To all those interested, the Oregon Scope Werks spray silvering pages are posted at https://is.gd/silvering
There you'll find these articles:
A. Everything you need to know to successfully spray silver a mirror
B. The testing behind an anti-tarnishing coating
C. A remarkably easy and surprisingly accurate way to measure the reflectivity of a coating - silver or aluminum
Although there's a lot of information here these pages are very much a work in progress. We're not the first to use the spray silvering technique, and we don't pretend to know everything about it. But we've had some notable successes, are learning more all the time, and have come up with two notable advancements with the anti-tarnish overcoating and the reflectivity test. It's time to share what we've learned so far.
Our hope is that others will join in the fun and help advance the state of the art over time. In the meantime, we'll update our pages as we learn more.
By the way, the Oregon Scope Werks is just a small group of amateur telescope makers who mostly communicate with each other through an email list. We're not a club, or any type of organized group for that matter, but we do share a desire to make homemade telescopes perform better, and preferably at a lower cost.