How is the telescope mirror made?

[Zoran Monevski]

Ok I have the concave glass with the sagita and with the focal length, but just the glass. Now I need to help me and answer me how I will make the glass to reflect from the sagita.I need to know what is the chemicals to make the mirror (the reflecting part).It is probably some aluminium fluid but I don't know what exactly. Please help me and tell me the process...

[eri]

As far as making a mirror goes, most people who make their own mirrors do the grinding themselves (making it concave) and then send it out to be aluminized (make it shiny).

[injanier]

Once you have the proper curve to the glass, it needs to be polished, parabolized, and tested to verify the proper shape. After that, most people send the mirror out to be aluminized, via a process involving vaporizing aluminum in a vacuum. There are chemical processes that will deposit a silver coating, but they are tricky and sometimes dangerous, and silver coatings don't last as long as aluminum.