[time-nuts] Hydrogen Maser KIT! Update #1

[Bill Dailey]

Good god, be core full with that.

Did you find any references to sputtering the coating.  I would think this would give you a more even and more adhesive coating.  Some chemical engineering labs at universities do that and would probably coat it for free.  I know Dr. Viljoen at Nebraska-Lincoln has a setup for that.  He usually sputters metal but I think a Teflon target would work the same.

Sent from mobile

> On Nov 3, 2014, at 10:09 AM, <cdelect at juno.com> <cdelect at juno.com> wrote:
> 
> Coating the bulb with Teflon involves coating the inside with a Teflon
> liquid aqueous dispersion, letting it dry, and then curing it in an oven
> at 380 to 400 degrees C for around 30 minutes while circulating dry air
> through the bulb.
> A little bit intricate but doable. Main concern is getting the bulb
> surface absolutely clean before coating.
> A hydrofluoric acid rinse is a must!
> 
> Cheers,
> 
> Corby
> 
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