Greetings, All
I have a tube which I would like to make the inside reflective.
Does anyone know if there is a reflective type of spray or dip that I can coat the inside of the tube with
to give it a mirror type of coating?
TIA
sal
40 years ago, I would have said look in the Yellow pages under mirrors,
for a re-silvering shop. These people would use a modification of "John
A. Brashear's " silvering process. In this process a Silver
Nitrate/Ammonium Hydroxide solution would be Reduced to a metallic
Silver film on any surface using a Glucose solution . This is very much
equipment simpler than Vaccumn evaporation for large or irregular objects.
This is or was the method of choice for "Thermos Bottles", Dewar Flasks.
Most "Silvered objects are now Vaccumn Coated with Aluminum, very
cheaply once you acquire a suitable Chamber.
For a one time, application 25 grams of Silver Nitrate would probably
coat several square Meters. A tube would be simple to silver, using the
tube itself as your reaction chamber. I did silver my first Telescope
Mirror using this method. I recently Aluminized it in a Vaccumn Chamber,
very much cleaner and easier, but then how many people have easy access
to an Electron Microscope Lab.
Yukio YANO