Mirror silver coating update

[gb_astro]

After another couple of silver coating jobs that were not up to scratch, including my own 14.5",
Wayne of Saintech has decided to stop offering silver as a mirror coating option.
Wayne is still working on getting silver right but at the moment it is off the menu.
He is still offering standard and enhanced aluminium coatings.

gb.

[sally1jack (Phil)]

Sorry to hear that greg especially after your extended wait for your mirror, which coating are you going for?

phil

[gb_astro]

Hi Phil.
We are giving Saintech another chance with his Enhanced Aluminium.
Apparently this involves of two overcoats of 80 nanometre silicon dioxide.
Reflectivity is quoted at 96%.
gb.

Originally Posted by sally1jack

Sorry to hear that greg especially after your extended wait for your mirror, which coating are you going for?

phil

[erick (Eric)]

Looking forward to hear the result.

[Rodstar (Rod)]

Greg, we are all hoping the final outcome makes all of this agony worth it....

[gb_astro]

Originally Posted by Rodstar

Greg, we are all hoping the final outcome makes all of this agony worth it....

What else could go wrong?

Greg.

[Satchmo]

Well it all started with a dishonest USA mirror manufacturer supplying shonky interferometry data ( "0.96 Strehl ! ) with a sub standard mirror....