[Chaos-l] [Medoc-mountain-men] lessons on mirrors and cleaning

[RapidEye]

On Thu, Aug 16, 2012 at 9:36 AM, E. Allen Davis
<starstorm151 at embarqmail.com> wrote:
> Even acetone, a recommended procedure, would not remove these rings and anomolaies.  In a short period of time, literally 12 hours or so, the coating was damaged by the tap water.  I should have known better, but given what was on the mirror i thought I had nothing to lose.  and really I didn't because the coatings were on the verge of getting like they were before.

Any residue left behind by tap water shouldn't be soluble in acetone.
Acetone would be better at removing things like sap, finger oils, bug
grease, etc.
Adding a bit of distilled vinegar to water should help remove any
residues left by water and shouldn't be acidic enough to impact the
coatings.

>From what I understand, the overcoating they use on our mirrors really
should be pretty impervious to anything found in municipal drinking
water.
I'd say you got a bum coating.
What did Galaxy say when you contacted them?

I'm curious because my 18" is getting to the point that I'm
considering recoating it sometime in the near future.

Oh, since this isn't a public forum I don't mind saying this here....
A little birdie told me a certain Premium Mirror Grinder is going to
start offering Coating services in the very near future.  I wouldn't
want to be one of his first customers, but hopefully within the next
year or so he'll have his workflow hammered out.

j