to hold it on. But a real snap on air filter is a better idea for restricting the flow. and you can block it off more safely if needed.

Rusty

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Thinking Re: Dental Elastics

Post  RknRusty Sat Nov 16, 2013 3:18 am

John Goddard wrote:
RknRusty wrote:...I flew naked with no panty hose that day! No video.

Rusty
Id have paid good money to see that  No!
You English guys are so weird!lol! 
Glad you dropped in to entertain us, JG.

Rusty

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