Re: ECode headlights - Saab 900 Bulletin Board - Saabnet.com
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Chrome is a good choice for shiny decorative surfaces and limited corrosion resistance. It is a poor choice as an optical reflector, due to lower than optimal overall reflectance, as well as pronounced spectral dropoff towards the red end of the spectrum. Silver is the best reflector with a reflectance of 95% and flat spectral response. However, silver is susceptible to corrosion from atmospheric sulfur. Aluminum comes in second (90%).
Modern headlight reflector surfaces are made using a sputtered aluminum vapor deposition process wherein pure aluminum is sprayed in a thin layer on the reflector surface, then coated with an aluminum oxide (sapphire) layer to prevent corrosion.
I was unable to find a US source for recoating headlights. I suspect this is a result of the use of sealed beam headlights.
Good luck in your search.
Blacksheep
->Posting last edited on Wed, 12 Jan 2022 06:15:33.
Posts in this Thread:
- ECode headlights, sandy hague, Sun, 9 Jan 2022 19:23:28
- H4 LEDs, Sandy Hague, Sun, 16 Jan 2022 16:05:12
- Re: H4 LEDs, Saabina
, Mon, 17 Jan 2022 08:49:29 - Re: H4 LEDs, Tushy, Sun, 16 Jan 2022 19:02:53
- No but I did put projector headlights in.., Goblin
, Sun, 16 Jan 2022 17:15:42- Re: No but I did put projector headlights in.., Gjetson, Mon, 17 Jan 2022 14:37:54
- Pics, Goblin
, Mon, 17 Jan 2022 15:54:19- Re: Pics, Goblin
, Mon, 17 Jan 2022 15:55:23- Re: Pics, Goblin
, Mon, 17 Jan 2022 15:56:08- Re: Pics, Goblin
, Mon, 17 Jan 2022 15:58:08
- Re: ECode headlights, Tushy, Sun, 9 Jan 2022 19:37:32
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