Re: Re: Rubber testing: Chiming In

From: William Gowen <wdgowen_at_gmail.com>
Date: Fri, 09 Nov 2012 12:51:49 -0500

My flight limit number is the number of times I can wind a motor before
it breaks.

On 11/9/2012 12:47 PM, joemargbartek wrote:
>
> Don
> You sure can make a rubber motor do its stuff, so if you leave the oil
> on it must be OK. The silicone oil has a listed shelf life of 60
> months. I've used it in heating baths and it's pretty stable. It does
> dissolve oxygen ( see mice immersed in it still breathing and the
> "Abyss" movie)and latex rubber is sensitive to oxidation. The big
> question is "how much does it soften the rubber?". We've all seen
> rubber stiffen with age under the influence of light and air.
> Experience would set a time and flight number limit on these motors,
> stored out of light. Maybe Mike Kirda could take some loops of his
> rubber and stretch them over some nails in a board, with and without
> lube, to give a "days to break" number.
>
> Thanks for the tips
>
> Joe
>
> --- In Indoor_Construction_at_yahoogroups.com
> <mailto:Indoor_Construction%40yahoogroups.com>, "Don DeLoach"
> <ddeloach_at_...> wrote:
> >
> > Do you have a Dow-Corning number for your oil? How do you apply it?
> Smear it
> > on with a q-tip? Disperse it in a solvent?
> >
> > Latex glove (when I'm lubing my big outdoor motors).
> >
> >
> > Do you clean it off between flying sessions, or just mop off the excess?
> >
> > No. but I am no expert. Maybe I should?
> >
>
>
Received on Fri Nov 09 2012 - 09:51:54 CET